Journal articles: 'Synchrotron in situ imaging'

1

Kawasaki, Koichi. "In-situ Analysis by Synchrotron Radiation Imaging." Materia Japan 44, no. 7 (2005): 580–86. http://dx.doi.org/10.2320/materia.44.580.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Dobbyn, R. C., J. Farris, D. G. Harlow, T. J. Delph, and R. J. Fields. "In-situ imaging of creep cavities by synchrotron microradiography." Scripta Metallurgica 23, no. 5 (May 1989): 621–23. http://dx.doi.org/10.1016/0036-9748(89)90501-2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Cloetens, Peter, Wolfgang Ludwig, Elodie Boller, Françoise Peyrin, Michel Chlenker, and Jose Baruchel. "3D IMAGING USING COHERENT SYNCHROTRON RADIATION." Image Analysis & Stereology 21, no. 4 (May 3, 2011): 75. http://dx.doi.org/10.5566/ias.v21.ps75-s85.

Full text

Abstract:

Three dimensional imaging is becoming a standard tool for medical, scientific and industrial applications. The use of modem synchrotron radiation sources for monochromatic beam micro-tomography provides several new features. Along with enhanced signal-to-noise ratio and improved spatial resolution, these include the possibility of quantitative measurements, the easy incorporation of special sample environment devices for in-situ experiments, and a simple implementation of phase imaging. These 3D approaches overcome some of the limitations of 2D measurements. They require new tools for image analysis.

APA, Harvard, Vancouver, ISO, and other styles

4

Chen, Guang, Yonghua Du, Pengfei An, Lirong Zheng, Shengqi Chu, and Jing Zhang. "In situ depth-resolved synchrotron radiation X-ray spectroscopy study of radiation-induced Au deposition." Journal of Synchrotron Radiation 26, no. 6 (September 10, 2019): 1940–44. http://dx.doi.org/10.1107/s1600577519011111.

Full text

Abstract:

To illustrate the process of synchrotron radiation induced reduction of tetrachloroauric solutions, a confocal synchrotron radiation X-ray spectroscopy experiments system has been introduced to monitor the depth-resolved elemental Au distribution and chemical species during the Au reduction reaction. Combining the results from confocal X-ray spectroscopy with that from X-ray contrast imaging, the mechanism of synchrotron radiation induced Au reduction, along with the process of Au deposition, were proposed. These demonstrations provide novel avenues to spatially resolved analysis of in situ solution radiolysis.

APA, Harvard, Vancouver, ISO, and other styles

5

Feng, Shikang, Enzo Liotti, Matthew D. Wilson, Lydia Jowitt, and Patrick S. Grant. "In situ mapping of chemical segregation using synchrotron x-ray imaging." MRS Bulletin 45, no. 11 (November 2020): 934–42. http://dx.doi.org/10.1557/mrs.2020.270.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Rahman, K. M. Mostafijur, Jerzy Szpunar, and George Belev. "In Situ 3D Synchrotron Imaging of Failure Processes in Engineering Materials." Journal of Physics: Conference Series 425, no. 13 (March 22, 2013): 132004. http://dx.doi.org/10.1088/1742-6596/425/13/132004.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Chahine, Gilbert André, Nils Blanc, Stephan Arnaud, Frédéric De Geuser, René Guinebretière, and Nathalie Boudet. "Advanced Non-Destructive in Situ Characterization of Metals with the French Collaborating Research Group D2AM/BM02 Beamline at the European Synchrotron Radiation Facility." Metals 9, no. 3 (March 19, 2019): 352. http://dx.doi.org/10.3390/met9030352.

Full text

Abstract:

The ability to non-destructively measure the structural properties of devices, either in situ or operando, are now possible using an intense X-ray synchrotron source combined with specialized equipment. This tool attracted researchers, in particular metallurgists, to attempt more complex and ambitious experiments aimed at answering unresolved questions in formation mechanisms, phase transitions, and magnetism complex alloys for industrial applications. In this paper, we introduce the diffraction diffusion anomale multi-longueur d’onde (D2AM) beamline, a French collaborating research group (CRG) beamline at the European Synchrotron Radiation Facility (ESRF), partially dedicated to in situ X-ray scattering experiments. The design of the beamline combined with the available equipment (two-dimensional fast photon counting detectors, sophisticated high precision kappa diffractometer, a variety of sample environments, continuous scanning for X-ray imaging, and specific software for data analysis) has made the D2AM beamline a highly efficient tool for advanced, in situ synchrotron characterization in materials science, e.g., single crystal or polycrystalline materials, powders, liquids, thin films, or epitaxial nanostructures. This paper gathers the main elements and equipment available at the beamline and shows its potential and flexibility in performing a wide variety of temporally, spatially, and energetically resolved X-ray synchrotron scattering measurements in situ.

APA, Harvard, Vancouver, ISO, and other styles

8

Yang, Wenge, Yijin Liu, Junyue Wang, Wendy Mao, and Ho-kwang Mao. "In-situ nanoscale imaging of charge transfer of BiNiO3 under high pressure." Acta Crystallographica Section A Foundations and Advances 70, a1 (August 5, 2014): C403. http://dx.doi.org/10.1107/s2053273314095965.

Full text

Abstract:

Over last decades, both synchrotron radiation techniques and high pressure research have made great progress. Advanced synchrotron capabilities with high spatial resolution, high flux, and high energy resolution provides us many new avenues to conduct advanced high pressure researches. In this talk, we will focus on the new developments of the nanoscale imaging techniques on the pressure induced phase separation in three dimensions. BiNiO3 under goes a charge transfer induced phase transition under high pressure or temperature, which shows excellent colossal negative thermal expansion effect [1]. Co-exist of both high density and low density phases over a wide range pressure or temperature plays the key roles on the negative thermal expansion behavior. We utilized a newly developed X-ray absorption near edge spectroscopy tomography method, and successfully resolved the mixture of high/low pressure phases as a function of pressure at tens of nanometer resolution. By choosing incident x-ray energy near Ni absorption edge, the pressure induced valence transition can be mapped at tens of nanometer scale in 3d, which provides crucial information on the HP-LP phase boundary [2]. As temperature driven grain growth upon heating, we can draw fundamental information on the pressure-induced phase growth mechanism.

APA, Harvard, Vancouver, ISO, and other styles

9

Parab, Niranjan D., Zherui Guo, Matthew Hudspeth, Benjamin Claus, Boon Him Lim, Tao Sun, Xianghui Xiao, Kamel Fezzaa, and Weinong W. Chen. "In situ observation of fracture processes in high-strength concretes and limestone using high-speed X-ray phase-contrast imaging." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 375, no. 2085 (January 28, 2017): 20160178. http://dx.doi.org/10.1098/rsta.2016.0178.

Full text

Abstract:

The mechanical properties and fracture mechanisms of geomaterials and construction materials such as concrete are reported to be dependent on the loading rates. However, the in situ cracking inside such specimens cannot be visualized using traditional optical imaging methods since the materials are opaque. In this study, the in situ sub-surface failure/damage mechanisms in Cor-Tuf (a reactive powder concrete), a high-strength concrete (HSC) and Indiana limestone under dynamic loading were investigated using high-speed synchrotron X-ray phase-contrast imaging. Dynamic compressive loading was applied using a modified Kolsky bar and fracture images were recorded using a synchronized high-speed synchrotron X-ray imaging set-up. Three-dimensional synchrotron X-ray tomography was also performed to record the microstructure of the specimens before dynamic loading. In the Cor-Tuf and HSC specimens, two different modes of cracking were observed: straight cracking or angular cracking with respect to the direction of loading. In limestone, cracks followed the grain boundaries and voids, ultimately fracturing the specimen. Cracks in HSC were more tortuous than the cracks in Cor-Tuf specimens. The effects of the microstructure on the observed cracking behaviour are discussed. This article is part of the themed issue ‘Experimental testing and modelling of brittle materials at high strain rates’.

APA, Harvard, Vancouver, ISO, and other styles

10

Mohd Salleh, M. A. A., A. Sugiyama, Hideyuki Yasuda, Stuart D. McDonald, and Kazuhiro Nogita. "In Situ Soldering Process Technique by Synchrotron X-Ray Imaging." Applied Mechanics and Materials 754-755 (April 2015): 508–12. http://dx.doi.org/10.4028/www.scientific.net/amm.754-755.508.

Full text

Abstract:

This paper demonstrates the development of an experimental technique of in-situ observation for soldering of Sn-0.7wt%Cu lead-free solder on a Cu substrate which was achieved for the first time by synchrotron X-ray imaging. Reactions between liquid solder and Cu substrate during a soldering process were able to be recorded in real-time. Individual stages of the soldering process consisted of flux activation in removal of Cu oxide, solder melting and contact with the Cu substrate (wetting) and intermetallic compound (IMC) and void formation between the solder and Cu substrate. The technique development which includes experimental setup with calculated optimum beam energy in the range of 20 – 30 keV appears to result in a clear observation of real-time X-ray imaging of the soldering process. This technique provides a key method to understand the mechanism of formation of micro-electronic inter-connects for future electronic packaging applications.

APA, Harvard, Vancouver, ISO, and other styles

11

Zhang, Xiaolin, Zijue Tang, Yi Wu, Oleg Devoino, Haowei Wang, and Hongze Wang. "Progress in in situ x-ray imaging of welding process." Review of Scientific Instruments 93, no. 7 (July 1, 2022): 071501. http://dx.doi.org/10.1063/5.0074042.

Full text

Abstract:

Welding has been widely used in industry for hundreds of years, and pursuing higher weld quality requires a better understanding of the welding process. The x-ray imaging technique is a powerful tool to in situ observe the inner characteristics of the melt pool in the welding process. Here, current progress in in situ x-ray imaging of the welding process is concluded, including the experiments based on the laboratory-based single x-ray imaging system, the laboratory-based double x-ray imaging system, and the synchrotron radiation tomography system. The corresponding experimental results with the in situ x-ray imaging technique about the formation and evolution of the keyhole, melt pool, pore, solidification crack, etc., have been introduced. A new understanding of welding based on the current progress in in situ x-ray imaging of additive manufacturing is concluded. In addition, the future development trend of applying x-ray imaging technology in the field of monitoring the welding process is proposed.

APA, Harvard, Vancouver, ISO, and other styles

12

Fong, D. D., C. A. Lucas, M. I. Richard, and M. F. Toney. "X-Ray Probes for In Situ Studies of Interfaces." MRS Bulletin 35, no. 7 (July 2010): 504–13. http://dx.doi.org/10.1557/mrs2010.599.

Full text

Abstract:

AbstractSurfaces and buried interfaces play critical roles in many environmental, catalytic, and tribological processes and in a wide variety of applications, including microelectronics and optoelectronics. Interfacial structure and composition are closely coupled to their surroundings, and probes that yield information about materials in situ are essential to obtain a thorough understanding of interface functions and properties. The highly brilliant, hard x-rays available from synchrotron light sources can easily penetrate through gas or liquid environments, or even solid thin-film overlayers, and enable real-time monitoring of the evolving chemistry and structure of the interface with atomic-scale resolution. Here we review the in situ study of interfaces by a variety of synchrotron x-ray scattering techniques and provide several examples of their application in electrochemical processes and thin-film island growth. We also discuss recent advances in analytical techniques and x-ray optics that are facilitating the in situ study of surfaces and buried interfaces with direct imaging.

APA, Harvard, Vancouver, ISO, and other styles

13

Gong, Yuxin, Zhenjiang Yu, and Jiajun Wang. "Application of X-ray imaging technology in energy materials research." Imaging and Radiation Research 5, no. 2 (July 21, 2009): 63. http://dx.doi.org/10.24294/irr.v4i1.1737.

Full text

Abstract:

With the increasing demand for sustainable energy, advanced characterization methods are becoming more and more important in the field of energy materials research. With the help of X-ray imaging technology, we can obtain the morphology, structure and stress change information of energy materials in real time from two-dimensional and three-dimensional perspectives. In addition, with the help of high penetration X-ray and high brightness synchrotron radiation source, in-situ experiments are designed to obtain the qualitative and quantitative change information of samples during the charge and discharge process. In this paper, X-ray imaging technology based on synchrotron and its related applications are reviewed. The applications of several main X-ray imaging technologies in the field of energy materials, including X-ray projection imaging, transmission X-ray microscopy, scanning transmission X-ray microscopy, X-ray fluorescence microscopy and coherent diffraction imaging, are discussed. The application prospects and development directions of X-ray imaging in the future are prospected.

APA, Harvard, Vancouver, ISO, and other styles

14

Lhuissier, Pierre, Louis Hébrard, Xavier Bataillon, Pierre Lapouge, Frédéric Coste, Patrice Peyre, Elodie Boller, Jean-Jacques Blandin, Luc Salvo, and Guilhem Martin. "Miniature laser powder bed fusion system for in situ synchrotron x-ray micro-computed tomography experiments at the European Synchrotron Radiation Facility." Review of Scientific Instruments 93, no. 8 (August 1, 2022): 083701. http://dx.doi.org/10.1063/5.0090623.

Full text

Abstract:

We describe our miniature laser powder bed fusion (L-PBF) system for in situ synchrotron x-ray micro-computed tomography (XCT) at the European Synchrotron Radiation Facility. This replicator was designed to extend the characterization of L-PBF to 3D. This instrument fills in a technical gap because the existing replicators were mostly designed to shed light on the dynamic mechanisms involved in molten pool formation but, therefore, suffered from a lack of 3D information. Technical details regarding the setup and beamline integration are given. Experimental validations via post-mortem XCT scans and in situ scans acquired during experiments conducted at the BM05 beamline of the European Synchrotron Radiation Facility are provided. Based on a few illustrative examples, we show that such a replicator opens the path to collect key 3D information that to date could not be available. Our miniature instrument complements the other replicators developed in the world by other research groups that enable operando x-ray imaging (radiography) and operando x-ray diffraction.

APA, Harvard, Vancouver, ISO, and other styles

15

Li, Chen, Yuzhou Zhang, Ning Zhu, Heather N. Emady, and Lifeng Zhang. "Experimental investigation of wet pharmaceutical granulation using in-situ synchrotron X-ray imaging." Powder Technology 378 (January 2021): 65–75. http://dx.doi.org/10.1016/j.powtec.2020.09.063.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Patterson, Brian M., Nikhilesh Chawla, Jason Williams, Xianghui Xiao, Mathew Robinson, Zachary Smith, Kevin Henderson, and Nikolaus Cordes. "In-situ Compression Imaging of Polymer Foams using Synchrotron X-ray Computed Tomography." Microscopy and Microanalysis 20, S3 (August 2014): 672–73. http://dx.doi.org/10.1017/s143192761400508x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Bobel, Andrew, Louis G. Hector, Isaac Chelladurai, Anil K. Sachdev, Tyson Brown, Whitney A. Poling, Robert Kubic, et al. "In situ synchrotron X-ray imaging of 4140 steel laser powder bed fusion." Materialia 6 (June 2019): 100306. http://dx.doi.org/10.1016/j.mtla.2019.100306.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Schulz-Mirbach, Tanja, Alberto Mittone, Alberto Bravin, Alexander Rack, Friedrich Ladich, and Martin Heß. "First attempt to visualize otolith motion in-situ using synchrotron radiation imaging techniques." Journal of the Acoustical Society of America 141, no. 5 (May 2017): 3861. http://dx.doi.org/10.1121/1.4988623.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Pereiro-López, E., W. Ludwig, D. Bellet, and C. Lemaignan. "In situ investigation of Al bicrystal embrittlement by liquid Ga using synchrotron imaging." Acta Materialia 54, no. 16 (September 2006): 4307–16. http://dx.doi.org/10.1016/j.actamat.2006.05.021.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Martin, Aiden A., Jenny Wang, Philip J. DePond, Maria Strantza, Jean-Baptiste Forien, Sanam Gorgannejad, Gabriel M. Guss, et al. "A laser powder bed fusion system for operando synchrotron x-ray imaging and correlative diagnostic experiments at the Stanford Synchrotron Radiation Lightsource." Review of Scientific Instruments 93, no. 4 (April 1, 2022): 043702. http://dx.doi.org/10.1063/5.0080724.

Full text

Abstract:

Laser powder bed fusion (LPBF) is a highly dynamic multi-physics process used for the additive manufacturing (AM) of metal components. Improving process understanding and validating predictive computational models require high-fidelity diagnostics capable of capturing data in challenging environments. Synchrotron x-ray techniques play a vital role in the validation process as they are the only in situ diagnostic capable of imaging sub-surface melt pool dynamics and microstructure evolution during LPBF-AM. In this article, a laboratory scale system designed to mimic LPBF process conditions while operating at a synchrotron facility is described. The system is implemented with process accurate atmospheric conditions, including an air knife for active vapor plume removal. Significantly, the chamber also incorporates a diagnostic sensor suite that monitors emitted optical, acoustic, and electronic signals during laser processing with coincident x-ray imaging. The addition of the sensor suite enables validation of these industrially compatible single point sensors by detecting pore formation and spatter events and directly correlating the events with changes in the detected signal. Experiments in the Ti–6Al–4V alloy performed at the Stanford Synchrotron Radiation Lightsource using the system are detailed with sufficient sampling rates to probe melt pool dynamics. X-ray imaging captures melt pool dynamics at frame rates of 20 kHz with a 2 µm pixel resolution, and the coincident diagnostic sensor data are recorded at 470 kHz. This work shows that the current system enables the in situ detection of defects during the LPBF process and permits direct correlation of diagnostic signatures at the exact time of defect formation.

APA, Harvard, Vancouver, ISO, and other styles

21

Enzmann, F., M. M. Miedaner, M. Kersten, N. von Blohn, S. K. Mitra, S. Borrmann, M. Stampanoni, M. Ammann, and T. Huthwelker. "Pore structure 3-D imaging by synchrotron micro-tomography of graupel grains." Atmospheric Measurement Techniques Discussions 3, no. 6 (November 5, 2010): 4761–89. http://dx.doi.org/10.5194/amtd-3-4761-2010.

Full text

Abstract:

Abstract. Three dimensional air bubble structure including size distribution, concentration and spatial distribution are important clues in identifying the growth regime of graupel and hailstone. For imaging of the bubble structure, a cryo-stage was developed to adapt to the standard setup of the SLS X04SA tomography beamline (actually replaced by the TOMCAT beamline) at the Swiss Light Source synchrotron facility to the requirements of ice particle micro-tomography. The cryo-stage setup provides for the first time 3-D-data on the individual inner pore shape delineation down to μm spatial (voxel) resolution of sub-mm small naturally as well as wind tunnel rimed graupel particles. Special care must be taken for maintaining a cooling chain between sampling and measurement. It must be kept at liquid nitrogen temperature (77 K) until measurement of the original structure at the μm spatial scale. However, even at that temperature there is no chance to preserve any ice bubble structure at sub-μm spatial resolution due to the Kelvin effect. In natural graupel grains, Y-shaped morphology of air-filled pores was found. This morphology transformed into smaller and rounded voids well-known from literature when the ice particle was annealed for as short as half an hour at 265 K and must, therefore, be regarded as artificial rather than representing the in situ pore structure. With the new synchrotron tomography approach, quantitative information on the in situ pore structure statistics within individual samples representative for a known or, thus, deduced growth mode or history can be derived, in particular if combined with airplane sampling in the troposphere at in situ growth conditions.

APA, Harvard, Vancouver, ISO, and other styles

22

Petit, Antoine, Sylvia Pokam, Frederic Mazen, Samuel Tardif, Didier Landru, Oleg Kononchuk, Nadia Ben Mohamed, Margie P. Olbinado, Alexander Rack, and Francois Rieutord. "Brittle fracture studied by ultra-high-speed synchrotron X-ray diffraction imaging." Journal of Applied Crystallography 55, no. 4 (July 30, 2022): 911–18. http://dx.doi.org/10.1107/s1600576722006537.

Full text

Abstract:

In situ investigations of cracks propagating at up to 2.5 km s−1 along an (001) plane of a silicon single crystal are reported, using X-ray diffraction megahertz imaging with intense and time-structured synchrotron radiation. The studied system is based on the Smart Cut process, where a buried layer in a material (typically Si) is weakened by microcracks and then used to drive a macroscopic crack (10−1 m) in a plane parallel to the surface with minimal deviation (10−9 m). A direct confirmation that the shape of the crack front is not affected by the distribution of the microcracks is provided. Instantaneous crack velocities over the centimetre-wide field of view were measured and showed an effect of local heating by the X-ray beam. The post-crack movements of the separated wafer parts could also be observed and explained using pneumatics and elasticity. A comprehensive view of controlled fracture propagation in a crystalline material is provided, paving the way for the in situ measurement of ultra-fast strain field propagation.

APA, Harvard, Vancouver, ISO, and other styles

23

Jørgensen, J. S., E. Ametova, G. Burca, G. Fardell, E. Papoutsellis, E. Pasca, K. Thielemans, et al. "Core Imaging Library - Part I: a versatile Python framework for tomographic imaging." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 379, no. 2204 (July 5, 2021): 20200192. http://dx.doi.org/10.1098/rsta.2020.0192.

Full text

Abstract:

We present the Core Imaging Library (CIL), an open-source Python framework for tomographic imaging with particular emphasis on reconstruction of challenging datasets. Conventional filtered back-projection reconstruction tends to be insufficient for highly noisy, incomplete, non-standard or multi-channel data arising for example in dynamic, spectral and in situ tomography. CIL provides an extensive modular optimization framework for prototyping reconstruction methods including sparsity and total variation regularization, as well as tools for loading, preprocessing and visualizing tomographic data. The capabilities of CIL are demonstrated on a synchrotron example dataset and three challenging cases spanning golden-ratio neutron tomography, cone-beam X-ray laminography and positron emission tomography. This article is part of the theme issue ‘Synergistic tomographic image reconstruction: part 2’.

APA, Harvard, Vancouver, ISO, and other styles

24

Ouaddah, Hadjer, Maike Becker, Thècle Riberi-Béridot, Maria Tsoutsouva, Vasiliki Stamelou, Gabrielle Regula, Guillaume Reinhart, et al. "X-ray Based in Situ Investigation of Silicon Growth Mechanism Dynamics—Application to Grain and Defect Formation." Crystals 10, no. 7 (June 30, 2020): 555. http://dx.doi.org/10.3390/cryst10070555.

Full text

Abstract:

To control the final grain structure and the density of structural crystalline defects in silicon (Si) ingots is still a main issue for Si used in photovoltaic solar cells. It concerns both innovative and conventional fabrication processes. Due to the dynamic essence of the phenomena and to the coupling of mechanisms at different scales, the post-mortem study of the solidified ingots gives limited results. In the past years, we developed an original system named GaTSBI for Growth at high Temperature observed by Synchrotron Beam Imaging, to investigate in situ the mechanisms involved during solidification. X-ray radiography and X-ray Bragg diffraction imaging (topography) are combined and implemented together with the running of a high temperature (up to 2073 K) solidification furnace. The experiments are conducted at the European Synchrotron Radiation Facility (ESRF). Both imaging techniques provide in situ and real time information during growth on the morphology and kinetics of the solid/liquid (S/L) interface, as well as on the deformation of the crystal structure and on the dynamics of structural defects including dislocations. Essential features of twinning, grain nucleation, competition, strain building, and dislocations during Si solidification are characterized and allow a deeper understanding of the fundamental mechanisms of its growth.

APA, Harvard, Vancouver, ISO, and other styles

25

Reinhart, Guillaume, Henri Nguyen-Thi, J. Gastaldi, Bernard Billia, Nathalie Mangelinck-Noël, Thomas Schenk, J. Härtwig, and J. Baruchel. "In Situ and Real Time Investigation of Directional Solidification of Al - Ni Alloys by Synchrotron Imaging." Materials Science Forum 508 (March 2006): 75–80. http://dx.doi.org/10.4028/www.scientific.net/msf.508.75.

Full text

Abstract:

Solidification is a dynamic phenomena and, as a consequence, it is of major interest to be able to investigate this process by in situ and real time observation. With synchrotron sources, this can be achieved by applying X-ray Imaging techniques (Radiography and Topography). Hence it is possible to follow the dynamical selection of solidification pattern on metallic alloys and to observe strain effects during growth process. In this paper, we present results obtained by using separately the two imaging techniques for the study of the microstructure formation during Al – Ni alloys solidification.

APA, Harvard, Vancouver, ISO, and other styles

26

Álvarez-Murga, M., J. P. Perrillat, Y. Le Godec, F. Bergame, J. Philippe, A. King, N. Guignot, M. Mezouar, and J. L. Hodeau. "Development of synchrotron X-ray micro-tomography under extreme conditions of pressure and temperature." Journal of Synchrotron Radiation 24, no. 1 (January 1, 2017): 240–47. http://dx.doi.org/10.1107/s1600577516016623.

Full text

Abstract:

X-ray tomography is a non-destructive three-dimensional imaging/microanalysis technique selective to a wide range of properties such as density, chemical composition, chemical states and crystallographic structure with extremely high sensitivity and spatial resolution. Here the development of in situ high-pressure high-temperature micro-tomography using a rotating module for the Paris–Edinburgh cell combined with synchrotron radiation is described. By rotating the sample chamber by 360°, the limited angular aperture of ordinary high-pressure cells is surmounted. Such a non-destructive high-resolution probe provides three-dimensional insight on the morphological and structural evolution of crystalline as well as amorphous phases during high pressure and temperature treatment. To demonstrate the potentials of this new experimental technique the compression behavior of a basalt glass is investigated by X-ray absorption tomography, and diffraction/scattering tomography imaging of the structural changes during the polymerization of C60 molecules under pressure is performed. Small size and weight of the loading frame and rotating module means that this apparatus is portable, and can be readily installed on most synchrotron facilities to take advantage of the diversity of three-dimensional imaging techniques available at beamlines. This experimental breakthrough should open new ways for in situ imaging of materials under extreme pressure–temperature–stress conditions, impacting diverse areas in physics, chemistry, geology or materials sciences.

APA, Harvard, Vancouver, ISO, and other styles

27

Chen, Weinong W., Matthew C. Hudspeth, Ben Claus, Niranjan D. Parab, John T. Black, Kamel Fezzaa, and S. N. Luo. "In situ damage assessment using synchrotron X-rays in materials loaded by a Hopkinson bar." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 372, no. 2015 (May 13, 2014): 20130191. http://dx.doi.org/10.1098/rsta.2013.0191.

Full text

Abstract:

Split Hopkinson or Kolsky bars are common high-rate characterization tools for dynamic mechanical behaviour of materials. Stress–strain responses averaged over specimen volume are obtained as a function of strain rate. Specimen deformation histories can be monitored by high-speed imaging on the surface. It has not been possible to track the damage initiation and evolution during the dynamic deformation inside specimens except for a few transparent materials. In this study, we integrated Hopkinson compression/tension bars with high-speed X-ray imaging capabilities. The damage history in a dynamically deforming specimen was monitored in situ using synchrotron radiation via X-ray phase contrast imaging. The effectiveness of the novel union between these two powerful techniques, which opens a new angle for data acquisition in dynamic experiments, is demonstrated by a series of dynamic experiments on a variety of material systems, including particle interaction in granular materials, glass impact cracking, single crystal silicon tensile failure and ligament–bone junction damage.

APA, Harvard, Vancouver, ISO, and other styles

28

Nagira, Tomoya, Hideyuki Yasuda, and Masato Yoshiya. "In Situ Observation of Solidification Behaviors in Carbon Steels Using Synchrotron X-ray Imaging." Materia Japan 53, no. 10 (2014): 467–70. http://dx.doi.org/10.2320/materia.53.467.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Patterson, Brian M., Nikolaus Cordes, Kevin Henderson, Robin Pacheco, Matthew Herman, Mertens, Xianghui Xiao, Jason Williams, and Nikhilesh Chawla. "In situ Synchrotron X-ray Tomographic Imaging of 3D Printed Materials During Uniaxial Loading." Microscopy and Microanalysis 22, S3 (July 2016): 1760–61. http://dx.doi.org/10.1017/s1431927616009648.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Xian, J. W., Mohd Arif Anuar Mohd Salleh, G. Zeng, S. A. Belyakov, Hideyuki Yasuda, Kazuhiro Nogita, and C. M. Gourlay. "Synchrotron Radiography of Sn-0.7Cu-0.05Ni Solder Solidification." Solid State Phenomena 273 (April 2018): 66–71. http://dx.doi.org/10.4028/www.scientific.net/ssp.273.66.

Full text

Abstract:

Sn-0.7Cu-0.05Ni is a widely used Pb-free solder that solidifies into a near-eutectic microstructure and a small fraction of primary Cu6Sn5. This paper overviews in-situ time-resolved imaging experiments on the solidification of Sn-0.7Cu-0.05Ni solder under three conditions: (i) directional solidification, (ii) continuous cooling in a near-uniform thermal field, and (iii) solder joint solidification on a Cu substrate. Primary Cu6Sn5 grow as rods along [0001] in each case but can also grow as X-shaped crystals in (iii). There are significant differences in eutectic growth due to nucleation difficulties for tin in conditions (ii) and (iii).

APA, Harvard, Vancouver, ISO, and other styles

31

Toda, Hiroyuki, Tomomi Ohgaki, Kentaro Uesugi, Koichi Makii, Yasuhiro Aruga, Toshikazu Akahori, Mitsuo Niinomi, and Toshiro Kobayashi. "In Situ Observation of Fracture of Aluminium Foam Using Synchrotron X-Ray Microtomography." Key Engineering Materials 297-300 (November 2005): 1189–95. http://dx.doi.org/10.4028/www.scientific.net/kem.297-300.1189.

Full text

Abstract:

Synchrotron X-ray microtomography has been utilized for the 3D characterisation of microstructure in the cell materials of aluminium foams. Tomographs, consisting of about 109 isotropic voxels with a maximum of 1.0µm edge, were collected at the SPring-8 in Japan. A combination of high-resolution phase contrast imaging technique and several state-of–the-art application techniques has enabled the quantitative image analyses of micro-pore, intermetallic particles and grain boundary as well as the assessment of their effects on compressive deformation and fracture behaviours in two kinds of aluminium foams.

APA, Harvard, Vancouver, ISO, and other styles

32

Billia, Bernard, Henri Nguyen-Thi, Guillaume Reinhart, Nathalie Mangelinck-Noël, J. Gastaldi, Thomas Schenk, J. Hartwig, et al. "Studies by In Situ and Real-Time Synchrotron Imaging of Interface Dynamics and Defect Formation in Solidification Processing." Advances in Science and Technology 46 (October 2006): 1–10. http://dx.doi.org/10.4028/www.scientific.net/ast.46.1.

Full text

Abstract:

The solid microstructure built in the solid governs the properties of materials elaborated from the melt. In order to clarify the dynamical mechanisms controlling solidification processing, we use in situ and real-time synchrotron X-ray radiography at ESRF (European Synchrotron Radiation Facility) to analyze microstructure formation in thin aluminum alloys solidified in the Bridgman facility installed at the ID19 beamline. During directional solidification of Al - 3.5 wt% Ni alloys, global mechanical constraints induced by the shape are found to act on the solid microstructure. In particular, radiography videos of dendritic growth show disorientations of sidebranches induced by mechanical stresses. In the solidification of AlPdMn quasicrystals, live imaging reveals that facetted growth proceeds by the lateral motion of ledges at the solid-melt interface. When the solidification rate is increased, the kinetic undercooling becomes sufficient for grain nucleation and growth in the liquid. These grains develop specific features that can be attributed to grain competition and concomitant poisoning of growth caused by the rejection of aluminum in the melt.

APA, Harvard, Vancouver, ISO, and other styles

33

Feng, Shikang, Enzo Liotti, and Patrick S. Grant. "X-ray Imaging of Alloy Solidification: Crystal Formation, Growth, Instability and Defects." Materials 15, no. 4 (February 10, 2022): 1319. http://dx.doi.org/10.3390/ma15041319.

Full text

Abstract:

Synchrotron and laboratory-based X-ray imaging techniques have been increasingly used for in situ investigations of alloy solidification and other metal processes. Several reviews have been published in recent years that have focused on the development of in situ X-ray imaging techniques for metal solidification studies. Instead, this work provides a comprehensive review of knowledge provided by in situ X-ray imaging for improved understanding of solidification theories and emerging metal processing technologies. We first review insights related to crystal nucleation and growth mechanisms gained by in situ X-ray imaging, including solute suppressed nucleation theory of α-Al and intermetallic compound crystals, dendritic growth of α-Al and the twin plane re-entrant growth mechanism of faceted Fe-rich intermetallics. Second, we discuss the contribution of in situ X-ray studies in understanding microstructural instability, including dendrite fragmentation induced by solute-driven, dendrite root re-melting, instability of a planar solid/liquid interface, the cellular-to-dendritic transition and the columnar-to-equiaxed transition. Third, we review investigations of defect formation mechanisms during near-equilibrium solidification, including porosity and hot tear formation, and the associated liquid metal flow. Then, we discuss how X-ray imaging is being applied to the understanding and development of emerging metal processes that operate further from equilibrium, such as additive manufacturing. Finally, the outlook for future research opportunities and challenges is presented.

APA, Harvard, Vancouver, ISO, and other styles

34

Kong, Huating, Jichao Zhang, Jiang Li, Jian Wang, Hyun-Joon Shin, Renzhong Tai, Qinglong Yan, et al. "Genetically encoded X-ray cellular imaging for nanoscale protein localization." National Science Review 7, no. 7 (April 2, 2020): 1218–27. http://dx.doi.org/10.1093/nsr/nwaa055.

Full text

Abstract:

Abstract Spatial resolution defines the physical limit of microscopes for probing biomolecular localization and interactions in cells. Whereas synchrotron-based X-ray microscopy (XRM) represents a unique approach for imaging a whole cell with nanoscale resolution due to its intrinsic nanoscale resolution and great penetration ability, existing approaches to label biomolecules rely on the use of exogenous tags that are multi-step and error-prone. Here, we repurpose engineered peroxidases as genetically encoded X-ray-sensitive tags (GXET) for site-specific labeling of protein-of-interest in mammalian cells. We find that 3,3′-diaminobenzidine (DAB) polymers that are in-situ catalytically formed by fusion-expressed peroxidases are visible under XRM. Using this new tag, we imaged the protein location associated with the alteration of a DNA-methylation pathway with an ultra-high resolution of 30 nanometers. Importantly, the excellent energy resolution of XRM enables multicolor imaging using different peroxidase tags. The development of GXET enlightens the way to nanoscopic imaging for biological studies.

APA, Harvard, Vancouver, ISO, and other styles

35

Zhang, Jiao, Qing Dong, Yong Bing Dai, Bao De Sun, and Hong Lan Xie. "Study of Fragment Behavior during Columnar-Equiaxed Transition of Hypoeutectic Alloy with Synchrotron Radiation." Materials Science Forum 706-709 (January 2012): 1743–48. http://dx.doi.org/10.4028/www.scientific.net/msf.706-709.1743.

Full text

Abstract:

In the present work, solidification of hypoeutectic, eutectic and hypereutectic Al-Cu alloys was illustrated by synchrotron X ray imaging, and the CET of hypoeutectic alloy was picked out to thorough investigated. The mechanism of hypoeutectic dendrites fragment behaviors among the nucleation area was studied by in-situ imaging and first-principles computation. The results show that the density difference between the fragments and the enriched melt leads to the movement of the fragments. The ejected fragments contributed to the columnar-eutectic transition and expanded the breadth of mush zone in front of the solid/liquid interface.

APA, Harvard, Vancouver, ISO, and other styles

36

Wang, TongMin, JingJing Xu, Jun Li, WanXia Huang, ShengChu Liu, and TingJu Li. "In situ study on dendrite growth of metallic alloy by a synchrotron radiation imaging technology." Science China Technological Sciences 53, no. 5 (April 15, 2010): 1278–84. http://dx.doi.org/10.1007/s11431-010-0087-3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Li, Chen, Ning Zhu, Heather N. Emady, and Lifeng Zhang. "Synchrotron-based X-ray in-situ imaging techniques for advancing the understanding of pharmaceutical granulation." International Journal of Pharmaceutics 572 (December 2019): 118797. http://dx.doi.org/10.1016/j.ijpharm.2019.118797.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Patterson, Brian M., Nikolaus L. Cordes, Kevin Henderson, Jason J. Williams, Tyler Stannard, Sudhanshu S. Singh, Angel Rodriguez Ovejero, Xianghui Xiao, Mathew Robinson, and Nikhilesh Chawla. "In situ X-ray synchrotron tomographic imaging during the compression of hyper-elastic polymeric materials." Journal of Materials Science 51, no. 1 (September 8, 2015): 171–87. http://dx.doi.org/10.1007/s10853-015-9355-8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Chen, Yunhui, Samuel J. Clark, Chu Lun Alex Leung, Lorna Sinclair, Sebastian Marussi, Margie P. Olbinado, Elodie Boller, Alexander Rack, Iain Todd, and Peter D. Lee. "In-situ Synchrotron imaging of keyhole mode multi-layer laser powder bed fusion additive manufacturing." Applied Materials Today 20 (September 2020): 100650. http://dx.doi.org/10.1016/j.apmt.2020.100650.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Meng, Jiang Ying, Min An Chen, Shuai Liu, Fu Cheng Zhang, and Li He Qian. "3D Investigation of Fatigue Crack Morphology and Crack Growth of Iron-Based Materials via Synchrotron X-Ray CT." Materials Science Forum 833 (November 2015): 154–57. http://dx.doi.org/10.4028/www.scientific.net/msf.833.154.

Full text

Abstract:

The present paper addresses a 3D investigation of a complicated fatigue crack profile and crack growth behavior in cast Hadfield high manganese steel by in-situ X-ray computed tomography (CT) experiments. In-situ loading experiments were performed on fatigue pre-cracked samples at the X-ray beamline BL13W1 of Shanghai synchrotron radiation facility in China, and high-resolution phase contrast imaging technique was applied to obtain the 3D images. Based on the rendered 3D images at varied loading levels, various crack features and the interactions of the fatigue crack with casting pores were identified and analyzed.

APA, Harvard, Vancouver, ISO, and other styles

41

Komizo, Yuichi, Hidenori Terasaki, Mitsuharu Yonemura, and Takahiro Osuki. "In Situ Observation of Weld Solidification and Phase Transformation Process Using Synchrotron Radiation." Materials Science Forum 539-543 (March 2007): 3820–25. http://dx.doi.org/10.4028/www.scientific.net/msf.539-543.3820.

Full text

Abstract:

In order to understand the microstructure changes during welding processes , kinetic information about the phase transformation is essential. In our research group, in-situ observation systems consisting of undulator beam and imaging plate and two dimensional pixel detector have recently been used. These make it possible that phase transformation can be identified in real-time under the condition of directional-oriented solidification . In the present work, a combination of analyzing method: the in-situ observation system by X-ray diffraction technique using intense synchrotron radiation, and morphological observation by high-temperature laser scanning confocal microscopy is suggested to analyze the phase transformation during the welding process. Using the results acquired by these analysis methods, phase evolution of hypereutectoid carbon steel, during fusion welding was analyzed. The primary phase was directly identified as an austenite phase. Precipitation of pearlite phase was observed followed by the martensitic transformation.

APA, Harvard, Vancouver, ISO, and other styles

42

Jarrar, Zaher, Riyadh Al-Raoush, Khalid Alshibli, and Jongwon Jung. "Dynamic 3D imaging of gas hydrate kinetics using synchrotron computed tomography." E3S Web of Conferences 205 (2020): 11004. http://dx.doi.org/10.1051/e3sconf/202020511004.

Full text

Abstract:

The availability of natural gas hydrates and the continuing increase in energy demand, motivated researchers to consider gas hydrates as a future source of energy. Fundamental understanding of hydrate dissociation kinetics is essential to improve techniques of gas production from natural hydrates reservoirs. During hydrate dissociation, bonds between water (host molecules) and gas (guest molecules) break and free gas is released. This paper investigates the evolution of hydrate surface area, pore habit, and tortuosity using in-situ imaging of Xenon (Xe) hydrate formation and dissociation in porous media with dynamic three-dimensional synchrotron microcomputed tomography (SMT). Xe hydrate was formed inside a high- pressure, low-temperature cell and then dissociated by thermal stimulation. During formation and dissociation, full 3D SMT scans were acquired continuously and reconstructed into 3D volume images. Each scan took only 45 seconds to complete, and a total of 60 scans were acquired. Hydrate volume and surface area evolution were directly measured from the SMT scans. At low hydrate saturation, the predominant pore habit was surface coating, while the predominant pore habit at high hydrate saturation was pore filling. A second-degree polynomial can be used to predict variation of tortuosity with hydrate saturation with an R2 value of 0.997.

APA, Harvard, Vancouver, ISO, and other styles

43

Patel, Drasti, Hamish Thomas Reid, Lara Rasha, Matilda Fransson, Ludovic Broche, and Paul R. Shearing. "In-Situ/Operando X-Ray CT Characterisation of Lithium-Ion Pouch Cells during Thermal Failure." ECS Meeting Abstracts MA2022-01, no. 2 (July 7, 2022): 349. http://dx.doi.org/10.1149/ma2022-012349mtgabs.

Full text

Abstract:

The safety of concerns of lithium-ion batteries continues to be a prevalent obstacle toward their widespread application from vehicle electrification to space exploration. Aside from the highly oxidising and reducing electrode materials, their safety is compounded by an inherent drawback of poor heat dissipation [1]. High-speed imaging with in-situ/operando X-ray CT has been used extensively to study various lithium-ion battery safety features and failure mechanisms [2][3], including thermal failure [4]. However, these are exclusively using synchrotron X-ray sources which are limited in terms of both access and data recording capabilities: high frame rates require the data collection window to be restricted to a few seconds. During lithium-ion battery failure, there are several changes to a cell structure leading up to thermal runaway (TR) which can take minutes, and as a result are often missed. Here, we present an instrument that simulates thermal failure for lab-based radiography at slower imaging speeds and longer recording lengths, which has been validated by correlative synchrotron measurements. The failure mechanisms within a fully charged (100 % SOC, 4.2 V) commercially available LiCoO2 cathode and graphite anode pouch cell (651628-2C, AA Portable Power Corp) rated at 210 mAh are investigated. Three samples are studied using lab-based radiography at a frame rate of 3.75 fps with a 16.1 µm pixel resolution and, for comparison, an additional three samples are studied using synchrotron X-ray sources at a higher speed of 20,000 fps with a 13.3 µm pixel resolution. For the six samples investigated, the total time taken from a start temperature of 80 °C to TR is approximately 20 minutes and the onset temperatures for TR are recorded within the range of 196 °C to 210 °C. The beginning of the TR event (defined as a sample temperature increase greater than 15 °C s-1), where the effects to the electrode structure are the most catastrophic, lasts for approximately 1 s. Operando radiographic images during this event reveal that the structural displacement of electrode layers begins at the centre of the cell and propagates outwards in a wave-like motion. The electrode displacement, as a result, is quantified by cross-correlating Gabor signals and spatiotemporal mapping [5] in both types of datasets. For the lab-based radiography, data is recorded from the start temperature to TR (lasting approximately 20 minutes), and reactions such as the electrolyte decomposition, ca. 105 °C, and separator melting, ca.130 °C are characterised in the context of electrode deformation and gas evolution. Investigations of pre- and post-failure 3D X-ray CT images further verify the uniformity of the pristine (or pre-failure) cell assembly as well as the estimated post-failure behaviour between samples. Finally, by comparison with correlative synchrotron measurements, the instrument for inducing thermal failure for lab-based X-ray CT is proven to be a viable and more accessible method to investigate thermal failure within a 210 mAh pouch cell. While synchrotron data has a higher-speed imaging advantage, it is limited to only recording the short TR event at a high temporal resolution. Whereas continuous imaging in lab-based radiography has the benefit of measuring the slower architectural changes taking place up to TR, albeit at a marginally lower spatial resolution. References [1] D. H. Doughty and E. P. Roth, Interface Mag., 21, 37–44 (2012). [2] D. P. Finegan, M. Scheel, J. B. Robinson, B. Tjaden, M. Di Michiel, G. Hinds, D. J. L. Brett, and P. R. Shearing, Phys. Chem. Chem. Phys., 18, 30912–30919 (2016). [3] D. P. Finegan, M. Scheel, J. B. Robinson, B. Tjaden, I. Hunt, T. J. Mason, J. Millichamp, M. Di Michiel, G. J. Offer, G. Hinds, D. J. L. Brett, and P. R. Shearing, Nat. Commun., 6, 6924 (2015). [4] M. T. M. Pham, J. J. Darst, D. P. Finegan, J. B. Robinson, T. M. M. Heenan, M. D. R. Kok, F. Iacoviello, R. Owen, W. Q. Walker, O. V. Magdysyuk, T. Connolley, E. Darcy, G. Hinds, D. J. L. Brett, and P. R. Shearing, J. Power Sources, 470, 228039 (2020). [5] A. N. P. Radhakrishnan, M. Buckwell, M. Pham, D. P. Finegan, A. Rack, G. Hinds, D. J. L. Brett, and P. R. Shearing, ChemRxiv (2021).

APA, Harvard, Vancouver, ISO, and other styles

44

Zhang, Yuezhou, Dave Hollis, Rosie Ross, Tim Snow, Nick J. Terrill, Yongjie Lu, Wen Wang, John Connelly, Gianluca Tozzi, and Himadri S. Gupta. "Investigating the Fibrillar Ultrastructure and Mechanics in Keloid Scars Using In Situ Synchrotron X-ray Nanomechanical Imaging." Materials 15, no. 5 (March 1, 2022): 1836. http://dx.doi.org/10.3390/ma15051836.

Full text

Abstract:

Fibrotic scarring is prevalent in a range of collagenous tissue disorders. Understanding the role of matrix biophysics in contributing to fibrotic progression is important to develop therapies, as well as to elucidate biological mechanisms. Here, we demonstrate how microfocus small-angle X-ray scattering (SAXS), with in situ mechanics and correlative imaging, can provide quantitative and position-resolved information on the fibrotic matrix nanostructure and its mechanical properties. We use as an example the case of keloid scarring in skin. SAXS mapping reveals heterogeneous gradients in collagen fibrillar concentration, fibril pre-strain (variations in D-period) and a new interfibrillar component likely linked to proteoglycans, indicating evidence of a complex 3D structure at the nanoscale. Furthermore, we demonstrate a proof-of-principle for a diffraction-contrast correlative imaging technique, incorporating, for the first time, DIC and SAXS, and providing an initial estimate for measuring spatially resolved fibrillar-level strain and reorientation in such heterogeneous tissues. By application of the method, we quantify (at the microscale) fibrillar reorientations, increases in fibrillar D-period variance, and increases in mean D-period under macroscopic tissue strains of ~20%. Our results open the opportunity of using synchrotron X-ray nanomechanical imaging as a quantitative tool to probe structure–function relations in keloid and other fibrotic disorders in situ.

APA, Harvard, Vancouver, ISO, and other styles

45

Zhang, Fan, Andrew Allen, Lyle Levine, Gabrielle Long, Jan Ilavsky, Joshua Hammons, and Pete Jemian. "In Situ Materials Characterization across Atomic and Microstructure Lengthscales." Acta Crystallographica Section A Foundations and Advances 70, a1 (August 5, 2014): C1072. http://dx.doi.org/10.1107/s205327331408927x.

Full text

Abstract:

Advanced materials exhibit complex, hierarchical, and multiscale microstructures that control their performance. Today, optimization of these microstructures requires iterative, ex situ studies using multiple independent instruments with different samples. To address many of the grand challenges facing the material research community, it is desirable to correlate material performance under realistic processing and operating conditions with in situ characterization of material structures across atomic and microstructural length scales. To meet this need, we have made progress in recent years in developing a suite of materials-measurement techniques that combines ultra-small angle X-ray scattering, small-angle X-ray scattering, X-ray diffraction, X-ray photon correlation spectroscopy, and X-ray imaging. When making use of high energy x rays from a third generation synchrotron source, this combined suite of techniques not only enables investigation of thick, complex materials under real operating/ processing conditions, but also allows robust structural characterization over 7 decades of structural and microstructural feature sizes, from sub-angstrom to millimeters. Depending on the scattering characteristics of the material, it can cover an unprecedented 11 decades in scattering intensity. This arrangement also allows the combination of measurement techniques be determined solely by the user's needs, allowing an unparalleled flexibility in addressing any set of microstructure, structure and dynamics material-measurement requirements. In this presentation, we will focus on various considerations required to make this combined technique possible, and use data from a series of in situ studies of aluminum alloys as examples to demonstrate the unique capability of this instrument. We will also discuss the potential impact that multi-bend achromat lattice, a concept being embraced by the worldwide synchrotron community, has on this technique.

APA, Harvard, Vancouver, ISO, and other styles

46

Tan, Dong Yue, and Jia Wei Mi. "High Speed Imaging Study of the Dynamics of Ultrasonic Bubbles at a Liquid-Solid Interface." Materials Science Forum 765 (July 2013): 230–34. http://dx.doi.org/10.4028/www.scientific.net/msf.765.230.

Full text

Abstract:

High speed imaging, including the ultrafast synchrotron X-ray imaging facility at the beamline 32-ID-B of the Advanced Photon Source (APS), was used to study in-situ (1) the dynamics of ultrasonic bubbles inside a water suspension with an acoustic field of varied pressure; and (2) the interaction of a pulsing bubble at a primary dendrite arm tip inside a succinonitrile-1wt% camphor organic transparent alloy. A simple finite element based model was developed to simulate the stress distribution inside the dendrite due to the pulsing of the ultrasonic bubble, providing more evidence for understanding quantitatively the ultrasonic wave induced dendrite fragmentation phenomenon.

APA, Harvard, Vancouver, ISO, and other styles

47

Genuzio, Francesca, Tomasz Giela, Matteo Lucian, Tevfik Onur Menteş, Carlo Alberto Brondin, Giuseppe Cautero, Piotr Mazalski, Stefano Bonetti, Jozef Korecki, and Andrea Locatelli. "A UHV MOKE magnetometer complementing XMCD-PEEM at the Elettra Synchrotron." Journal of Synchrotron Radiation 28, no. 3 (March 30, 2021): 995–1005. http://dx.doi.org/10.1107/s1600577521002885.

Full text

Abstract:

We report on a custom-built UHV-compatible Magneto-Optical Kerr Effect (MOKE) magnetometer for applications in surface and materials sciences, operating in tandem with the PhotoEmission Electron Microscope (PEEM) endstation at the Nanospectroscopy beamline of the Elettra synchrotron. The magnetometer features a liquid-nitrogen-cooled electromagnet that is fully compatible with UHV operation and produces magnetic fields up to about 140 mT at the sample. Longitudinal and polar MOKE measurement geometries are realized. The magneto-optical detection is based on polarization analysis using a photoelastic modulator. The sample manipulation system is fully compatible with that of the PEEM, making it possible to exchange samples with the beamline endstation, where complementary X-ray imaging and spectroscopy techniques are available. The magnetometer performance is illustrated by experiments on cobalt ultra-thin films, demonstrating close to monolayer sensitivity. The advantages of combining in situ growth, X-ray Magnetic Circular Dichroism imaging (XMCD-PEEM) and MOKE magnetometry into a versatile multitechnique facility are highlighted.

APA, Harvard, Vancouver, ISO, and other styles

48

Flenner, Silja, Malte Storm, Adam Kubec, Elena Longo, Florian Döring, Daniël M. Pelt, Christian David, Martin Müller, and Imke Greving. "Pushing the temporal resolution in absorption and Zernike phase contrast nanotomography: enabling fast in situ experiments." Journal of Synchrotron Radiation 27, no. 5 (July 30, 2020): 1339–46. http://dx.doi.org/10.1107/s1600577520007407.

Full text

Abstract:

Hard X-ray nanotomography enables 3D investigations of a wide range of samples with high resolution (<100 nm) with both synchrotron-based and laboratory-based setups. However, the advantage of synchrotron-based setups is the high flux, enabling time resolution, which cannot be achieved at laboratory sources. Here, the nanotomography setup at the imaging beamline P05 at PETRA III is presented, which offers high time resolution not only in absorption but for the first time also in Zernike phase contrast. Two test samples are used to evaluate the image quality in both contrast modalities based on the quantitative analysis of contrast-to-noise ratio (CNR) and spatial resolution. High-quality scans can be recorded in 15 min and fast scans down to 3 min are also possible without significant loss of image quality. At scan times well below 3 min, the CNR values decrease significantly and classical image-filtering techniques reach their limitation. A machine-learning approach shows promising results, enabling acquisition of a full tomography in only 6 s. Overall, the transmission X-ray microscopy instrument offers high temporal resolution in absorption and Zernike phase contrast, enabling in situ experiments at the beamline.

APA, Harvard, Vancouver, ISO, and other styles

49

Magnier, Lucile, Lauréline Lecarme, Fannie Alloin, Eric Maire, Andrew King, Renaud Bouchet, Alessandro Tengattini, and Didier Devaux. "In Situ Imaging Comparison of Lithium Electrodeposits By Neutron and X-Ray (Synchrotron and Laboratory) Tomography." ECS Meeting Abstracts MA2021-02, no. 54 (October 19, 2021): 1808. http://dx.doi.org/10.1149/ma2021-02541808mtgabs.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Parab, Niranjan, Cang Zhao, Ross Cunningham, Luis I. Escano, Kamel Fezzaa, Anthony Rollett, Lianyi Chen, and Tao Sun. "In situ Characterization of Laser Powder Bed Fusion Using High-Speed Synchrotron X-ray Imaging Technique." Microscopy and Microanalysis 25, S2 (August 2019): 2566–67. http://dx.doi.org/10.1017/s1431927619013564.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Journal articles on the topic 'Synchrotron in situ imaging'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles