Academic literature on the topic 'Interphase'

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Journal articles on the topic "Interphase"

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Ghasem Zadeh Khorasani, Media, Anna-Maria Elert, Vasile-Dan Hodoroaba, Leonardo Agudo Jácome, Korinna Altmann, Dorothee Silbernagl, and Heinz Sturm. "Short- and Long-Range Mechanical and Chemical Interphases Caused by Interaction of Boehmite (γ-AlOOH) with Anhydride-Cured Epoxy Resins." Nanomaterials 9, no. 6 (June 4, 2019): 853. http://dx.doi.org/10.3390/nano9060853.

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Understanding the interaction between boehmite and epoxy and the formation of their interphases with different mechanical and chemical structures is crucial to predict and optimize the properties of epoxy-boehmite nanocomposites. Probing the interfacial properties with atomic force microscopy (AFM)-based methods, especially particle-matrix long-range interactions, is challenging. This is due to size limitations of various analytical methods in resolving nanoparticles and their interphases, the overlap of interphases, and the effect of buried particles that prevent the accurate interphase property measurement. Here, we develop a layered model system in which the epoxy is cured in contact with a thin layer of hydrothermally synthesized boehmite. Different microscopy methods are employed to evaluate the interfacial properties. With intermodulation atomic force microscopy (ImAFM) and amplitude dependence force spectroscopy (ADFS), which contain information about stiffness, electrostatic, and van der Waals forces, a soft interphase was detected between the epoxy and boehmite. Surface potential maps obtained by scanning Kelvin probe microscopy (SKPM) revealed another interphase about one order of magnitude larger than the mechanical interphase. The AFM-infrared spectroscopy (AFM-IR) technique reveals that the soft interphase consists of unreacted curing agent. The long-range electrical interphase is attributed to the chemical alteration of the bulk epoxy and the formation of new absorption bands.
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Lee, Sang Jin, Chung Hyo Lee, and Jong Hee Hwang. "Toughening of Ceramic Composite Designed by Silica-Based Transformation Weakening Interphases." Key Engineering Materials 287 (June 2005): 358–66. http://dx.doi.org/10.4028/www.scientific.net/kem.287.358.

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A new concept for achieving graceful failure in oxide composites is introduced. It is based on crack deflection in a weak interphase between a matrix and reinforcement (e.g. fiber), or in a laminated composite. The interphase can be phase transformation weakened by volume contraction and/or unit cell shape change. Microcracking induced by a displacive, crystallographic phase transformation in silica-based interphases resulted in increase in the toughness of the bulk composites. In the present study, mullite/cordierite laminates with b®a-cristobalite (SiO2) transformation weakened interphase, and alumina matrix fibrous monolith with metastable hexacelsian (BaAl2Si2O8) interphases were investigated for interphase debonding behavior. In mechanical test, the laminates showed step-wise load drop behavior dependent on a grain size of b-cristobalite. In particular, in the fibrous monolith design, the load-deflection curve showed unusual plastic-like behavior with reasonable work of fracture.
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Wang, Meng, and Xiaochen Hang. "Finite Element Analysis of Residual Stress Distribution Patterns of Prestressed Composites Considering Interphases." Materials 16, no. 4 (February 5, 2023): 1345. http://dx.doi.org/10.3390/ma16041345.

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New finite element analysis procedures are developed in this study to obtain the precise stress distribution patterns of prestressed composites. Within the FEM procedures, an equivalent thermal method is modified to realize the prestress application, and a multi-step methodology is developed to consider coupling effects of polymer curing and prestress application. Thereafter, the effects of interphases’ properties, including the elastic modulus and coefficient of thermal expansion (CTE), on the stress distribution patterns are revealed. Analytical methods for residual stress prediction are modified in this study to demonstrate the finite element analysis procedures. From the residual stress results, it is found that the increase in the prestress level tends to contribute to the initiation of interphase debonding. The increase in the elastic modulus or CTE of the interphase results in very large circumferential and axial stress values appearing in the interphase. When the elastic modulus in the interphase is heterogeneous, the predicted stress values in the fiber and matrix are similar to the results predicted with the equivalent elastic modulus of the interphases. However, the heterogeneous elastic modulus results in serious circumferential and axial stress gradients in the interphase.
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Ferrara, Chiara, Riccardo Ruffo, and Piercarlo Mustarelli. "The Importance of Interphases in Energy Storage Devices: Methods and Strategies to Investigate and Control Interfacial Processes." Physchem 1, no. 1 (April 13, 2021): 26–44. http://dx.doi.org/10.3390/physchem1010003.

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Extended interphases are playing an increasingly important role in electrochemical energy storage devices and, in particular, in lithium-ion and lithium metal batteries. With this in mind we initially address the differences between the concepts of interface and interphase. After that, we discuss in detail the mechanisms of solid electrolyte interphase (SEI) formation in Li-ion batteries. Then, we analyze the methods for interphase characterization, with emphasis put on in-situ and operando approaches. Finally, we look at the near future by addressing the issues underlying the lithium metal/electrolyte interface, and the emerging role played by the cathode electrolyte interphase when high voltage materials are employed.
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Bian, L. C., W. Liu, and J. Pan. "Probability of Debonding and Effective Elastic Properties of Particle-Reinforced Composites." Journal of Mechanics 33, no. 6 (January 24, 2017): 789–96. http://dx.doi.org/10.1017/jmech.2017.4.

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AbstractIn this paper, the effective properties of particle-reinforced composites with a weakened interphase are investigated. The particle and interphase are regarded as an equivalent-inclusion, and the interphase zone around the particle is modeled as a linear elastic spring layer. A modified micro-mechanics model is proposed to obtain the effective elastic modulus. Moreover, a statistical debonding criterion is proposed to characterize the varying probability of the evolution of interphase debonding. Numerical examples are considered to illustrate the effect of imperfect interphases on the effective properties of particle-reinforced composites. It is found that the effective elastic properties obtained in the present work are in a good agreement with the existing data from the literatures.
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Lee, Sang Jin, and Sang Ho Lee. "High-Toughening Alumina Composites Weakened by Metastable Hexacelsian Interphases." Key Engineering Materials 345-346 (August 2007): 721–24. http://dx.doi.org/10.4028/www.scientific.net/kem.345-346.721.

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New laminate design for improved toughness in hexacelsian-alumina composite is introduced. The composite is based on crack deflection in a weak interphase in the alumina matrix and hexacelsian interphase. The strength and toughness of the laminated composite were studied both qualitatively by electronic microscopy and measuring flexure strength. The metastable hexacelsian interphases had partially microcracks to provide crack deflection in the composite, and the crack deflection noticeably proceeded along the meta-stable hexacelsian interphase. Load-deflection curve for the laminate showed improved work of fracture of 2.23 kJ/m2.
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Yoshida, Katsumi, Hiroyuki Akimoto, Akihiro Yamauchi, Toyohiko Yano, Masaki Kotani, and Toshio Ogasawara. "Interface Formation of Unidirectional SiCf/SiC Composites by Electrophoretic Deposition Method." Key Engineering Materials 617 (June 2014): 213–16. http://dx.doi.org/10.4028/www.scientific.net/kem.617.213.

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C-and BN-interphases on SiC fibers for unidirectional SiCf/SiC composites were formed by EPD process, and their microstructure and mechanical properties were investigated. Whereas the C-SiCf/SiC composites showed a pseudo-ductile fracture behavior with large amount of fiber pullout, the BN-SiCf/SiC composites fractured in a brittle manner without fiber pullout in spite of sufficient thickness of BN interphase. It is inferred from the results of EDS that sintering additives would react with h-BN-interphase, and the interphase did not act effectively for toughening the SiCf/SiC composites.
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El Khoury, Diana, Richard Arinero, Jean-Charles Laurentie, Mikhaël Bechelany, Michel Ramonda, and Jérôme Castellon. "Electrostatic force microscopy for the accurate characterization of interphases in nanocomposites." Beilstein Journal of Nanotechnology 9 (December 7, 2018): 2999–3012. http://dx.doi.org/10.3762/bjnano.9.279.

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The unusual properties of nanocomposites are commonly explained by the structure of their interphase. Therefore, these nanoscale interphase regions need to be precisely characterized; however, the existing high resolution experimental methods have not been reliably adapted to this purpose. Electrostatic force microscopy (EFM) represents a promising technique to fulfill this objective, although no complete and accurate interphase study has been published to date and EFM signal interpretation is not straightforward. The aim of this work was to establish accurate EFM signal analysis methods to investigate interphases in nanodielectrics using three experimental protocols. Samples with well-known, controllable properties were designed and synthesized to electrostatically model nanodielectrics with the aim of “calibrating” the EFM technique for future interphase studies. EFM was demonstrated to be able to discriminate between alumina and silicon dioxide interphase layers of 50 and 100 nm thickness deposited over polystyrene spheres and different types of matrix materials. Consistent permittivity values were also deduced by comparison of experimental data and numerical simulations, as well as the interface state of silicone dioxide layers.
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Sancaktar, E., and P. Zhang. "Nonlinear Viscoelastic Modelling of the Fiber-Matrix Interphase in Composite Materials." Journal of Mechanical Design 112, no. 4 (December 1, 1990): 605–19. http://dx.doi.org/10.1115/1.2912653.

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A nonlinear viscoelastic analysis of the carbon fiber-thermoset (or thermoplastic) matrix interphase is presented. The second order nonlinear partial differential equation governing the state of stress at the fiber-matrix interphase is solved by using an iterative scheme involving successive differentiation and Taylor expansions to satisfy the boundary conditions. Additional iteration is used for the case with nonlinear viscoelastic matrix material. The results reveal that the thickness and material properties of the interphase have strong influence in reducing the shear stress magnitudes and distribution along the fiber. The analysis and results provide valuable insight into the application and interpretation of the single fiber tension (fragmentation) test procedure and the design of “tailored interphases.”
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Singh, Manohar, and Jeewan Chandra Pandey. "Probing thermal conductivity of interphase in epoxy alumina nanocomposites." Polymers and Polymer Composites 30 (January 2022): 096739112210774. http://dx.doi.org/10.1177/09673911221077489.

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The objective of this research is to determine the thermal conductivity of the interphase in epoxy alumina nanocomposites. First, TPS 500 measures the thermal conductivity of epoxy alumina nanocomposite samples. Following that, a numerical model based on the finite element method was developed to estimate the effective thermal conductivity of epoxy alumina nanocomposites over a range of assumed interphase thermal conductivity values. Finally, an algorithm is devised to extract the interphase’s thermal conductivity by combining simulation and experiment results. Interphase was found to have significantly higher thermal conductivity than the base polymer. A comprehensive analysis is presented to shed light on the observed increase in interphase thermal conductivity. The findings of this study will be critical for further investigation of heat transfer in epoxy alumina nanocomposites via modeling and simulation studies.
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Dissertations / Theses on the topic "Interphase"

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Zhang, Jie. "Multifunctional composite interphase." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2012. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-88763.

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In this work, carbon nanotubes were deposited onto the insulative glass fibre surface to form a semiconductive network. Utilizing the unique properties of CNTs network, a multifunctional composite interphase could be achieved. The interfacial adhesion strength was improved by CNTs distributed in the interphase. The semiconductive interphase have been used as a chemical/phaysical sensor, strain sensor and microswitch.
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Abdennur, Nezar(Nezar Alexander). "Unfolding genome organization in interphase." Thesis, Massachusetts Institute of Technology, 2019. https://hdl.handle.net/1721.1/122537.

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Thesis: Ph. D., Massachusetts Institute of Technology, Computational and Systems Biology Program, 2019
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 147-166).
Genomic contact frequency maps obtained from high throughput chromosome conformation capture technologies have revealed several organizing patterns of mammalian interphase chromosomes, including self-interacting topologically associating domains (TADs) which are believed to function as coherent gene regulatory neighborhoods. However, the mechanisms driving these patterns are still unknown. In this thesis, I describe and apply computational methods that test the predictions of a recently proposed loop extrusion model in the context of experimental perturbations of its key molecular players. In the first project I introduce a new data model, file format, and supporting software package to cope with the challenges of the increasing size and resolution of Hi-C datasets, including a parallel and scalable matrix balancing implementation.
In the second project, I show that depletion of the Structural Maintenance of Chromosomes (SMC) complex, cohesin, in non-cycling mouse liver cells completely eliminates the appearance of TADs in Hi-C maps while preserving genome compartmentalization. In the third project, I demonstrate that depletion of a closely related SMC complex, condensin II, which plays a major role in mitotic chromosome condensation but is also found in the nucleus in interphase, has no impact on gene expression or the maintenance of genome organization in non-dividing cells. In the final project, I compile further evidence for loop extrusion in interphase by employing a combination of polymer simulations and meta-analysis of several Hi-C studies that performed targeted perturbations to modulate the presence of cohesin and the insulator protein, CTCF, on chromatin.
Together, these projects show that rather than being folded in a hierarchical fashion, mammalian genomes in interphase are organized by at least two distinct and antagonistic processes: global compartmental segregation dependent on epigenetic state, and local compaction dependent on cohesin. The latter process is likely to be the dynamic extrusion of chromatin loops driven by a yet-to-be-characterized motor activity of cohesin complexes and limited by DNA-bound CTCF extrusion barriers.
by Nezar Abdennur.
Ph. D.
Ph.D. Massachusetts Institute of Technology, Computational and Systems Biology Program
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Didier, Yves. "In-situ interphase formation in polymer composites." Thesis, University of Sheffield, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.434548.

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Pomes-Hadda, Mickael. "Caractérisations et performances des assemblages collés époxyde-amine/aluminium." Thesis, Toulouse, INPT, 2015. http://www.theses.fr/2015INPT0067/document.

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La caractérisation et l’évaluation des propriétés physiques, chimiques, physico-chimiques et mécaniques sont un point important dans la compréhension du comportement des assemblages collés polymère/substrat. La spectroscopie diélectrique est une méthode de caractérisation efficace permettant d’étudier la dynamique moléculaire, et permettre aussi un suivi in situ de joints collés. La modélisation mathématique de résultats expérimentaux par la méthode de l’analyse par intervalle permet de s’affranchir de nombreux défauts de logiciels utilisés couramment (erreur expérimentale prise en compte dans les calculs du modèle, permet d’accepter ou de rejeter un modèle, …). Il a été démontré qu’en présence d’un substrat métallique, une compétition avait lieu entre la réaction de polymérisation et des réactions entre les monomères et les substrats métalliques, menant à une interphase (i.e. interface d’épaisseur non nulle) ayant des propriétés différentes des propriétés du même polymère en volume. Ces propriétés influent sur l’adhérence entre le polymère époxydeamine et le substrat d’aluminium. L’adhérence sera caractérisée par un test normé et reliée aux propriétés de l’interphase par diverses techniques. Des vieillissements de systèmes DGEBAanime/ aluminium ont été effectués. Durant ces vieillissements, des tests destructifs et non destructifs ont été effectués afin d’avoir un suivi sur les propriétés des interphases et interfaces de ces joints collés. Les résultats obtenus ont été mis en corrélation afin de pouvoir être capable par l’utilisation de tests non destructifs in situ, de pouvoir prévenir une rupture à l’interphase/interface entre l’adhésif et le substrat
Characterization and evaluation of physical, chemical, physico-chemical and mechanical properties are an important point in the comprehension of the behavior of bonded polymer/substrate assemblies. Dielectric spectroscopy is an effective method of characterization to study molecular dynamics, and also allow in situ monitoring of bonded joints. Mathematical modeling of experimental results by the method of interval analysis overcomes many shortcomings of commonly used software (experimental error taken into account, accept or reject a model ...). It has been shown that in the presence of a metal substrate, a competition was held between the polymerization reaction and the reactions between the monomers and metal substrates, leading to an interphase (i.e. non-zero thickness of interface) having properties different than these of the bulk. These properties influence the adhesion between the epoxy-amine polymer and the aluminum substrate. Adhesion will be characterized by a standardized test and related to the properties of the interphase by various techniques. The aging of DGEBA-anime/aluminum system have been done during this study. During the aging, destructive and non-destructive tests were carried out in order to have a follow-up on the properties of interfaces and interphases of these bonded joints. The results were correlated in order to be able to use an in situ non-destructive testing to prevent the rupture at the interphase/interface between the adhesive and the substrate
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Chung, Jaeun. "Nanoscale characterization of epoxy interphase on copper microstructures." [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=979725127.

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Oostenbrugge, Robert Jan van. "Interphase cytogenetics in the cytodiagnosis of leptomeningeal metastases." [Maastricht : Maastricht : Universiteit Maastricht] ; University Library, Maastricht University [Host], 1999. http://arno.unimaas.nl/show.cgi?fid=6838.

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Filippo, Miriam Di. "Analysis of the chromatin structure in interphase nuclei." Thesis, Open University, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.489905.

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This thesis is devoted to the characterization and detailed understanding of the base compositional patterns and the distribution of genes in the chromosomes of the chicken genome. Vertebrate chromosomes are organized into isochores, very long DNA segments (»300 kb) that are compositionally fairly homogenous, and characterized by different GC levels.
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Kinloch, Stephen Adam. "Interphase modification in TATB filled polymer bonded explosives." Thesis, Cranfield University, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.303329.

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Cimaszewski, Steven A. (Steven Andrew). "Statistical analysis of fiber composite interphase inverse problem." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/35411.

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Ashirgade, Akshay A. "Mechanistic study of the rubber-brass adhesion interphase." University of Cincinnati / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1291145141.

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Books on the topic "Interphase"

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Yurov, Yuri B., Svetlana G. Vorsanova, and Ivan Y. Iourov, eds. Human Interphase Chromosomes. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-6558-4.

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Iourov, Ivan, Svetlana Vorsanova, and Yuri Yurov, eds. Human Interphase Chromosomes. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-62532-0.

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Netravali, Anil N., and K. L. Mittal, eds. Interface/Interphase in Polymer Nanocomposites. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2016. http://dx.doi.org/10.1002/9781119185093.

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B, Balbuena Perla, and Wang Yixuan, eds. Lithium-ion batteries: Solid-electrolyte interphase. London: Imperial College Press, 2004.

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Kaur, Inderjeet. Fundamentals of grain and interphase boundary diffusion. 3rd ed. Chichester: John Wiley, 1995.

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Kaur, Inderjeet. Fundamentals of grain and interphase boundary diffusion. Stuttgart: ZieglerPress, 1988.

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Kaur, Inderjeet. Fundamentals of grain and interphase boundary diffusion. 2nd ed. Stuttgart: Max-Planck-Institut für Metallforschung and Institut für Metallkunde, 1989.

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Kaur, Inderjeet. Handbook of grain and interphase boundary diffusion data. Stuttgart: Ziegler Press, 1989.

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Kaur, Inderjeet. Handbook of grain and interphase boundary diffusion data. Stuttgart: Ziegler Press, 1989.

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Kaur, Inderjeet. Handbook of grain and interphase boundary diffusion data. Stuttgart: Ziegler Press, 1989.

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Book chapters on the topic "Interphase"

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Arnemann, J. "Interphase-FiSH." In Springer Reference Medizin, 1272. Berlin, Heidelberg: Springer Berlin Heidelberg, 2019. http://dx.doi.org/10.1007/978-3-662-48986-4_3510.

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Ried, Thomas. "Interphase Cytogenetics." In Encyclopedia of Cancer, 1–3. Berlin, Heidelberg: Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-642-27841-9_3108-3.

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Arnemann, J. "Interphase-FiSH." In Lexikon der Medizinischen Laboratoriumsdiagnostik, 1–2. Berlin, Heidelberg: Springer Berlin Heidelberg, 2018. http://dx.doi.org/10.1007/978-3-662-49054-9_3510-1.

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Ried, Thomas. "Interphase Cytogenetics." In Encyclopedia of Cancer, 2319–22. Berlin, Heidelberg: Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-46875-3_3108.

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Pilato, Louis A., and Michael J. Michno. "Composite Interphase." In Advanced Composite Materials, 108–13. Berlin, Heidelberg: Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/978-3-662-35356-1_5.

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Ried, Thomas. "Interphase Cytogenetics." In Encyclopedia of Cancer, 1897–99. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-16483-5_3108.

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Papailiou, Konstantin, and Frank Schmuck. "Interphase Spacers." In Silicone Composite Insulators, 127–63. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-15320-4_5.

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Forwood, C. T., and L. M. Clarebrough. "Interphase Interfaces." In Electron Microscopy of Interfaces in Metals and Alloys, 361–407. Boca Raton: Routledge, 2021. http://dx.doi.org/10.1201/9780203758656-7.

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Iourov, Ivan Y., Svetlana G. Vorsanova, and Yuri B. Yurov. "Human Interphase Cytogenomics." In Human Interphase Chromosomes, 1–10. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-62532-0_1.

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Yurov, Yuri B., Svetlana G. Vorsanova, and Ivan Y. Iourov. "Introduction to Interphase Molecular Cytogenetics." In Human Interphase Chromosomes, 1–8. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-6558-4_1.

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Conference papers on the topic "Interphase"

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Subramanian, Nithya, Ashwin Rai, and Aditi Chattopadhyay. "Characterization of Three-Constituent Interface in CNT-Embedded Nanocomposites." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-65691.

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An atomistic methodology to simulate the constituent interphases in carbon fiber reinforced CNT/epoxy nanocomposites is presented in this paper. Two critical interphase regions are considered in the study: CNT/polymer interphase and the fiber/matrix interphase. The elastic and inelastic responses of the interphases are investigated through molecular dynamic (MD) simulations with appropriate force fields, and integrated with an atomistically informed multiscale modeling framework. The elastic behavior is studied at the molecular level using harmonic force fields whereas bond elongation and subsequent bond dissociation in epoxy polymer chains, and the fiber/matrix interphase are investigated using a bond order based force field. An MD simulation approach adopted from the concept of quasi-continuum (QC) is employed to calculate the bond dissociation energy during virtual deformation tests. The variation of bond dissociation energy density during the deformation tests is integrated into a continuum damage mechanics model to characterize microscale damage in the epoxy matrix. Furthermore, the atomistic force-displacement behavior is also extracted to formulate a traction-separation law for the microscale cohesive zone models for the fiber/matrix interface.
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Robertson, Taylor, Xiao Huang, and Rick Kearsey. "Multilayered Fibre-Matrix Interphases Derived From the Electrophoretic Deposition of Ceramic Nano-Powders." In ASME Turbo Expo 2022: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/gt2022-81166.

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Abstract A significant challenge within the manufacturing of Ceramic Matrix Composites (CMCs) is the creation of the fibre-matrix interphase which enables the damage tolerant behavior of CMCs. Chemical vapour deposition (CVD) has been a highly successful approach for fabricating fibre-matrix interphases; however, CVD requires capital intensive facilities and hazardous precursors. This work examines electrophoretic deposition (EPD) as an alternative route for the production of fibre-matrix interphases. Four multilayered fibre-matrix interphases (SiC/Al2O3, BN/ZrO2, ZrC/85wt%Al2O3-15wt%ZrO2, and SiC/Si3N4/SiC) were produced through multi-staged electrophoretic deposition of ceramic nano-powders upon SiC fibre bundles. A 25-2 factorial design of experiments is utilized to explore the effect of different levels of the following variables: electric field strength, duration, surfactant, solids loading and binder. Following deposition of the fibre-matrix interphase the fibre bundles are thinly coated with a SiC matrix through a reactive melt infiltration technique. The resultant microcomposites are then subjected to tensile loading until failure to determine which coating and deposition combination are the most likely to yield favorable tensile properties. Additional microscopy is performed to determine the uniformity and thickness of the coatings. The results are then examined to evaluate the suitability of electrophoretic deposition as a production technique for fibre-matrix interphase coatings in CMCs.
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Yekani Fard, Masoud, and Joel Swanstrom. "Experimental Approach and Conventional Analytical Techniques to the Carbon Nanotube Network Interphase in 3-Phase Polymer Matrix Nano-Composites." In ASME 2021 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/imece2021-70589.

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Abstract The interaction between the CNT network and the surrounding polymer and between BP and the surrounding polymer occurs via interphase with different morphology than the bulk matrix. This interphase’s properties have not been given enough attention in the literature, and the purpose of this study is to investigate the interphase properties experimentally and analytically. Atomic Force Microscopy based Peak Force Quantitative Nanomechanics Mapping (PFQNM) technique with the high lateral resolution was used for the characterization of the interphase in 3-phase polymer matrix nano-composites at the nanoscale. Details of the calibration parameters such as probe stiffness, spring constant, tip radius, tapping force, deformation level, synchronous distance, drive3 amplitude sensitivity (DDS3), and deflection sensitivity were discussed. AFM Multimode 8, scanner type J with a maximum scanning window of 125μm × 125μm, was used. The Derjaguin, Muller, Toropov (DMT) equation was applied to the retract curve to calculate the elastic modulus. BP is heterogeneous at the nanoscale due to nonuniform resin impregnation. The average interphase thickness for the CNT network is 27nm in BP, higher than ∼10nm between epoxy and fiber, confirming stronger interphase. The CNT network size in BP nanocomposite is influenced by the inter-bundle and intra-bundle pores in the BP. The Kolarik, Quali, and Takayanagi models for interphase of the CNT network were investigated.
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Айзенштадт, А. М., Ю. В. Соколова, Т. А. Дроздюк, and М. А. Авдушева. "INTERPHASE OF BUILDING COMPOSITIONS." In «АКТУАЛЬНЫЕ ВОПРОСЫ СОВРЕМЕННОЙ НАУКИ: ТЕОРИЯ, ТЕХНОЛОГИЯ, МЕТОДОЛОГИЯ И ПРАКТИКА». Международная научно-практическая онлайн-конференция, приуроченная к 60-ти летию член-корреспондента Академии наук ЧР, доктора технических наук, профессора Сайд-Альви Юсуповича Муртазаева. Crossref, 2021. http://dx.doi.org/10.34708/gstou.conf..2021.78.24.008.

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Целью данной работы является демонстрация нескольких методологических подходов к решению задач управления процессами трансформационных превращений вещества на границе раздела фаз макроповерхности и в дисперсных системах, которые можно, на наш взгляд, использовать в качестве критериев количественной характеристики одного из основополагающих законов научного направления «Геоника» - закона «Сродства структур». Предложенные подходы базируются на фундаментальных положениях физической и коллоидной химии, кристаллоэнергетики. В качестве данных критериев, позволяющих управлять структурообразованием на межфазной границе, предложены энергетическая интерпретация кинетической модели топохимического взаимодействия компонентов и значение аналоговой постоянной Гамакера. Разработаны методологические принципы экспериментального определения этих характеристик. Проведена апробация предложенных подходов на примере различных тонкодисперсных композиций: глиоксаль-кора, базальт-кора, базальт-полиминеральный кварцево-полевошпатовый песок и базальт-сапонит. Кроме того, коллоидно-химический подход к созданию суспензий на основе тонкодисперсных частиц горных пород, обладающих специфическими свойствами, позволяет синтезировать агрегативно устойчивые суспензии магнитных жидкостей. Приводятся примеры их использования в строительном материаловедении. This work aims to demonstrate several methodological approaches to solving problems of controlling the transformation processes of matter at the interface of the macro-surface and in dispersed systems, which, in our opinion, can be used as criteria for the quantitative characteristics of one of the fundamental laws of the scientific direction "Geonics" - the "Affinity of structures" law. The proposed approaches are based on the fundamental principles of physical and colloidal chemistry, crystal energy. The energy interpretation of the kinetic model of the topochemical interaction of thecomponents and the analog Hamaker constant value are proposed as these criteria make it possible to control the structure formation at the interface. We have developed the methodological principles for the experimental determination of these characteristics. We have tested the proposed approaches on various finely dispersed compositions: glyoxal-bark, basalt-bark, basalt-polymineral quartz-feldspar sand, and basalt-saponite. Besides, the colloidal-chemical approach to the creation of suspensions based on finely dispersed particles of rocks with specific properties makes it possible to synthesize aggregately stable suspensions of magnetic fluids. Examples of their use in building materials science are given.
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Daily, Connor S., Michael R. Kessler, Xaoli Tan, and Nicola Bowler. "On the nanoparticle interphase." In 2012 IEEE Conference on Electrical Insulation and Dielectric Phenomena - (CEIDP 2012). IEEE, 2012. http://dx.doi.org/10.1109/ceidp.2012.6378831.

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Lemay, J., P. Berube, M. M. Brault, M. Gvozdanovic, M. I. Henderson, M. R. Graham, G. E. Smith, et al. "The Plattsburgh Interphase Power Controller." In 1999 IEEE Transmission and Distribution Conference (Cat. No. 99CH36333). IEEE, 1999. http://dx.doi.org/10.1109/tdc.1999.756127.

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Sharma, Asha, Sumit Basu, and Nandini Gupta. "Estimation of Interphase Permittivity and Interphase Thickness in Epoxy based Nanocomposites using Electrostatic Force Microscopy." In 2019 IEEE Electrical Insulation Conference (EIC). IEEE, 2019. http://dx.doi.org/10.1109/eic43217.2019.9046552.

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Suryawanshi, Vinod B., Mahdi Ghazizadeh, and Ajit D. Kelkar. "Mechanical Properties of Silane Treated Glass Nanofiber-Epoxy Resin Interphase Using Molecular Dynamics Simulation." In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-53602.

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Fiber/matrix interphase in composite materials plays an important role on its structural performance. However, structure and properties of this region are not completely known, due to lack of understanding of the processes occurring at atomic/molecular level during formation of interphase and comprehensive experimental methods for characterization of interphase. In addition, most of the currently used experimental techniques are available for micron size fibers and are not sufficient to characterize the nanofiber/matrix interphase. Recently, molecular dynamics simulations have shown promising results in obtaining the mechanical properties of fiber reinforced polymer composites. The objective of this study is to determine the mechanical properties of silane treated glass nanofibers and epoxy resin interphase using molecular dynamics simulations. To simulate the interphase (blend of sizing/coupling agent and matrix), atomistic models of blend of silane coupling agent (3-aminopropyl) triethoxysilane (APTES) and cross linked epoxy 862 resin system are developed. Mechanical properties of the interphase are predicted for different weight fractions of silane using molecular dynamics simulation.
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Koshino, Tetsushi, Mohamed S. Aly-Hassan, and Hiroyuki Hamada. "Jute Fiber Reinforced Polymeric Composites With Flexible Interphase." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-87775.

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In this research, the flexible interphase concept was introduced to enhance the poor mechanical properties of jute fiber reinforced unsaturated polyester matrix composites. The jute cloth reinforcement was obtained from recycled coffee bags. These jute cloths after washing by water and drying were soaked in mixture of Polybutadiene Epoxydied as flexible resin and acetone for 10 seconds. Several mixtures consist of 0, 2, 3.5, 5 and 8 wt% of Polybutadiene Epoxydied and 100, 98, 96.5, 95 and 92 wt% of acetone, respectively, to form flexible interface around the jute fibers. Jute cloth reinforced unsaturated polyester matrix composites with different flexible interphase incremental weight ((Wa-Wb)/Wb) ratios were fabricated by hand lay-up method and examined by a series of mechanical tests. The mechanical testing including tensile, bending, Izod strength impact and drop impact was carried out for these composites to evaluate the effect of the flexible interphase and acetone on the jute cloth composites. The flexible interphase succeed to control the mechanical properties of jute fiber reinforced unsaturated polyester matrix composites. Inserting flexible interphase between unsaturated polyester matrix and jute fibers leads to smooth fluctuation, less matrix cracking, in the second part after the knee point of each stress-strain curve as exhibited in composites with higher flexible interphase incremental weight ratio. This means not only the brittle matrix but also interface/interphase dominates the multiple matrix cracking behavior in jute cloth reinforced unsaturated polyester matrix composites. Inserting flexible interphase between unsaturated polyester matrix and jute fibers leads to less number of multiple cracking as shown in the second portion of flexural stress-displacement curve. This means the number of multiple cracking are dominated by flexible interphase. The impact strength of jute cloth reinforced unsaturated polyester matrix composites with flexible interphase incremental weight ratio of 1.2% is higher than that of jute cloth reinforced unsaturated polyester matrix composites without flexible interphase by about 45%. The impact energy after maximum load has increased significantly with all flexible interphase incremental weight ratios.
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Seidel, Gary D., Kelli L. Boehringer, and Dimitris C. Lagoudas. "Analysis of Clustering and Interphase Region Effects on the Electrical Conductivity of Carbon Nanotube-Polymer Nanocomposites via Computational Micromechanics." In ASME 2008 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASMEDC, 2008. http://dx.doi.org/10.1115/smasis2008-670.

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In the present work, computational micromechanics techniques are applied towards predicting the effective electrical conductivities of polymer nanocomposites containing aligned bundles of SWCNTs at wide range of volume fractions. Periodic arrangements of well-dispersed and clustered/bundled SWCNTs are studied using the commercially available finite element software COMSOL Multiphysics 3.4. The volume averaged electric field and electric flux obtained are used to calculate the effective electrical conductivity of nanocomposites in both cases, therefore indicating the influence of clustering on the effective electrical conductivity. In addition, the influence of the presence of an interphase region on the effective electrical conductivity is considered in a parametric study in terms of both interphase thickness and conductivity for both the well dispersed case and for the clustered arrangements. Comparing the well-dispersed case with an interphase layer to the same arrangement without the interphase layer allows for the assessment of the influence of the interphase layer on the effective electrical conductivities, while similar comparisons for the clustered arrangements yield information about the combined effects of clustering and interphase regions. Initial results indicate that there is very little influence of the interphase layer on the effective conductivity prior to what is identified as the interphase percolation concentration, and that there is an appreciable combined effect of clustering in the presence of interphase regions which leads to increases in conductivity larger than the sum of the two effects independently.
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Reports on the topic "Interphase"

1

Wynblatt, P. Equilibrium composition of interphase boundaries. Office of Scientific and Technical Information (OSTI), January 1990. http://dx.doi.org/10.2172/6390291.

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Wynblatt, P. [Equilibrium composition of interphase boundaries]. Final report. Office of Scientific and Technical Information (OSTI), October 1998. http://dx.doi.org/10.2172/362510.

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Marshall, David B., and Janek B. Davis. Interphase Debonding in High Temperature Ceramic Composites. Fort Belvoir, VA: Defense Technical Information Center, September 2001. http://dx.doi.org/10.21236/ada389369.

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Rellick, G. S., R. J. Zaldivar, and P. M. Adams. Fiber-Matrix Interphase Development in Carbon/Carbon Composites. Fort Belvoir, VA: Defense Technical Information Center, January 1998. http://dx.doi.org/10.21236/ada341620.

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Zimmerman, Jonathan A., Bryan Matthew Wong, Reese E. Jones, Jeremy Alan Templeton, and Jonathan Lee. Enhanced molecular dynamics for simulating porous interphase layers in batteries. Office of Scientific and Technical Information (OSTI), October 2009. http://dx.doi.org/10.2172/972859.

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Trask, B. Chromosome mapping by FISH to metaphase and interphase nuclei. Final report. Office of Scientific and Technical Information (OSTI), August 1997. http://dx.doi.org/10.2172/510363.

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Riemke, R. Junction-based interphase drag and vertical stratification modifications for RELAP5/MOD3. Office of Scientific and Technical Information (OSTI), June 1989. http://dx.doi.org/10.2172/7049824.

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Jon J. Kellar, William M. Cross, and Lidvin Kjerengtroen. Final Report: Interphase Analysis and Control in Fiber Reinforced Thermoplastic Composites. Office of Scientific and Technical Information (OSTI), March 2009. http://dx.doi.org/10.2172/949227.

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Dauskardt, Reinhold H., Mark Oliver, Anay Kamer, Jeffrey Yang, and Linying Wang. Interphase Thermomechanical Reliability and Optimization for High-Performance Ti Metal Laminates. Fort Belvoir, VA: Defense Technical Information Center, December 2011. http://dx.doi.org/10.21236/ada563164.

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Joukov, Vladimir. The Role of BRCA1/BARD1 Heterodimers in the Mitosis-Interphase Transition. Fort Belvoir, VA: Defense Technical Information Center, May 2007. http://dx.doi.org/10.21236/ada471801.

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