Relevant bibliographies by topics / 3D microstructures

Academic literature on the topic '3D microstructures'

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Published: 4 June 2021
Last updated: 4 February 2022

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Journal articles on the topic "3D microstructures"

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Basanta, David, Mark A. Miodownik, Elizabeth A. Holm, and Peter J. Bentley. "Evolving 3D Microstructures Using a Genetic Algorithm." Materials Science Forum 467-470 (October 2004): 1019–24. http://dx.doi.org/10.4028/www.scientific.net/msf.467-470.1019.

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We describe a general approach to obtaining 3D microstructures as input to computer simulations of materials properties. We introduce a program called MicroConstructor, that takes 2D micrographs and generates 3D discrete computer microstructures which are statistically equivalent in terms of the microstructural variables of interest. The basis of the code is a genetic algorithm that evolves the 3D microstructure so that its stereological parameters match the 2D data. Since this approach is not limited by scale it can be used to generate 3D initial multiscale microstructures. This algorithm will enable microstructural modellers to use as their starting point, experimentally based microstructures without having to acquire 3D information experimentally, a very time consuming and expensive process.
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Dong, Qin, Zhong Wei Yin, Hu Lin Li, Yang Mao, and Geng Yuan Gao. "3D Reconstruction of Microstructure for Centrifugal Casting Babbitt Lining of Bimetallic Bearing Based on Mimics." Key Engineering Materials 841 (May 2020): 94–98. http://dx.doi.org/10.4028/www.scientific.net/kem.841.94.

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Babbitt alloys are the most commonly used bearing materials for low speed diesel engines due to their excellent attributes. An understanding of microstructures in these alloys is important, especially quantifying microstructure in 3D. In this study, we used serial sectioning technique to reconstruct 3D microstructure of tin-based Babbitt lining of bimetallic bearing made by centrifugal casting based on medical software Mimics. The morphologies and volume fraction of hard phase particles and α-Sn matrix were obtained. The volume fraction of the reconstructed microstructures was verified by the area fraction of the metallographic sections, which proved a higher reliability of 3D reconstruction. The results of 3D microstructural characterization and analysis will enable a comprehensive understanding the structure–property relationships of these materials.
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Xu, Bin, Kang Guo, Likuan Zhu, Xiaoyu Wu, and Jianguo Lei. "Applying Foil Queue Microelectrode with Tapered Structure in Micro-EDM to Eliminate the Step Effect on the 3D Microstructure’s Surface." Micromachines 11, no. 3 (March 24, 2020): 335. http://dx.doi.org/10.3390/mi11030335.

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When using foil queue microelectrodes (FQ-microelectrodes) for micro electrical discharge machining (micro-EDM), the processed results of each foil microelectrode (F-microelectrode) can be stacked to construct three-dimensional (3D) microstructures. However, the surface of the 3D microstructure obtained from this process will have a step effect, which has an adverse effect on the surface quality and shape accuracy of the 3D microstructures. To focus on this problem, this paper proposes to use FQ-microelectrodes with tapered structures for micro-EDM, thereby eliminating the step effect on the 3D microstructure’s surface. By using a low-speed wire EDM machine, a copper foil with thickness of 300 μm was processed to obtain a FQ-microelectrode in which each of the F-microelectrodes has a tapered structure along its thickness direction. These tapered structures could effectively improve the construction precision of the 3D microstructure and effectively eliminate the step effect. In this paper, the effects of the taper angle and the number of microelectrodes on the step effect were investigated. The experimental results show that the step effect on the 3D microstructure’s surface became less evident with the taper angle and the number of F-microelectrodes increased. Finally, under the processing voltage of 120 V, pulse width of 1 μs and pulse interval of 10 μs, a FQ-microelectrode (including 40 F-microelectrodes) with 10° taper angle was used for micro-EDM. The obtained 3D microstructure has good surface quality and the step effect was essentially eliminated.
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Mishnaevsky, Leon. "Computational Analysis of the Effects of Microstructures on Damage and Fracture in Heterogeneous Materials." Key Engineering Materials 306-308 (March 2006): 489–94. http://dx.doi.org/10.4028/www.scientific.net/kem.306-308.489.

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3D FE (finite element) simulations of the deformation and damage evolution of particle reinforced composites are carried out for different microstructures of the composites. Several new methods and programs for the automatic reconstruction of 3D microstructures of composites on the basis of the geometrical description of microstructures as well as on the basis of the voxel array data have been developed and tested. Different methods of reconstruction and generation of finite element models of 3D microstructures of composite materials (geometry-based and voxel array based) are discussed and compared. It was shown that FE analyses of the elasto-plastic deformation and damage of composite materials using the microstructural models of materials generated with these methods yield very close results. Numerical testing of composites with random, regular, clustered and gradient arrangements of spherical particles is carried out. The fraction of failed particles and the tensile stress-strain curves were determined numerically for each of the microstructures. It was found that the rate of damage growth as well as the critical applied strain, at which the damage growth in particles begins, depend on the particle arrangement, and increase in the following order: gradient < random < regular < clustered microstructure.
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Spanos, Ioannis, Alexandros Selimis, and Maria Farsari. "3D magnetic microstructures." Procedia CIRP 74 (2018): 349–52. http://dx.doi.org/10.1016/j.procir.2018.08.139.

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Bakar, Azrena Abu, Masahiro Nakajima, Chengzhi Hu, Hirotaka Tajima, Shoichi Maruyama, and Toshio Fukuda. "Fabrication of 3D Photoresist Structure for Artificial Capillary Blood Vessel." Journal of Robotics and Mechatronics 25, no. 4 (August 20, 2013): 673–81. http://dx.doi.org/10.20965/jrm.2013.p0673.

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We propose a new method for fabricating artificial capillaries using direct laser writing. IP-L and Ormocomp are tested as photoresist materials. Three different microstructures were fabricated from IP-L: a porous hollow pipe microstructure, a 3 × 3 array of twig microstructures, and an array of hollow twig microstructures. Porous hollow pipe microstructures of different diameters were fabricated from Ormocomp, a biocompatible photoresist. These designs resemble capillaries. IP-L and Ormocomp fabrication parameters, such as laser power, numerical aperture, fabrication time, and fabrication model, are compared. Fabrication time is related to the fabrication model chosen during the direct laser writing process. Combined model fabrication is recommended over solid model fabrication because it results in shorter fabrication time and a more robust microstructure that is more likely to maintain its shape on the substrate after development. Laser power is another important parameter controlling fabrication. IP-L fabrication withstands up to 20 mW of laser power, unlike Ormocomp microstructures, which require laser power of less than 18 mW. IP-L and Ormocomp photoresist stiffness is also evaluated. The fabrication of artificial capillaries is important in developing vascular simulators that enable researchers to understand, for example, blood pressure in the kidney glomerulus.
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Li, Chun, Guojia Fang, Wenjie Guan, and Xingzhong Zhao. "Multipod ZnO 3D microstructures." Materials Letters 61, no. 14-15 (June 2007): 3310–13. http://dx.doi.org/10.1016/j.matlet.2007.02.068.

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Park, Kyungjin, Kanghyun Kim, Seung Lee, Geunbae Lim, and Jong Kim. "Fabrication of Polymer Microstructures of Various Angles via Synchrotron X-Ray Lithography Using Simple Dimensional Transformation." Materials 11, no. 8 (August 17, 2018): 1460. http://dx.doi.org/10.3390/ma11081460.

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In this paper, we developed a method of fabricating polymer microstructures at various angles on a single substrate via synchrotron X-ray lithography coupled with simple dimensional transformations. Earlier efforts to create various three-dimensional (3D) features on flat substrates focused on the exposure technology, material properties, and light sources. A few research groups have sought to create microstructures on curved substrates. We created tilted microstructures of various angles by simply deforming the substrate from 3D to two-dimensional (2D). The microstructural inclination angles changed depending on the angles of the support at particular positions. We used convex, concave, and S-shaped supports to fabricate microstructures with high aspect ratios (1:11) and high inclination angles (to 79°). The method is simple and can be extended to various 3D microstructural applications; for example, the fabrication of microarrays for optical components, and tilted micro/nanochannels for biological applications.
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Zheng, Xiu Ting, Hai Long Wei, Shi Bao Li, Da Ming Wu, Ying Liu, Ya Jun Zhang, Hong Xu, and Yang Zhou. "The Research on Structure Design of LED Fluorescent Lamp Microstructures Diffuser and the Effect on the Optical Properties." Advanced Materials Research 712-715 (June 2013): 1274–78. http://dx.doi.org/10.4028/www.scientific.net/amr.712-715.1274.

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This thesis is devoted to the research on different microstructures design of lighting LED fluorescent lamp diffuser,and the simulation analysis of the light and distribution graph of 2D microstructures array diffuser of C semi-cylinder lens and V-cut prism,diffuser of microlens array 3D microstructures and non-micro structure diffuser by software Light Tools,then comparative analysis the transmittance and uniformity of these diffuser.The finding indicate that,Compared with none microstructure and 3D microlens diffuser,2D microstructure diffuser can achieve LED fluorescent lamp uniformity and transmittance reached more than 85%, it can realize the excellent integrated optical properties indicators of LED fluorescent lamp light uniform distribution,Not only realize the energy saving and avoid glare effect.
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Gomes, Edgar, Kim Verbeken, and Leo Kestens. "Virtual 3D Microstructures with Specified Characteristics of State Variable Distributions." Materials Science Forum 702-703 (December 2011): 540–43. http://dx.doi.org/10.4028/www.scientific.net/msf.702-703.540.

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For a wide variety of model calculations a hypothetical 3D microstructure is required as input. Although experimental data are frequently used to this purpose, 3D microstructures are difficult to measure experimentally. In order to circumvent these difficulties, a virtual microstructure generator to simulate a specific 3D material microstructure is proposed. Such a virtual microstructure could serve as input for different types of models, would allow a faster model prototyping, would help to explore the boundary conditions of models and reduces the number of unnecessary experimental measurements. In the current paper, the method to generate and to control the grain size distribution as well as texture are discussed.
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Dissertations / Theses on the topic "3D microstructures"

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King, Philip Huw. "Towards rapid 3D direct manufacture of biomechanical microstructures." Thesis, University of Warwick, 2009. http://wrap.warwick.ac.uk/3749/.

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The field of stereolithography has developed rapidly over the last 20 years, and commercially available systems currently have sufficient resolution for use in microengineering applications. However, they have not as yet been fully exploited in this field. This thesis investigates the possible microengineering applications of microstereolithography systems, specifically in the areas of active microfluidic devices and microneedles. The fields of micropumps and microvalves, stereolithography and microneedles are reviewed, and a variety of test builds were fabricated using the EnvisionTEC Perfactory Mini Multi-Lens stereolithography system in order to define its capabilities. A number of microneedle geometries were considered. This number was narrowed down using finite element modelling, before another simulation was used to optimise these structures. 9 × 9 arrays of 400 μm tall, 300 μm base diameter microneedles were subjected to mechanical testing. Per needle failure forces of 0.263 and 0.243 N were recorded for the selected geometries, stepped cone and inverted trumpet. The 90 μm needle tips were subjected to between 30 and 32 MPa of pressure at their failure point - more than 10 times the required pressure to puncture average human skin. A range of monolithic micropumps were produced with integrated 4 mm diameter single-layer 70 μm-thick membranes used as the basis for a reciprocating displacement operating principle. The membranes were tested using an oscillating pneumatic actuation, and were found reliable (>1,000,000 cycles) up to 2.0 PSIG. Pneumatic single-membrane nozzle/diffuser rectified devices produced flow rates of up to 1,000 μl/min with backpressures of up to 375 Pa. Another device rectified using active membrane valves was found to self-prime, and produced backpressures of up to 4.9 kPa. These devices and structures show great promise for inclusion in complex, fully integrated and active microfluidic systems fabricated using microstereolithography alone, with implications for both cost of manufacture and lead time.
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Sosa, John Manuel. "Development of Tools for 2D and 3D Microstructural Characterization and Their Application to Titanium Alloy Microstructures." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1420629389.

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Moroni, Riko [Verfasser], Lars [Akademischer Betreuer] Pastewka, and Simon [Akademischer Betreuer] Thiele. "Segmentation and computational analysis of 3D porous microstructures in Li-ion cells." Freiburg : Universität, 2020. http://d-nb.info/122783943X/34.

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Groeber, Michael Anthony. "Development of an automated characterization-representation framework for the modeling of polycrystalline materials in 3D." Columbus, Ohio : Ohio State University, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1187104216.

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Barry, Erin Patricia. "Three-Dimensional Reconstruction of Microstructures in α + β Titanium Alloys." The Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=osu1211214635.

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Mutapcic, Emir, and n/a. "Optimised part programs for excimer laser-ablation micromachining directly from 3D CAD models." Swinburne University of Technology. Faculty of Engineering and Industrial Sciences, 2006. http://adt.lib.swin.edu.au./public/adt-VSWT20061117.154651.

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Fabrication of a 3D structure and surface texture using excimer laser mask projection ablation processes typically requires the machine operator to develop a specific NC part program for the desired structure geometry, and also incorporate appropriate machine parameters to achieve the desired surface finish. The capability of the laser ablation process could therefore be significantly improved by developing a CAD/CAM system that automatically generates the NC part program using the 3D information of the CAD model of the desired structure. Accordingly, the focus of this research was to develop such a system that is, an effective CAD/CAM system specifically for excimer laser mask projection micromachining tools. To meet these requirements, a unique combination of commercially available systems was used to develop the new CAD/CAM system. The systems used comprised of a computer aided, feature based parametric design system (SolidWorks), together with its extended programming capabilities based on Automated Programming Interface (API) functions for Windows applications, and Visual Basic (VB) 6.0 programming utilities. The system's algorithms use a novel methodology to extract the 3D geometry of a microstructure. Two different techniques have been developed to extract the 3D data. First, where 3D geometry information from a CAD model was defined as a Stereolithography (STL) file, and second, where this information has been contained in a set of bit-map (BMP) files that represent a sliced or layered structure of a CAD model. Based on this, first an algorithm to create NC part programs to support Step-and-repeat micromachining technique was developed and then successfully extended to be applicable for another commonly used micromachining method, Workpiece-Dragging technique. The systems algorithms for both techniques are based on the raster-colour programming technique, resulting in substantially reduced mathematical complexity and computational time. This is the first time this approach has been used to support direct conversion of 3D geometry from a CAD model into an NC part program compatible with the excimer laser CNC controller. 2D mathematical models for controlling edge and stitching errors were also implemented in the system. An additional technique, named as 'Common Nest' has been developed with the aim to enable automatic NC part programming when microstructure design to be completed successfully, requires use of multiple complex mask patterns as a projection tool instead of just a single square aperture. The effectiveness of the system was verified by NC part program generation for several 3D microstructures and subsequent machining trials using polycarbonate (PC) and Polyethylene terephthalate (PET), and optimised processing parameters. Excellent agreement was obtained between the laser machined geometries and the microstructure CAD models. The Laser Scanning Confocal Microscope (LSCM) measured the lateral dimensions tolerance of 2m. The system was also successfully applied for a practical micro-engineering application, for the development of a microfluidics cell transportation device.
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Vecchio, Irene [Verfasser], and Claudia [Akademischer Betreuer] Redenbach. "Image based characterization and geometric modeling of 3d materials microstructures / Irene Vecchio. Betreuer: Claudia Redenbach." Kaiserslautern : Technische Universität Kaiserslautern, 2015. http://d-nb.info/1070603740/34.

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Eichhorn, Melanie [Verfasser]. "3D-microstructures with designed surface chemistry for the study of cell adhesion and deformation / Melanie Eichhorn." München : Verlag Dr. Hut, 2018. http://d-nb.info/1166482510/34.

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Flin, Frédéric. "Description physique des métamorphoses de la neige à partir d'images de microstructures 3D naturelles obtenues par microtomographie X." Université Joseph Fourier (Grenoble), 2004. http://www.theses.fr/2004GRE10006.

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Zerhouni, Othmane. "Etude des propriétés élastiques effectives de matériaux poreux à microstructure aléatoire : Impression 3D, caractérisation, expérimentale et numérique." Thesis, Institut polytechnique de Paris, 2019. http://www.theses.fr/2019IPPAX008.

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Dans le cadre de cette thèse, la combinaison de plusieurs outils numériques et expérimentaux a permis la génération de différents modèles de microstructures aléatoires afin d'étudier l'influence des descripteurs statistiques sur les propriétés élastiques effectives des matériaux poreux.Dans un premier temps, nous avons développé une procédure qui associe impression 3D, caractérisation expérimentale et numérique ainsi que les résultats théoriques sur les propriétés effectives de matériaux poreux désordonnée. Cette méthodologie est appliquée à la fabrication de microstructures constituées de pores sphériques, de taille unique ou avec une distribution de plusieurs tailles, qui sont disposés dans une volume cubique par un procédé d'ajout séquentiel et aléatoire (RSA). Un protocole expérimental est développé en commençant par la détermination du volume élémentaire représentatif (VER) afin d'obtenir des propriétés macroscopiques indépendantes des conditions aux limites imposées à l'échantillon numérique ou expérimental. A partir de ces résultats, une éprouvette standard est réalisée pour des essais multi-étapes de traction-relaxation sur matériaux polymères. Les résultats numériques et expérimentaux concernant les propriétés élastiques effectives de ces microstructures sont proches de la borne supérieure de Hashin-Shtrikman pour les matériaux isotropes pour une large gamme de porosité.Dans la seconde partie de cette thèse, on cherche à évaluer l'influence de certains descripteurs statistiques de la microstructure sur les propriétés élastiques macroscopiques pour les relier à l'espace poreux aléatoire et multi-échelle dans les carbonates. Pour cela, nous commençons par tester la pertinence des fonctions de corrélation à deux points en considérant deux familles différentes de microstructures poreuses qui ont les mêmes statistiques de second ordre. La première famille est générée par le code RSA avec différents élancements des pores ellipsoïdaux. La deuxième famille est, quant à elle, obtenue par seuillage de champs gaussiens générés à partir des fonctions de corrélations mesurées sur la première. Les propriétés élastiques effectives de ces deux familles sont obtenues par simulations numériques basées sur la transformée de Fourier rapide (FFT). Les résultats montrent que la fonction de corrélation est insuffisante pour prédire les propriétés effectives de matériaux poreux aléatoires. Nous proposons ensuite une manière d'évaluer l'influence de la connectivité sur les propriétés élastiques en considérant un réseau connecté de pores ellipsoïdaux reliés par des canaux cylindriques. Les propriétés effectives de ces microstructures montrent qu'une faible porosité additionnelle pour relier les pores ne change pas de manière significative la fonction de corrélation ou la distribution de cordes entre les microstructures mais peut engendrer d'important changement dans les modules élastiques des microstructures.Par la suite, une analyse du lien entre la géométrie locale dans l'espace poreux et les champs élastiques du matériaux est proposée. Cela consiste à étudier la distribution des fluctuations locales du champ de déformation par rapport à la distance euclidienne séparant un point de la phase solide de l'interface avec la phase poreuse. La moyenne et l'écart type des fluctuations de la composante hydrostatique du champ de déformation pour un chargement hydrostatique concordent qualitativement avec les modules de compressibilité effectives obtenus. Des observations similaires sont obtenues en analysant la composante de cisaillement pour un chargement en cisaillement. Compte tenu de ces résultats, il semble que les propriétés élastiques effectives des différentes microstructures étudiées sont fortement sensibles à l'information géométrique locale contenus dans la forme des pores et leur connectivité
This thesis deals with the 3D-printing, numerical simulation and experimental testing of porous materials with random isotropic microstructures. In particular, we attempt to assess by means of well-chosen examples the effect of partial statistical descriptors (i.e., porous volume fraction or porosity, two-point correlation functions and chord-length distribution) upon the linear effective elastic response of random porous materials and propose (nearly) optimal microstructures by direct comparison with available theoretical mathematical bounds. To achieve this, in the first part of this work, we design ab initio porous materials comprising single-size (i.e. monodisperse) and multiple-size (polydisperse) spherical and ellipsoidal non-overlapping voids. The microstructures are generated using a random sequential adsorption (RSA) algorithm that allows to reach very high porosities (e.g. greater than 80%). The created microstructures are then numerically simulated using finite element (FE) and Fast Fourier Tranform (FFT) methods to obtain representative isotropic volume elements in terms of both periodic and kinematic boundary conditions. This then allows for the 3D-printing of the porous microstructures in appropriately designed dog-bone specimens. An experimental setup for uniaxial tension loading conditions is then developed and the 3D-printed porous specimens are tested to retrieve their purely linear elastic properties. This process allows, for the first time experimentally, to show that such polydisperse (multiscale) microstructures can lead to nearly optimal effective elastic properties when compared with the theoretical Hashin-Shtrikman upper bounds for a very large range of porosities spanning values between 0-82%. To understand further the underlying mechanisms that lead to such a nearly optimal response, we assess the influence of several statistical descriptors (such as the one- and two-point correlation functions, the chord-length distribution function) of the microstructure upon the effective elastic properties of the porous material. We first investigate the ability of the two-point correlation function to predict accurately the effective response of random porous materials by choosing two different types of microstructures, which have exactly the same first (i.e., porosity) and second-order statistics. The first type consists of non-overlapping spherical and ellipsoidal pores generated by the RSA process. The second type, which uses the thresholded Gaussian Random Field (GRF) method, is directly reconstructed by matching the one- and two-point correlation functions from the corresponding RSA microstructure. The FFT-simulated effective elastic properties of these two microstructures reveal very significant differences that are in the order of 100% in the computed bulk and shear moduli. This analysis by example directly implies that the two-point statistics can be highly insufficient to predict the effective elastic properties of random porous materials. We seek to rationalize further this observation by introducing controlled connectivity in the original non-overlapping RSA microstructures. The computed effective elastic properties of these microstructures show that the pore connectivity does not change neither the two-point correlation functions nor the chord-length distribution but leads to a significant decrease in the effective elastic properties. In order to quantify better the differences between those three microstructures, we analyze the link between the local geometry of the porous phase and the corresponding computed elastic fields by computing the first (average) and second moments of the elastic strain fluctuations. This last analysis suggests that partial statistical information of the microstructure (without any input from the corresponding elasticity problem) might be highly insufficient even for the qualitative analysis of a porous material and by extension of any random composite material
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Books on the topic "3D microstructures"

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Ticar, Johanna Maria. 3D Analysis of the Myocardial Microstructure. Wiesbaden: Springer Fachmedien Wiesbaden, 2016. http://dx.doi.org/10.1007/978-3-658-11424-4.

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Ohser, Joachim. 3D images of materials structures: Processing and analysis. Weinheim: Wiley-VCH, 2009.

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Dechev, Nikolai. Microassembly of 3D microstructures and micro-electromechanical systems (MEMS). 2004.

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Sasaki, Yuji C., and H. Daimon. 3D Local Structure and Functionality Design of Materials. World Scientific Publishing Co Pte Ltd, 2019.

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Ticar, Johanna Maria. 3D Analysis of the Myocardial Microstructure: Determination of Fiber and Sheet Orientations. Springer Spektrum, 2015.

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Schladitz, Katja, and Joachim Ohser. 3D Images of Materials Structures: Processing and Analysis. Wiley & Sons, Incorporated, John, 2009.

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Schladitz, Katja, and Joachim Ohser. 3D Images of Materials Structures: Processing and Analysis. Wiley & Sons, Limited, John, 2010.

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Schladitz, Katja, and Joachim Ohser. 3D Images of Materials Structures: Processing and Analysis. Wiley-VCH, 2008.

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Book chapters on the topic "3D microstructures"

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Sintay, Stephen D., Michael A. Groeber, and Anthony D. Rollett. "3D Reconstruction of Digital Microstructures." In Electron Backscatter Diffraction in Materials Science, 139–53. Boston, MA: Springer US, 2009. http://dx.doi.org/10.1007/978-0-387-88136-2_10.

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Jeulin, Dominique. "Analysis and Modeling of 3D Microstructures." In Mathematical Morphology, 421–44. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118600788.ch19.

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Li, J. M., Li Lü, M. O. Lai, and B. Ralph. "Fractal Measurements of Topographical Images from 3D Surfaces." In Image-Based Fractal Description of Microstructures, 133–58. Boston, MA: Springer US, 2003. http://dx.doi.org/10.1007/978-1-4757-3773-8_7.

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Prill, Torben, Katja Schladitz, and Christian Wieser. "Simulation of FIB-SEM Images for Segmentation of Porous Microstructures." In 1stInternational Conference on 3D Materials Science, 159–64. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118686768.ch24.

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Coppola, Sara. "Pyro-EHD Lithography, Fabrication and Employment of 3D Microstructures." In Springer Theses, 55–72. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-31059-6_4.

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Yang, Sam, Scott Furman, and Andrew Tulloh. "A Data-Constrained 3D Model for Material Compositional Microstructures." In Frontiers in Materials Science and Technology, 267–70. Stafa: Trans Tech Publications Ltd., 2008. http://dx.doi.org/10.4028/0-87849-475-8.267.

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Chen, Xian, Shanshan Cao, Teruyuki Ikeda, Vijay Srivastava, G. Jeffrey Snyder, Dominique Schryvers, and Richard D. James. "3D Microstructures of Sb2Te3Precipitates in PbTe Matrix with Prediction by a Weak Compatibility Condition." In 1stInternational Conference on 3D Materials Science, 125–30. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118686768.ch19.

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Prill, Torben, Katja Schladitz, and Christian Wieser. "Simulation of FIB-SEM Images for Segmentation of Porous Microstructures." In Proceedings of the 1st International Conference on 3D Materials Science, 159–64. Cham: Springer International Publishing, 2012. http://dx.doi.org/10.1007/978-3-319-48762-5_24.

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Uchic, Michael, Michael Groeber, Megna Shah, Patrick Callahan, Adam Shiveley, Michael Scott, Michael Chapman, and Jonathan Spowart. "An Automated Multi-Modal Serial Sectioning System for Characterization of Grain-Scale Microstructures in Engineering Materials." In 1stInternational Conference on 3D Materials Science, 195–202. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118686768.ch30.

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Horníková, Jana, Pavel Šandera, and Jaroslav Pokluda. "Effective Stress Intensity Factor for the Straight Crack Front with 3D-Ledges." In Microstructures, Mechanical Properties and Processes - Computer Simulation and Modelling, 232–35. Weinheim, FRG: Wiley-VCH Verlag GmbH & Co. KGaA, 2005. http://dx.doi.org/10.1002/3527606157.ch37.

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Conference papers on the topic "3D microstructures"

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Piqué, Alberto, Nicholas A. Charipar, Rubén E. Diaz-Rivera, and Kristin M. Charipar. "Laser-induced forward transfer (LIFT) of 3D microstructures." In Laser 3D Manufacturing V, edited by Henry Helvajian, Alberto Piqué, and Bo Gu. SPIE, 2018. http://dx.doi.org/10.1117/12.2294578.

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Rollett, A. D. "Modeling Polycrystalline Microstructures in 3D." In MATERIALS PROCESSING AND DESIGN: Modeling, Simulation and Applications - NUMIFORM 2004 - Proceedings of the 8th International Conference on Numerical Methods in Industrial Forming Processes. AIP, 2004. http://dx.doi.org/10.1063/1.1766503.

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Balberg, Michal, George Barbastathis, David J. Brady, Bo Kyoung Choi, and Chang Liu. "Holographic 3D imaging of microstructures." In SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, edited by Francis T. S. Yu and Shizhuo Yin. SPIE, 1999. http://dx.doi.org/10.1117/12.363933.

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Gandhi, Prasanna, Kiran Bhole, and Naresh Chaudhari. "Fabrication of Textured 3D Microstructures Using ‘Bulk Lithography’." In ASME 2012 International Manufacturing Science and Engineering Conference collocated with the 40th North American Manufacturing Research Conference and in participation with the International Conference on Tribology Materials and Processing. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/msec2012-7357.

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This paper presents the method of fabrication of textured three dimensional (3D) microstructures in single scan of laser beam. The textured 3D microstructures are obtained on one of the free surface (surface opposite to the substrate) of the microstructure. Fabrication of textured 3D microstructure is achieved using newly developed 3D microfabrication process termed as ‘Bulk lithography’. In this process the required depth variation is obtained during fabrication by allowing unconstrained depth photopolymerization and varying laser exposure while scanning. Hence, representative experimental results of dimensionless cured depth against dimensionless energy were obtained. Three different regimes of cured depth namely absorption, transition and scattering were observed under wide energy exposure. A predefined texture can be incorporated in CAD model itself and the structures can be fabricated when restricted to absorption dominant regime. However, the novelty of the proposed method lies in a distinct phenomenon observed in transition and scattering regime based on characteristic multiple scattering leading to textured surfaces in these regimes.. Further, it is observed experimentally that these textures are function of the exposure energy and are hypothyzed because of scattering of light.
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Engle, B. J., R. A. Roberts, and R. J. Grandin. "Ultrasound scatter in heterogeneous 3D microstructures." In 43RD ANNUAL REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLUME 36. Author(s), 2017. http://dx.doi.org/10.1063/1.4974733.

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Maciossek, Andreas. "Electrodeposition of 3D microstructures without molds." In Micromachining and Microfabrication '96, edited by Stella W. Pang and Shih-Chia Chang. SPIE, 1996. http://dx.doi.org/10.1117/12.251226.

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Stiebing, M., E. Lortscher, W. Steller, D. Vogel, M. J. Wolf, T. Brunschwiler, and B. Wunderle. "Stress investigations in 3D-integrated silicon microstructures." In 2016 17th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Microelectronics and Microsystems (EuroSimE). IEEE, 2016. http://dx.doi.org/10.1109/eurosime.2016.7463368.

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Kowarsch, Robert, Wanja Ochs, Moritz Giesen, Alexander Dräbenstedt, Marcus Winter, and Christian Rembe. "Real-time 3D vibration measurements in microstructures." In SPIE Photonics Europe, edited by Christophe Gorecki, Anand K. Asundi, and Wolfgang Osten. SPIE, 2012. http://dx.doi.org/10.1117/12.922184.

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Christensen, Jr., C. P. "Waveguide excimer laser fabrication of 3D microstructures." In Optics Quebec, edited by Ian W. Boyd. SPIE, 1994. http://dx.doi.org/10.1117/12.167552.

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Gandhi, Prasanna, and Kiran Bhole. "3D Microfabrication Using Bulk Lithography." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-62473.

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Microstereolithography (MSL) has been a promising technology for fabrication of three-dimensional (3D) microstructure using layer-by-layer photopolymerization. However, this process produces 3D microstructures with a step corresponding to each layer. We propose in this paper a novel way, termed as ‘Bulk Lithography’, of generating 3D microstructures in single-pass scanning of laser beam over the photopolymer resin of unconstraint depth. In the proposed method, laser energy exposure, being one of the important parameters affecting cured depth, is varied along the line scan to enable fabrication of varying depth structure. Test structure is fabricated with proposed method to illustrate the capability of the proposed process. Lesser fabrication time and step-free 3D microfabrication in the direction perpendicular to the scan plane (z-axis) are the key features of the proposed method.
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Reports on the topic "3D microstructures"

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Uchic, Michael D. Serial Sectioning Methods for Generating 3D Characterization Data of Grain- and Precipitate-Scale Microstructures (Preprint). Fort Belvoir, VA: Defense Technical Information Center, April 2010. http://dx.doi.org/10.21236/ada526683.

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Ogura, K. S., S. B. Donald, and B. W. Chung. Improving Microstructural Quantification in 3D FIB-SEM Tomography. Office of Scientific and Technical Information (OSTI), September 2019. http://dx.doi.org/10.2172/1566797.

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Taller, Stephen, Ty Austin, Vincent Paquit, and Kurt Terrani. Report on Properties and Microstructure of 3D Printed Inc-718. Office of Scientific and Technical Information (OSTI), September 2021. http://dx.doi.org/10.2172/1820785.

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Uchic, Michael D., Michael Groeber, Megna Shah, Gregory Loughnane, Raghavan Srinivasan, Ramana Grandhi, and Matthew Riley. Quantifying the Effect of 3D Spatial Resolution on the Accuracy of Microstructural Distributions (PREPRINT). Fort Belvoir, VA: Defense Technical Information Center, August 2012. http://dx.doi.org/10.21236/ada566104.

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Rudman, K., P. Dickerson, Darrin David Byler, P. Peralta, H. Lim, R. McDonald, R. Dickerson, and Kenneth James Mcclellan. 3D Microstructural Characterization of Uranium Oxide as a Surrogate Nuclear Fuel: Effect of Oxygen Stoichiometry on Grain Boundary Distributions. Office of Scientific and Technical Information (OSTI), September 2017. http://dx.doi.org/10.2172/1392797.

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