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Effect of Rubber Particle Size and Graft Ratio on the Morphology and Tensile Properties of ABS Resins 橡胶粒径和接枝率对ABS树脂形貌和拉伸性能的影响
Materials Science Research International Pub Date : 2000-06-15 DOI: 10.2472/JSMS.49.6APPENDIX_104
H. Yamane, Z. Maekawa, Hajime Sakano
{"title":"Effect of Rubber Particle Size and Graft Ratio on the Morphology and Tensile Properties of ABS Resins","authors":"H. Yamane, Z. Maekawa, Hajime Sakano","doi":"10.2472/JSMS.49.6APPENDIX_104","DOIUrl":"https://doi.org/10.2472/JSMS.49.6APPENDIX_104","url":null,"abstract":"Tensile properties and the phase morphologies of ABS resins with various rubber particle sizes and graft ratios of SAN are examined. Large rubber particles disperse well in ABS resins irrespective of the graft ratio. On the other hand, the graft ratio affects the dispersion state of the small rubber particle, particles with high graft ratio disperse well and those with low graft ratio tend to coalesce into large aggregates. These differences of the morphology strongly alter the deformation mechanism, such as craze formation and cavitation in the rubber particles. The effects of mixing of ABS resins with various graft ratio and particle size on the mechanical properties and phase morphology are also discussed.","PeriodicalId":377759,"journal":{"name":"Materials Science Research International","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130264584","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Vital problems of nanocomposite structure and possibilities of their modular design 纳米复合材料结构的关键问题及其模块化设计的可能性
Materials Science Research International Pub Date : 2000-03-15 DOI: 10.2472/JSMS.49.3APPENDIX_22
P. An, N. A. Bulienkov
{"title":"Vital problems of nanocomposite structure and possibilities of their modular design","authors":"P. An, N. A. Bulienkov","doi":"10.2472/JSMS.49.3APPENDIX_22","DOIUrl":"https://doi.org/10.2472/JSMS.49.3APPENDIX_22","url":null,"abstract":"A general approach to the study of the structure of all known forms of the solid state and of biological structures is possible on the basis of the concept module that is more general and unambiguous than the lattice . The potentialities of modular design for the deliberate selection of structural components and the estimation of the opportunities of their self-organization due to formation of perfect coherent boundaries between their regularly oriented crystallites in nanocomposites were shown by the examples of two-dimensional Penrose mosaics and three-dimensional biomimetic composite amorphous-Al 2 O 3 - hydroxyapatite - collagen - bound water.","PeriodicalId":377759,"journal":{"name":"Materials Science Research International","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127096794","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
CONNECTING MOLECULAR DYNAMICS AND DISLOCATION DYNAMICS TO CONTINUUM IN HIERARCHICAL SIMULATIONS OF MICROCRACKS IN SOLIDS(Special Issue on Hierarchical Estimations of Materials Strength) 结合分子动力学和位错动力学在固体微裂纹分层模拟中的连续统(材料强度分层估计专刊)
Materials Science Research International Pub Date : 1999-12-15 DOI: 10.2472/JSMS.48.12APPENDIX_241
A. Nakatani, H. Kitagawa, S. Yip
{"title":"CONNECTING MOLECULAR DYNAMICS AND DISLOCATION DYNAMICS TO CONTINUUM IN HIERARCHICAL SIMULATIONS OF MICROCRACKS IN SOLIDS(Special Issue on Hierarchical Estimations of Materials Strength)","authors":"A. Nakatani, H. Kitagawa, S. Yip","doi":"10.2472/JSMS.48.12APPENDIX_241","DOIUrl":"https://doi.org/10.2472/JSMS.48.12APPENDIX_241","url":null,"abstract":"Multiscale approach to crack tip plasticity involves length scales from electronic structure to the continuum, as well as deformation behavior from single dislocation nucleation to plastic-zone shielding. A current challenge is to connect the different levels and methods of simulation in order to study ductile fracture in a more holistic fashion, a goal that cannot be accomplished through any one single simulation. We present two specific examples of potentially useful connections, (1) using molecular dynamics to determine a stress-displacement relation for direct use in continuum-level analysis, and (2) a comparative study of dislocation microstructure evolution by discrete dislocation dynamics and finite-element method. Applications to understanding brittle-ductile behavior in an important metal, α-Fe, are particularly emphasized.","PeriodicalId":377759,"journal":{"name":"Materials Science Research International","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123314607","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
QUANTITATIVE EVALUATION OF PINHOLE DEFECTS IN TiN FILMS PREPARED BY R.F. REACTIVE SPUTTERING(Special Issue on Hierarchical Estimations of Materials Strength) 射频反应溅射制备锡薄膜针孔缺陷的定量评价(材料强度分级评价专刊)
Materials Science Research International Pub Date : 1999-12-15 DOI: 10.2472/JSMS.48.12APPENDIX_265
H. Uchida, S. Inoue, Y. Nakano, K. Koterazawa
{"title":"QUANTITATIVE EVALUATION OF PINHOLE DEFECTS IN TiN FILMS PREPARED BY R.F. REACTIVE SPUTTERING(Special Issue on Hierarchical Estimations of Materials Strength)","authors":"H. Uchida, S. Inoue, Y. Nakano, K. Koterazawa","doi":"10.2472/JSMS.48.12APPENDIX_265","DOIUrl":"https://doi.org/10.2472/JSMS.48.12APPENDIX_265","url":null,"abstract":"Pinhole defects of TiN-coated stainless steels were evaluated potentiodynamically in a deaerated 0.5kmol/m3 H2SO4+0.05kmol/m3 KSCN solution at 298K. The TiN films prepared by radio frequency (r.f.) reactive sputtering exhibited the columnar structure with the preferential ‹220› or ‹111› orientation, and they contained more or less pinhole defects. The critical passivation current density icrit in the TiN-coated specimens decreased considerably with increasing film thickness. Above 1.5μm in thickness, however, there was an increasing tendency in icrit with cracking and/or peeling. The area ratio of pinhole defects was evaluated by the ratio of icrit a coated and a non-coated specimen. The result coincided comparatively well with the true defect area ratio based on the optical micrographs before and after anodically polarized. Such electrochemical method was concluded to be a reliable evaluation technique for the pinhole defects of corrosion-resistive coating.","PeriodicalId":377759,"journal":{"name":"Materials Science Research International","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129517523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
DEFORMATION ANALYSIS OF LASER PROCESSED GRAIN ORIENTED SILICON STEEL SHEET USING MOIRE INTERFEROMETRY(Special Issue on Hierarchical Estimations of Materials Strength) 激光加工晶粒取向硅钢片的莫尔干涉变形分析(材料强度层次估计专刊)
Materials Science Research International Pub Date : 1999-12-15 DOI: 10.2472/JSMS.48.12APPENDIX_291
H. Xie, S. Kishimoto, Jindong Li, D. Zou, F. Dai, N. Shinya
{"title":"DEFORMATION ANALYSIS OF LASER PROCESSED GRAIN ORIENTED SILICON STEEL SHEET USING MOIRE INTERFEROMETRY(Special Issue on Hierarchical Estimations of Materials Strength)","authors":"H. Xie, S. Kishimoto, Jindong Li, D. Zou, F. Dai, N. Shinya","doi":"10.2472/JSMS.48.12APPENDIX_291","DOIUrl":"https://doi.org/10.2472/JSMS.48.12APPENDIX_291","url":null,"abstract":"In this study, the residual deformation of silicon steel sheets with lowered core loss by strong power laser was investigated in combination of two deposited metal layers grating for high temperature with laser moire interferometry method. The silicon steel sheet was processed with different processing parameters under a CO2 and a YAG laser, respectively. The distributions of residual deformation in x and y axes were obtained. The experimental results showed that the silicon steel sheet was under the state of compressive residual strain, and were analyzed in detail.","PeriodicalId":377759,"journal":{"name":"Materials Science Research International","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114824485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
ATOMIC-LEVEL DESCRIPTION OF MATERIAL STRENGTH OF α-Fe(Special Issue on Hierarchical Estimations of Materials Strength) α-Fe材料强度的原子水平描述(材料强度的层次估计专刊)
Materials Science Research International Pub Date : 1999-12-15 DOI: 10.2472/JSMS.48.12APPENDIX_225
Y. Shibutani, G. Krasko, M. Šob, S. Yip
{"title":"ATOMIC-LEVEL DESCRIPTION OF MATERIAL STRENGTH OF α-Fe(Special Issue on Hierarchical Estimations of Materials Strength)","authors":"Y. Shibutani, G. Krasko, M. Šob, S. Yip","doi":"10.2472/JSMS.48.12APPENDIX_225","DOIUrl":"https://doi.org/10.2472/JSMS.48.12APPENDIX_225","url":null,"abstract":"Considering the current developments in multiscale materials modeling and longstanding interest in the mechanical behavior in Fe, we propose a new atomistic description of α-Fe which is an improvement over existing models that do not consider explicitly the magnetic interactions. The proposal is to combine a many-body potential fitted to a database of ab-initio electronic structure calculations with a Stoner model treatment of itinerant ferromagnetism. Using selected results on deformation behavior from the literature, we illustrate the kind of material strength studies that can benefit from the new description, as well as other significant applications which are beyond the capabilities of first-principles approach.","PeriodicalId":377759,"journal":{"name":"Materials Science Research International","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115865522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
COOPERATIVE DISLOCATION GENERATION AT FINITE TEMPERATURES IN LOADED SOLIDS : Transition from Brittle to Ductile Regime(Special Issue on Hierarchical Estimations of Materials Strength) 加载固体有限温度下协同位错的产生:从脆性到延性的转变(材料强度等级估计专刊)
Materials Science Research International Pub Date : 1999-12-15 DOI: 10.2472/JSMS.48.12APPENDIX_234
M. Khantha, M. Ling, V. Vítek
{"title":"COOPERATIVE DISLOCATION GENERATION AT FINITE TEMPERATURES IN LOADED SOLIDS : Transition from Brittle to Ductile Regime(Special Issue on Hierarchical Estimations of Materials Strength)","authors":"M. Khantha, M. Ling, V. Vítek","doi":"10.2472/JSMS.48.12APPENDIX_234","DOIUrl":"https://doi.org/10.2472/JSMS.48.12APPENDIX_234","url":null,"abstract":"This paper describes a theoretical model and a Monte Carlo simulation of cooperative dislocation generation in loaded crystals at finite temperatures. The theoretical work, employing a mean-field approach, is presented for the three-dimensional case when dislocation loops are formed. It describes how extensive plasticity can be initiated in dislocation-free crystals above a critical temperature due to 'homogeneous' cooperative nucleation and expansion of many dislocation loops. The Monte Carlo simulation is carried out to demonstrate the feasibility of the theoretical model. It is performed for a two dimensional case when dislocation dipoles are formed on an underlying lattice under applied loads. The application of this model to the brittle-to-ductile transition and the yielding of whiskers is discussed.","PeriodicalId":377759,"journal":{"name":"Materials Science Research International","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123377208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
CHARACTERIZATION OF INTEGRATED DATA ON INHERENT FLAWS IN ENGINEERING CERAMICS(Special Issue on Hierarchical Estimations of Materials Strength) 工程陶瓷固有缺陷的综合数据表征(材料强度层次估计专刊)
Materials Science Research International Pub Date : 1999-12-15 DOI: 10.2472/JSMS.48.12APPENDIX_285
T. Hoshide, Hidehiko Hiramatsu
{"title":"CHARACTERIZATION OF INTEGRATED DATA ON INHERENT FLAWS IN ENGINEERING CERAMICS(Special Issue on Hierarchical Estimations of Materials Strength)","authors":"T. Hoshide, Hidehiko Hiramatsu","doi":"10.2472/JSMS.48.12APPENDIX_285","DOIUrl":"https://doi.org/10.2472/JSMS.48.12APPENDIX_285","url":null,"abstract":"Integrated data on inherent flaws in engineering ceramics were characterized for quantitative analyses of them. For this purpose, a ceramic strength database utilized on a personal computer was temporarily constructed so that collected data on flaws could be compiled as records in the database. It was clarified that distributions of the equivalent crack length l for several ceramics were nearly fitted to normal distribution functions. The distribution of l was investigated for every type of flaw, and it was found to shift toward a longer length region in the order of embedded, surface, and corner flaws. The flaw data were also correlated with strength and microstructural parameters. In the relation to the strength, the strength was reduced as a whole with the decrease in the crack length, while the lower bound of strength scatter was predicted by a modified relation of the fracture mechanics criterion for long cracks. It was revealed that the flaw size increased with the increase in the grain size or the porosity. The relation of a Petch-Hall type was observed between the grain size and the mean strength estimated by using the mean value of l. Some useful suggestions were offered for the improvement of ceramic strength.","PeriodicalId":377759,"journal":{"name":"Materials Science Research International","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130271408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
MESOSCOPIC DYNAMICS ON DISLOCATION PATTERNING IN FATIGUED MATERIAL BY CELLULAR AUTOMATA(Special Issue on Hierarchical Estimations of Materials Strength) 基于元胞自动机的疲劳材料位错模式的介观动力学(材料强度层次估计专刊)
Materials Science Research International Pub Date : 1999-12-15 DOI: 10.2472/JSMS.48.12APPENDIX_258
Y. Shibutani
{"title":"MESOSCOPIC DYNAMICS ON DISLOCATION PATTERNING IN FATIGUED MATERIAL BY CELLULAR AUTOMATA(Special Issue on Hierarchical Estimations of Materials Strength)","authors":"Y. Shibutani","doi":"10.2472/JSMS.48.12APPENDIX_258","DOIUrl":"https://doi.org/10.2472/JSMS.48.12APPENDIX_258","url":null,"abstract":"A typical pattern formation of collective dislocations under cyclic loading, the persistent slip bands (PSBs), is simulated by the cellular automata (CA) method. The local rule of CA taken in the present paper is the weighted addition modulo two rule. Each weight is chosen referring to the reaction-diffusion coupled differential equations with respect to immobile and mobile dislocation densities. The mesoscopic evolution of the immobile dislocation density is driven by the space-oriented bifurcation (Turing instability) and results in the ladder-type self-organization. Instability related to the space- and the time-oriented bifurcations is in detail discussed in a one-dimensional model. A stress amplitude-like parameter and two diffusion coefficients of the immobile and mobile dislocation densities highly affect the sequential evolution process. Finally, a two-dimensional hexagonal cell model representing a {111} glide plane of the fcc crystal is proposed. The same local rule is applied along the three preferential sliding directions for easy description of mutual interaction between cells. The evolution yields a localized isotropic and a one-directional anisotropic flow patterns of dislocation densities according to the combination of the three diffusion coefficients.","PeriodicalId":377759,"journal":{"name":"Materials Science Research International","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121740903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
A MICROMECHANICAL MODELING APPROACH TO THE MECHANICAL PROPERTIES OF TEXTILE ELASTOMERIC COMPOSITES(Special Issue on Recent Advances of Composites in Asia and Australasia) 纺织弹性体复合材料力学性能的微力学建模方法(亚洲和澳大拉西亚复合材料最新进展专刊)
Materials Science Research International Pub Date : 1999-09-15 DOI: 10.2472/JSMS.48.9APPENDIX_189
Zheng-ming Huang, S. Ramakrishna, A. Tay
{"title":"A MICROMECHANICAL MODELING APPROACH TO THE MECHANICAL PROPERTIES OF TEXTILE ELASTOMERIC COMPOSITES(Special Issue on Recent Advances of Composites in Asia and Australasia)","authors":"Zheng-ming Huang, S. Ramakrishna, A. Tay","doi":"10.2472/JSMS.48.9APPENDIX_189","DOIUrl":"https://doi.org/10.2472/JSMS.48.9APPENDIX_189","url":null,"abstract":"Elastomer-based fibrous composites are characterized by a significantly nonlinear whilst usable deformation range under external loads, which provides a great challenge to the development of a constitutive description for the composites. This paper presents a micromechanical modeling approach to the entire stress-strain response of such composites based on knowledge of constituent fiber and matrix properties only. A new and accurate rubber-elasticity theory is applied to describe stress-strain behavior of the elastomer matrix material. A bridging model is used to determine internal stresses generated in the constituent materials, and the overall compliance matrix of the composite at each load level follows easily. The proposed model has been applied to an interlock weft knitted polyester fiber fabric reinforced polyurethane matrix composite. Reasonably good correlation has been found between the theoretical and experimental results.","PeriodicalId":377759,"journal":{"name":"Materials Science Research International","volume":"7 9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128763974","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
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