Materials Reports 2021, Vol. 35 Issue (Z1): 180-185 |
INORGANIC MATERIALS AND CERAMIC MATRIX COMPOSITES |
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Research on Effect of Porosity on the Strength of Ceramic Matrix Composites |
LU Mingyuan1, HAN Baohong1, HE Wanheng1, NI Xinhua1,2, YU Jinfeng1
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1 Shijiazhuang Campus of Army Engineering University, Shijiazhuang 050003, China 2 The Army Infantry school, Nanchang 330100, China |
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Abstract Ceramic matrix composites with strong structural characteristics, is a kind of multiphase materials.Its mechanical properties and the regularity of damage not only depends on the material properties of components, but also depends on the mesoscopic structure characteristics.Past for reinforcement of composite materials, usually by adding inclusions, makes the interface strength is improved.But as a result of the mixed with non-uniformity, and the preparation process to clean air and other impurities, makes the substrate near the interface of substrate, in particular, inevitable existence of the pore, pore under external load when the crack and then expand, causing material failure.So by studying the material under external load impact, its performance in the damage evolution of mesoscopic level and macro failure, the relationship between material from the mesoscopic level analysis the rule of damage evolution and fracture mechanism, can not only provide theoretical guidance for the preparation of composite materials, but also through the further optimization of material mesoscopic structure to achieve the purpose of design materials. In this paper, the current ceramic matrix composites, has introduced the preparation of defect, defect cause material damage failure occurred, and the research status of the influence of the effective strength of the composites, the composite material related research achievements and disadvantages, on the basis of combining the simulation modeling analysis method for composite material next effective strength problem research was discussed.
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Published: 16 July 2021
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Fund:National Natural Science Foundation of China (11272355). |
About author:: Mingyuan Lu enrolled the army vehicles and electrical engineering at the University of Shijiazhuang Campus engineering postgraduate in 2016.He is majoring in materials science and engineering.Under the guidance of professor Han Baohong and He WanHeng lecturer for research.Research work mainly around the base of advanced ceramic materials,mechanical performance analysis,Mechanical properties characterization.Baohong Han obtained his Bachelor degree in 1991 from Beijing university of technology, automatic control system, obtained his Master degree in 1998 from the department of mechanical engineering, Taiyuan University of Science.He is currently a professor and master tutor in Army Engineering Campus of University of Shi-jiazhuang. He was the general armaments department “1153” project third level training object.Enjoy the army 2010 outstanding professional and technical personnel 3 kinds of post allowance,in 2017, was awarded a prize of excellent teachers of Chinese national mechanical institute of Xu Zhiguan mechanics,teaching supervision in 2018 was hired as campus expert.As a project leader and backbone 10 to participate in teaching research projects each 20 papers writing teaching research.As a project leader host and attend a including the national natural science fund, the original assembly and test technology, the national defense pre-research and so on many headquarters level scientific research projects.Ammunition modified equipment developed has been applied to forces, form good military benefits, complete defense science, technology and report four,he has published more than 60 academic papers,editor-in-chief and co-editor of 8 textbooks,applied for 6 utility model patents,4 software copyrights. |
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