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Effects of Temperature Induced Thermal Expansion and Oxidation on the Charpy Impact Property of C/C Composites米应映,燕青芝,LI Xianhui,HONG Ming,CAO Meiqi,ZHANG XiaoxinInstitute of Nuclear and New Energy.... In this study, Charpy impact tests at a temperature range of 25 to 1 200 ℃ were carried out on C/C composites to verify the effects of temperature induced thermal expansion and oxidation on their impact......
Effect of Microstructure Scale on Negative Thermal Expansion of Antiperovskite Manganese NitrideZhonghua Sun1,2,Xiaoyan Song11. College of Materials Science and Engineering, Key Laboratory of Advanced Functional Materials,Education Ministry of China, Beijing University of Technology摘 要:The negative thermal expansion(NTE)properties of the antiperovskite......
Effect of Microstructure on Thermal Expansion Coeffcient of 7A09 Aluminum AlloyHongzhi Ji, Lin Yuan and Debin Shan School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China摘 要:The relationship between microstructure evolution and coeffcient of thermal expansion (CTE) of 7A09 alu- minum alloy was investigated......
Mechanical and Thermal Expansion Properties of SiC_p/ZAlSi9Mg Composites Produced by Centrifugal Casting王开,JIANG Tao,HUANG Zhili,XUE Hansong,YANG Dazhuang,ZHU ZizongCollege of Materials Science...,and the fracture was caused by the desorption of SiC particles from matrix alloy.The coefficient of thermal expansion(CTE) of the SiCp / Al composites in the range of 20 and 100 ℃ was determined as 16.67×10-6......
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and designable thermal expansion property, excellent thermal conductivity and low density, have obtained extensive application in the aviation field[3-4]. Recently, the Sip/Al composites have been developed with low expansion ((7.4-9.0)×10-6 ℃-1), high thermal conductivity (100-180 W/(m?℃)), low density (2.4-2.6 g/cm3), excellent machining property and recyclability, which have received growing......
Numerical simulation on thermal expansion coefficient of 3D braided C/C compositesChun-Xia Hu1,He-Jun Li1,Shou-Yang Zhang1,Yong-Shan Song21. State Key Laboratory of Solidification Processing, Carbon...">To effectively get the thermal expansion coefficient(CTE) of three-dimensional(3D) braided C/C composites and study the variations, a VC?? program with graphical user interfaces was obtained, based......
of thermal expansion (7.5×10-6 ℃-1) and high thermal conductivity ranging from 126 to 157.9 W/(m·℃). With increasing temperature, the specific capacity and the average coefficient of thermal expansion increases monotonically, the thermal diffusivity and the thermal conductivity decrease gradually. The specific capacity, average coefficient of thermal expansion, thermal diffusivity and the thermal......
of SiC decreases gradually from the bottom to the walls. Accordingly, the thermal conductivities of bottom center and walls are 178 and 164 W·m-1·K-1, the coefficients of thermal expansion (CTE) are 8.2... carbide aluminum-base composites; electronic packaging; semi-solid thixoforming; thermal conductivity; coefficient of thermal expansion......
树脂炭试样具有相对稳定的摩擦曲线,在较大热应力的作用下,光滑层热解炭试样的摩擦曲线不稳定,影响其摩擦性能. 关键词:炭/炭复合材料;热膨胀系数;热应力场;摩擦性能 中图分类号:TB 332 文献标志码:A Effect of thermal expansion on stress field of C/C composites... frictional behavior. Key words: C/C composites; thermal expansion coefficient; thermal stress filed; frictional behavior 炭/炭复合材料作为飞机制动材料始于20世纪70年代初期,由于其具有高比强,高比模,低密度,优良的导热性能和摩擦性能以及高承载能力,使用寿命长等突出优点,在20世......