Thermal Expansion of Al Matrix Composites Reinforced with Hybrid Micro-/nano-sized Al2O3 Particles

被引：31
|
作者：
Lei, Zhibo [1 ]
Zhao, Ke [1 ]
Wang, Yiguang [1 ]
An, Linan [2 ]
机构：
[1] Northwestern Polytech Univ, Sch Mat Sci & Engn, Xian 710072, Peoples R China
[2] Univ Cent Florida, Dept Mat Sci & Engn, Adv Mat Proc & Anal Ctr, Orlando, FL 32816 USA
来源：
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY | 2014年 / 30卷 / 01期
关键词：
Metal-matrix composites (MMCs); Thermal properties; Hybrid particles; CERAMIC PARTICLES; COEFFICIENTS; BEHAVIOR;
D O I：
10.1016/j.jmst.2013.04.022
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The thermal expansion behavior of aluminum matrix composites reinforced with hybrid (nanometer and micrometer) Al2O3 particles was measured between 100 and 600 degrees C and compared to theoretical models. The results revealed that the nanoparticle concentration had significant effect on the thermal expansion behavior of the composites. For the composites with lower nanoparticle concentration, their coefficient of thermal expansion (CTE) is determined by a stress relaxation process. While for the composites with higher nanoparticle concentration, their CTE is determined by a percolation process.
引用
收藏
页码：61 / 64
页数：4
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