Effect of CNTs on Mechanical Properties of SiCp/Cu Composites

被引：0

作者：

Wang, Chenyang ^{[1
]}

Fan, Bingbing ^{[1
]}

Sun, Bing ^{[1
]}

Wang, Binbin ^{[1
]}

Li, Wen ^{[1
]}

Chen, Hao ^{[1
]}

Pian, Xiaoxuan ^{[1
]}

Zhao, Biao ^{[1
]}

Zhang, Rui ^{[1
]}

机构：

[1] Zhengzhou Univ, Sch Mat Sci & Engn, Henan 450001, Peoples R China

来源：

HIGH-PERFORMANCE CERAMICS VIII | 2014年 / 602-603卷

关键词：

SiCp/Cu composites; CNTs; mechanical properties;

D O I：

10.4028/www.scientific.net/KEM.602-603.590

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

SiCp/Cu composites were prepared by vacuum hot-pressing at 770 degrees C for 1.5 h under 30MPa. The composites were enhanced by CNTs with different volume fractions from 0 vol. % to 4 vol. %. Three-step approach wrapping process was introduced to prepare composite powders. XRD and SEM techniques were used to characterize the samples. It is found that the core-shell structure composed of SiC core and Cu shell was formed in the composite particles. Optimized volume fraction of CNTs is 1 vol. %. Minimum Porosity and maximum Hardness is about 0.84% and 2.31GPa, respectively. But maximum Flexural strength was measured as 248MPa for samples containing 2 vol. % CNTs. Flexural strength was improved by the bridge effect caused by the increased CNTs.

引用

页码：590 / 593

页数：4

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