Microstructure and mechanical properties of Al2O3-TiC/Al in situ composites

被引：1

作者：

Chen, Hongmei ^{[1
]}

Yu, Huashun ^{[1
]}

Zhang, Jing ^{[1
]}

Zhang, Lin ^{[1
]}

Min, Guanghui ^{[1
]}

机构：

[1] Shandong Univ, Sch Mat Sci & Engn, Jinan 250061, Peoples R China

来源：

Experimental Mechanics in Nano and Biotechnology, Pts 1 and 2 | 2006年 / 326-328卷

关键词：

in situ reaction; aluminum-based composites; microstrcture; mechanical properties;

D O I：

10.4028/www.scientific.net/KEM.326-328.1857

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

The Al2O3-TiC/Al composites were prepared by injecting CO2 gas into Ti contained Al-Si alloy melts. The microstructure of the composites was examined by XRD, SEM and TEM. It was indicated that both Al2O3 and TiC particles can be formed by the in still reaction of CO2 with Ti and Al in the melten alloys. The Al2O3 and TiC particles in size of 0.3 similar to 1.5 mu m distributed uniformly in the matrix. The volume fraction of the particles is mainly depend upon the time of CO, injection.The tensile strength at room temperature of the composites can reach 346.08MPa and the hardness is 149.6MPa HBS, repectively, which are higher than those of the matrix alloy.

引用

页码：1857 / 1860

页数：4

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