Effect of Heat Treatment on Microstructure and Properties of Sip/Al Composites

被引：0

作者：

Liu, Meng ^{[1
]}

Wan, Hong ^{[1
]}

Zhang, Hong ^{[1
]}

Bai, Shu-xin ^{[1
]}

机构：

[1] Natl Univ Def Technol, Coll Aerosp & Mat Engn, Changsha 410073, Hunan, Peoples R China

来源：

PROCEEDINGS OF THE 7TH NATIONAL CONFERENCE ON CHINESE FUNCTIONAL MATERIALS AND APPLICATIONS (2010), VOLS 1-3 | 2010年

关键词：

Sip/Al composites; heat treatment; configuration evolution; changes of the properties;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The evolution of silicon phase configuration and the changes in hermeticity, bend strength, thermal conductivity and coefficients of thermal expansion of Sip/Al composites during different kinds of heat treatment were investigated in this article. It is discovered that the configuration evolution during heat treatment is as follows: the corners and edges of the silicon particles are dissolved; the small silicon particles are dissolved and disappeared finally; the big silicon particles become bigger and reticular. It is also discovered that, after 420 degrees C x 1h heat treatment, the changes of the hermeticity of Sip/Al composites are not obvious; however, the bend strength, thermal conductivity and coefficients of thermal expansion decreased obviously; after 600 degrees C x 1h and 600 degrees C x 4h heat treatment, the lacunae in Sip/Al composites increased obviously, which greatly affect the properties of the composites.

引用

页码：678 / 683

页数：6

共 10 条

[1] DUAN F, 2000, METAL PHYS
[2] Jacobson DM, 2000, POWDER METALL, V43, P200
[3] Effects of thermal processing on thermal expansion coefficient of a 50 vol.% SiCP/Al composite
Kim, BG
Dong, SL
Park, SD
[J]. MATERIALS CHEMISTRY AND PHYSICS, 2001, 72 (01) : 42 - 47
[4] LIN F, 2006, MAT REV, V20, P105
[5] SHEN J, 2000, POWDER METALLURGY TE, V18, P208
[6] Wang Xiao-feng, 2009, Chinese Journal of Nonferrous Metals, V19, P477
[7] Yang F. L., 2009, J MECH ENG, V45, P253
[8] Yang Fu-liang, 2007, Chinese Journal of Nonferrous Metals, V17, P1166
[9] [杨伏良 Yang Fuliang], 2009, [粉末冶金技术, Powder Metallurgy Technology], V27, P277
[10] ZHANG Wei, 2006, MAT REV, V20, P348

← 1 →