DIAMOND/AL METAL-MATRIX COMPOSITES FORMED BY THE PRESSURELESS METAL INFILTRATION PROCESS

被引：96

作者：

JOHNSON, WB

SONUPARLAK, B

机构：

[1] Lanxide Corporation, 19714-6077, Delaware, Newark, 1300 Marrows Road

来源：

JOURNAL OF MATERIALS RESEARCH | 1993年 / 8卷 / 05期

关键词：

D O I：

10.1557/JMR.1993.1169

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Diamond particles are unique fillers for metal matrix composites because of their extremely high modulus, high thermal conductivity, and low coefficient of thermal expansion. Diamond reinforced aluminum metal matrix composites were prepared using a pressureless metal infiltration process. The diamond particulates are coated with SiC prior to infiltration to prevent the formation of Al4C3, which is a product of the reaction between aluminum and diamond. The measured thermal conductivity of these initial diamond/Al metal matrix composites is as high as 259 W/m-K. The effects of coating thickness on the physical properties of the diamond/Al metal matrix composite, including Young's modulus, 4-point bend strength, coefficient of thermal expansion, and thermal conductivity, are presented.

引用

页码：1169 / 1173

页数：5

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