Spark Plasma Sintered AlN-BN Composites and Its Thermal Conductivity

被引：0

作者：

赵海洋 ^{[1
]}

王为民 ^{[1
]}

机构：

[1] State Key Laboratory of Advanced Technology for Materials Synthesis and Processing,Wuhan University of Technology

来源：

Journal of Wuhan University of Technology(Materials Science) | 2008年 / 06期

基金：

国家教育部博士点专项基金资助;

关键词：

AlN-BN composites; thermal conductivity; SPS;

D O I：

暂无

中图分类号：

TB33 [复合材料];

学科分类号：

0805 ; 080502 ;

摘要：

A series of samples of hexagonal boron nitride-aluminum nitride ceramic com-posites with different amounts of CaF2 as sintering aid were prepared by spark plasma sintered at 1700-1850 ℃ for 5 min.The addition of CaF2 effectively lowered the sintering temperature and promoted the densification of AlN-BN composites.With the increase of sintering temperature,the density increased,and the contiguity of AlN grains enhanced in AlN-BN composites.Thermal conductivity of AlN-BN composites increased with the increase in CaF2 content and sintering temperature,and there is a maximum value of 78.6 W·m-1·K-1 when the sample with 3wt% CaF2 sintered at 1800 ℃.

引用

页码：866 / 869

页数：4

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