Effect of h-BN content on the sintering properties of SiC-YAG-BN multiphase ceramics

被引：0

作者：

Guo Xingzhong ^{[1
,2
]}

Yang Hui ^{[1
,2
]}

Ma Qi ^{[1
]}

Li Haimiao ^{[1
]}

Fu Peixin ^{[3
]}

Gao Lihua ^{[3
]}

Li Zhiqiang ^{[3
]}

机构：

[1] Zhejiang Univ, Dept Mat Sci & Engn, Hangzhou 310027, Zhejiang, Peoples R China

[2] Zhejiang Univ, Green Bldg Mat & Appl Technol Engn Res Ctr, Hangzhou 310027, Zhejiang, Peoples R China

[3] Zhejiang Dongxin Seals Ltd Co, Yueqing 325604, Peoples R China

来源：

RARE METAL MATERIALS AND ENGINEERING | 2008年 / 37卷

关键词：

silicon carbide; multiphase ceramics; boron nitride;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The SiC-YAG-BN multiphase ceramics were pressureless sintered with YAG as sintering addition and h-BN as weak phase. The effects of h-BN content on the bulk density, compositions and microstructure of multiphase ceramics were analyzed by XRD and SEM. The results show that the sintering density of the multiphase ceramics decreases and the porosity increases with the increase of h-BN content. The weak soakage between YAG and h-BN leads to the weak combination among h-BN, SiC and YAG, the h-BN with sheet shape forms bracket structure to restrain the sintering the ceramic; but it achieves the crack deflexion, crack deplete and microcrack to increase the toughness of the ceramic.

引用

页码：565 / 567

页数：3

共 19 条

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