High-thermal conductivity of Si3N4 ceramics: research status and development tendency

被引：0
|
作者：
Wang, Tian [1 ]
Long, Si-Yuan [1 ]
Wang, Peng [1 ]
机构：
[1] College of Material Science and Engineering, Chongqing University, Chongqing, China
来源：
Gongneng Cailiao/Journal of Functional Materials | 2015年 / 46卷 / 08期
关键词：
Oxygen - Sintering - Ceramic materials - Grain boundaries - Silicon nitride;
D O I：
10.3969/j.issn.1001-9731.2015.08.002
中图分类号：
学科分类号：
摘要：
This paper deals with the recent developments of high thermal conductivity silicon nitride ceramics. The factors reducing the thermal conductivity include grain boundary phases of low thermal conductivity and lattice defeats in Si3N4 crystals. In this paper, reducing the number of grain boundary phase and the amount of lattice oxygen, changing the way of grain boundary phases exist are discussed to choose the suitable raw material and sintering additive, and high thermal conductivity Si3N4 ceramic can be obtained. ©, 2015, Journal of Functional Materials. All right reserved.
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页码：08009 / 08012
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