Influence of CaO-Y2O3 as sintering aid on the microstructure and properties of AlN ceramics

被引：0
|
作者：
Huang, XL [1 ]
Ma, QZ
Li, F
Liu, HQ
机构：
[1] Beijing Informat Technol Inst, Beijing 100101, Peoples R China
[2] Beijing Vacuum Elect Res Inst, Beijing 100016, Peoples R China
来源：
JOURNAL OF INORGANIC MATERIALS | 2002年 / 17卷 / 02期
关键词：
aluminum nitride; calcia-yttria; microstructure; thermal conductivity;
D O I：
暂无
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The property and microstructure of hot-pressure and normal-pressure sintered AlN ceramics doped with CaO-Y2O3 were studied in this paper, The results obtained show that the second phase in the hot-pressure sintered AlN is Y3Al5O12 and that in the normal-pressure sintered AlN is Y3Al5O12 and Ca3Y2O6. The volume fraction of the second phase and the oxygen content dissolved in the AlN lattice of hot-pressure sintered AlN ceramics are lower than that of normal-pressure sintered AlN. The hot-pressure sintered AlN ceramic has good microstructure and high thermal conductivity of 200W/m.K.
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页码：277 / 282
页数：6
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