Thermal Conductivities of LaPO4/Al2O3 Composites Fabricated by SPS

被引：0
|
作者：
Du, Aibing [1 ]
Wu, Ruifen [1 ]
Qu, Zhixue [1 ]
Wan, Chunlei [1 ]
Pan, Wei [1 ]
机构：
[1] Tsinghua Univ, Dept Mat Sci & Technol, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China
来源：
HIGH-PERFORMANCE CERAMICS VI | 2010年 / 434-435卷
关键词：
Thermal conductivity; LaPO(4)/Al(2)O(3) composites; SPS; MECHANICAL-PROPERTIES; MONAZITE;
D O I：
10.4028/www.scientific.net/KEM.434-435.123
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 thermal conductivities of the LaPO(4)/Al(2)O(3) composites that were fabricated by spark plasma sintering (SPS) were determined. The results revealed that their thermal conductivities displayed nearly a slow decrease with increasing temperature from 25 degrees C to 800 degrees C, having the classic 1/T dependence. In addition, the conductivities of the composites decrease monotonously with increasing the LaPO(4) content because of the lower thermal conductivity of LaPO(4). The calculated conductivities of the composites using Maxwell equation match well the experimental values at both the end members of LaPO(4) and Al(2)O(3) being the continuous phase, but showing a little deviation at intermediate composition.
引用
收藏
页码：123 / 125
页数：3
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