Effect of Fe and Cr addition on the sintering behavior of ZrB2 produced by self-propagating high-temperature synthesis

被引:57
作者
Mishra, SK [1 ]
Das, SK [1 ]
Ray, AK [1 ]
Ramachandrarao, P [1 ]
机构
[1] Natl Met Lab, Jamshedpur 831007, Bihar, India
关键词
D O I
10.1111/j.1151-2916.2002.tb00540.x
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
An investigation of the sintering behavior of ZrB2 powder with Fe and Cr (0 to 20 wt%) addition was conducted. It was observed that Fe addition helps to enhance the density of ZrB2 only up to 10 wt%. Further addition of Fe degrades the sintering by segregation of Fe-rich phases. Formation of a eutectic phase containing a Fe:Zr ratio of 92.57:7.43 was also found in Fe-added samples. The addition of Cr to a ZrB2 matrix was found to result in swelling of the samples, leading to several cracks.
引用
收藏
页码:2846 / 2848
页数:3
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