Effects of two-step sintering on the microstructure of Si3N4

被引:20
作者
Huang, JL [1 ]
Din, LM [1 ]
Lu, HH [1 ]
Chan, WH [1 ]
机构
[1] CHINESE MIL ACAD,DEPT MECH ENGN,FENGSHAN,TAIWAN
关键词
D O I
10.1016/0272-8842(95)00068-2
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 microstructure of two-step sintered silicon nitride was studied. An investigation was undertaken concentrating on the effects of microstructure developed after the initial stage sintering on the grain size distribution and aspect ratio in beta-grains during the final stage of sintering. Experimental results indicated that the grain size increased, grain size distribution became wider, and more volume of large grains was developed with increase of presintering temperature and time. The aspect ratio could increase or decrease with presintering temperature, depending on the duration of the initial stage sintering.
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页码:131 / 136
页数:6
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