DENSIFICATION AND SHRINKAGE DURING LIQUID-PHASE SINTERING

被引:52
作者
KANG, SJL
KIM, KH
YOON, DN
机构
[1] Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Seoul
关键词
DENSIFICATION; SHRINKAGE; PORES; LIQUID PHASE; SINTERING;
D O I
10.1111/j.1151-2916.1991.tb06900.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
The process of densification and shrinkage during the final stage of liquid-phase sintering is described. The densification occurs by the liquid filling of pores during grain growth. The pore filling results in an instantaneous drop of liquid pressure in the compact and causes gradual accommodation of grain shape. The grain shape accommodation by the growth causes the specimen shrinkage. At the same time, the grains tend to restore their spherical shape, resulting in microstructure homogenization around filled pores. The process of densification and shrinkage appears to be determined by the growth of grains during sintering.
引用
收藏
页码:425 / 427
页数:3
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