Microstructure of (Y+Sm)-α-sialon with α-sialon seeds

被引：17
|
作者：
Chen, WW [1 ]
Sun, WY [1 ]
Li, YW [1 ]
Yan, DS [1 ]
机构：
[1] Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China
来源：
JOURNAL OF MATERIALS RESEARCH | 2000年 / 15卷 / 10期
关键词：
D O I：
10.1557/JMR.2000.0319
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
(Y + Sm)-alpha-sialon compositions with and without alpha-sialon seeds were hot-pressed at 1800 degrees C for 1 h and then heat treated at 1800 degrees C for 4 h. The effect of alpha-sialon seeds on the microstructures of (Y + Sm)-a-sialon ceramics was studied by scanning electron microscopy. The results showed that hot-pressed alpha-sialon ceramics with elongated grains can be fabricated by adding 10 wt% seeds. Through heat treatment, the seed-free composition could also develop into a similar microstructure with big elongated grains dispersed in a fine matrix.
引用
收藏
页码：2223 / 2227
页数：5
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