Microstructure refinement of alumina Optimisation by gas pressure sintering process

被引：3
|
作者：
Nivot, C. [1 ]
Valdivieso, F. [1 ]
机构：
[1] Ecole Natl Super Mines, CNRS, Ctr SMS, Dept Ceram Speciales,UMR 5146, F-42023 St Etienne 2, France
来源：
CERAMICS INTERNATIONAL | 2008年 / 34卷 / 07期
关键词：
sintering; grain growth; Al2O3; gas pressure sintering;
D O I：
10.1016/j.ceramint.2007.05.002
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：
This paper investigates densification and grain growth evolutions during gas pressure sintering of alumina. Isothermal sintering runs are performed under different nitrogen pressures: atmospheric pressure and 2 MPa. Experimental data are fitted thanks to constitutive laws in order to understand nitrogen pressure effect on densification and grain growth mechanisms of a fine-grained alumina. An optimal run of densification is proposed as an application of these results. (C) 2007 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
引用
收藏
页码：1595 / 1602
页数：8
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