Transmission electron microscopy studies of La2O3-doped α-SiAlON ceramics

被引：0
|
作者：
Turan, S
Mandal, H
Kara, F
Knowles, KM
机构：
[1] Anadolu Univ, Dept Ceram Engn, Eskisehir, Turkey
[2] Univ Cambridge, Dept Mat Sci & Met, Cambridge CB2 3QZ, England
来源：
ELECTRON MICROSCOPY AND ANALYSIS 1999 | 1999年 / 161期
关键词：
D O I：
暂无
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
alpha-SiAlON is able to accommodate cations into its crystal structure if the cations are sufficiently small in size, thus helping to reduce the volume of the remnant grain boundary phase after processing. In this study, the possibility of being able to introduce the relatively large La3+ cation into the alpha-SiAlON crystal structure has been investigated. For this, alpha-SiAlONs doped with (i) La2O3 and CaO and (ii) La2O3 and Yb2O3 were produced. Energy dispersive X-ray spectrometry results confirm that lanthanum can indeed be incorporated into the alpha-SiAlON structure if other smaller cations are also present.
引用
收藏
页码：417 / 420
页数：4
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