PREPARATION OF MULTICATION ALPHA-SIALON CONTAINING STRONTIUM

被引：64

作者：

HWANG, CJ ^{[1
]}

SUSNITZKY, DW ^{[1
]}

BEAMAN, DR ^{[1
]}

机构：

[1] DOW CHEM CO USA,ANALYT SCI LAB,MIDLAND,MI 48667

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1995年 / 78卷 / 03期

关键词：

D O I：

10.1111/j.1151-2916.1995.tb08219.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 possibility of having Sr as an interstitial metal cation in alpha-SiAlON has been investigated in two systems: a single-cation system (Si3N4-SrO-AlN) and a multication system (Si3N4-(Y2O3/SrO/CaO)-AlN). It was found that Sr alone does not form alpha-SiAlON and that Sr could only be accommodated in alpha-SiAlON in conjunction with Y and Ca. The Sr content of alpha-SiAlON increased as the total content of (Y + Ca) increased and appeared to reach a limit at 0.5 at.%, or 0.15 atom per alpha-SiAlON. Unexpectedly, some of the alpha-SiAlON that contained (Sr + Y + Ca) was present as laths or fibers with the c-axis perpendicular to the hot-press direction.

引用

页码：588 / 592

页数：5

共 26 条

[11] RIETVELD REFINEMENTS FOR CALCIUM AND YTTRIUM CONTAINING ALPHA-SIALONS [J].