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VARIATION OF ALUMINUM CONCENTRATION IN BETA'-SIALON GRAINS FORMED DURING LIQUID-PHASE SINTERING OF SI3N4-AL2O3-ND2O3

被引：8
作者：
KIM, NK
KIM, DY
KRANZMANN, A
BISCHOFF, E
KANG, SJL
机构：
[1] SEOUL NATL UNIV,DEPT INORGAN MAT ENGN,SEOUL 151742,SOUTH KOREA
[2] MAX PLANCK INST MET RES,W-7000 STUTTGART 80,GERMANY
[3] KOREA ADV INST SCI & TECHNOL,DEPT MAT SCI & ENGN,DAEJON 305701,SOUTH KOREA
来源：
JOURNAL OF MATERIALS SCIENCE | 1993年 / 28卷 / 16期
关键词：
D O I：
10.1007/BF01154942
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The aluminium concentration in beta'-sialon grains of the 74Si3N4 (alpha)-6Al2O3-20Nd2O3 (Wt %) specimen has been determined. As the alpha-beta' transformation proceeded, the average aluminium concentration in beta'-sialon grains decreased. For individual beta' grains, the aluminium concentration at the centre was higher than that at the edge. The observed variation of aluminium concentration has been explained in terms of the compositional change of the liquid matrix during sintering.
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页码：4355 / 4358
页数：4
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