EVALUATION OF GLASSY PHASE IN SINTERED SILICON-NITRIDE BY LOW-TEMPERATURE SPECIFIC-HEAT MEASUREMENTS

被引：10
作者：
WATARI, K
ISHIZAKI, K
MORI, K
机构：
[1] NAGAOKA UNIV TECHNOL,SCH MECH ENGN,DEPT MAT SCI & ENGN,NAGAOKA,NIIGATA 94021,JAPAN
[2] TOYAMA UNIV,COLL LIBERAL ARTS,TOYAMA 930,JAPAN
来源：
JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1991年 / 74卷 / 01期
关键词：
D O I：
10.1111/j.1151-2916.1991.tb07328.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 specific heat of HIP sintered Si3N4 with 3 mol% Y2O3 and 3 mol% Al2O3 additives was measured at different temperatures ranging from 2 to 10 K, in order to confirm the presence of a glassy phase in the sintered body. The grainboundary glassy phase in the sintered Si3N4 was evaluated by specific heat measurements. The difference between the experimental value and the lattice specific heat calculated from the Debye theory confirmed the existence of a glassy phase in sintered Si3N4.
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页码：244 / 246
页数：3
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