Analysis of the crystal-grain and grain-boundary phase in aluminium nitride by selected dissolution

被引：0

作者：

Yabuki, M ^{[1
]}

Hayashi, M ^{[1
]}

Kasori, M ^{[1
]}

Endo, H ^{[1
]}

Kozuka, S ^{[1
]}

机构：

[1] TOSHIBA RES CONSULTING CORP,SAIWAI KU,KAWASAKI,KANAGAWA 210,JAPAN

来源：

BUNSEKI KAGAKU | 1996年 / 45卷 / 12期

关键词：

selected dissolution; grain boundary phase; aluminium nitride;

D O I：

暂无

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A selected-dissolution method was investigated in order to analyze a crystal-grain and grain-boundary phase in aluminium nitride which was used as a high thermal-conductivity substrate. Unreacted Y2O3 in the sample was dissolved by 1.5 M hydrochloric acid. A crystal in the residual sample after hydrochloric acid dissolution was dissolved by 2 M sodium hydroxide. The residue which was not dissolved by them was used to determine the grain-boundary phase. EDTA titration, acid-base titration, ICP-AES and X-ray diffraction were used to analyze the composition of the crystal-grain and grain-boundary phase. In the aluminium nitride, to which Y2O3 was added, two grain-boundary phases were constructed (Y3Al5O12 and YAlO3). Also, it was confirmed that they influence the thermal conductivity.

引用

页码：1133 / 1137

页数：5