High-temperature metastability of cubic spinel Si3N4

被引：30

作者：

Sekine, T ^{[1
]}

Mitsuhashi, T ^{[1
]}

机构：

[1] Natl Inst Mat Sci, Adv Mat Lab, Tsukuba, Ibaraki 3050044, Japan

来源：

APPLIED PHYSICS LETTERS | 2001年 / 79卷 / 17期

关键词：

D O I：

10.1063/1.1412826

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The metastability of cubic spinel Si3N4 has been investigated at high temperature, up to about 1800 K, and in Ar atmosphere by quench experiments and differential thermal analyses coupled with thermogravimetry. The results indicate that the enthalpy change from spinel-type Si3N4 to beta -Si3N4 is -29.2 +/-3.5 kJ/mol and that the transformation starts at 1670 K. The high-temperature metastability of spinel Si3N4 may provide various directions for industrial applications. (C) 2001 American Institute of Physics.

引用

页码：2719 / 2721

页数：3

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