Cubic Si6-zAlzOzN8-z (z=1.8 and 2.8) spinels formed by shock compression

被引：26

作者：

Sekine, T ^{[1
]}

He, H ^{[1
]}

Kobayashi, T ^{[1
]}

Tansho, M ^{[1
]}

Kimoto, K ^{[1
]}

机构：

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

来源：

CHEMICAL PHYSICS LETTERS | 2001年 / 344卷 / 3-4期

关键词：

D O I：

10.1016/S0009-2614(01)00789-8

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We present the formation of cubic Si6-zAlzOzN8-z (z = 1.8 and 2.8) spinels by shock compressions from the corresponding P-sialon. Formed sialon spinels coexist with considerable amounts of the amorphous phase. The amorphization is considered to be a solid-solid reaction due to the sluggish phase transition under shock compression. The lattice parameter of the spinel increases and the density decreases with increasing z parameter. Shock-synthesized sialon spinels are nanocrystals with most grain sizes less than 30 nm and consist of main units of SiN4, SiN6 and AlO6. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：395 / 399

页数：5

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