Nucleation phenomena of nano-crystallites in as-pyrolysed Si-B-C-N ceramics

被引：24

作者：

Cai, Y

Zimmermann, A

Prinz, S

Zern, A

Phillipp, F

Aldinger, F

机构：

[1] Max Planck Inst Met Res, D-70569 Stuttgart, Germany

[2] Univ Stuttgart, Inst Nichtmet Anorgan Materialien, Pulvermet Lab, D-70569 Stuttgart, Germany

[3] Max Planck Inst Met Res, D-70174 Stuttgart, Germany

来源：

SCRIPTA MATERIALIA | 2001年 / 45卷 / 11期

关键词：

transmission electron microscopy; electron energy loss spectroscopy; nucleation; ceramics; precursor-derived Si-B-C-N;

D O I：

10.1016/S1359-6462(01)01164-2

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The nucleation of nano-crystallites in as-pyrolysed Si-B-C-N ceramics derived from polymers has been investigated by transmission electron microscopy and electron energy loss spectroscopy. While the material rests in a purely amorphous state until 1300 degreesC, the formation Of alpha -Si3N4 and beta -SiC/alpha -Si3N4 crystals with sizes ranging from 2 to 5 nm has been detected at 1350 and 1400 degreesC respectively. (C) 2001 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.

引用

页码：1301 / 1306

页数：6

共 14 条

[1] Precursor-derived Si-B-C-N ceramics [J].