REACTIVITY AND MOLECULAR-STRUCTURE OF SILICON-CARBIDE FIBERS DERIVED FROM POLYCARBOSILANES .1. THERMAL-BEHAVIOR AND REACTIVITY

被引：27

作者：

SCHRECK, P ^{[1
]}

VIXGUTERL, C ^{[1
]}

EHRBURGER, P ^{[1
]}

LAHAYE, J ^{[1
]}

机构：

[1] CTR RECH PHYSICOCHIM SURFACES SOLIDES,F-68200 MULHOUSE,FRANCE

来源：

JOURNAL OF MATERIALS SCIENCE | 1992年 / 27卷 / 15期

关键词：

D O I：

10.1007/BF01105133

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The thermal behaviour of Nicalon NML 202 fibres was carried out in the absence and in the presence of oxygen. The gaseous species produced and the oxygen balance were determined with a mass spectrometer. Three samples were studied: the desized initial fibre, this fibre after treatment with hydrofluoric acid, and a polycrystalline silicon carbide powder. It was shown that (i) the initial fibre has still an organic character, (ii) it contains a silica-rich layer, and (iii) beneath the silica-rich sheath the bulk of the fibre contains free carbon embedded in a silicon carbide-based network.

引用

页码：4237 / 4242

页数：6

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