Preparation and structure of silicon oxycarbide glasses derived from polysiloxane precursors

被引：77

作者：

Corriu, RJP

Leclercq, D

Mutin, PH

Vioux, A

机构：

[1] Precurseurs Organometalliques Mat., UMR 44, Université Montpellier II, F-34095 Montpellier Cedex 5, case 007, Place E. Bataillon

来源：

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 1997年 / 8卷 / 1-3期

关键词：

silicon oxycarbide glasses; cross-linked polysiloxanes; Si-29 solid-state nuclear magnetic resonance; X-ray photoelectron spectroscopy; redistribution reactions;

D O I：

10.1007/BF02436860

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Silicon oxycarbide phases with different O/Si ratios were prepared by pyrolysis of highly cross-linked polysiloxane precursors. Their structure was investigated using quantitative Si-29 solid-state NMR and X-ray photoelectron spectroscopy (XPS). The prominent part played by the redistribution reactions on the ceramic yield, the composition of the oxycarbide phases and their structure was illustrated. In a large range of compositions the oxycarbide phases formed by pyrolysis at moderate temperature (<1000 degrees C) may be described as a purely random arrangement of CSi4 tetrahedra and Si-O-Si bridges.

引用

页码：327 / 330

页数：4

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