Preparation of silicon carbide foams using polymeric precursor solutions

被引：1
|
作者：
X. Bao
M. R. Nangrejo
M. J. Edirisinghe
机构：
[1] University of London,Department of Materials, Queen mary & Westfield College
[2] University of London,Department of Materials, Queen mary & Westfield College
来源：
Journal of Materials Science | 2000年 / 35卷
关键词：
Nitrogen; Polymer; Silicon; Carbide; Foam;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A simple method was developed to produce silicon carbide foams using polysilane polymeric precursors. Polyurethane foams were immersed in polysilane precursor solutions to prepare pre-foams. Subsequently, these were heated in nitrogen at different temperatures in the range of 900°C to 1300°C. The silicon carbide foams produced in this manner showed well-defined open-cell structures and the struts in the foams were free of voids. The shrinkage which accompanies pyrolysis of the pre-foams was reduced with increasing the concentration of the polymeric precursor solutions.
引用
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页码：4365 / 4372
页数：7
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