SiC纤维/LAS复合材料的TG-DTA-MS研究

基金项目: 中国科学院上海硅酸盐研究所高性能陶瓷和超微结构国家重点实验室及国家自然科学基金资助项目和中国科学院大型仪器功能开发项目

TG-DTA-MS STUDIES OF SiC FIBRE-REINFORCED GLASS-CERAMIC MATRIX COMPOSITE

摘要

摘要: 本文首次用TG-DTA-MS联用技术对SiC纤维/LAS微晶玻璃复合材料的热分解过程、机制及其与晶化的关系进行了研究。提出了该复合材料界面形成碳层的热力学和质谱分析判别依据,并对晶化前后的复合材料的热分解行为作了实验对比和理论分析。
- SiC纤维/LAS复合材料 /
- 热分解 /
- 界面碳层 /
- TG-DTA-MS /
- 晶化
Abstract: This paper presents a study of the mechanism for thermal decomposition of SiC fibre reinforced glass-ceramic matrix composite and the relation to crystallization by TG-DTA-MS coupling technique. The thermodynamic and mas spectroscopy analysis for the composite SiC of forming carbon layer on the interphase of the composite SiC fibre/LAS are presented. A comparison between experimental phenomena and theoretical analysis for the thermal decomposition behaviour of both composite SiC fibre/LAS (crystallized and without crystallized) is also made.
- SiC fibre/LAS composite /
- thermal decomposition /
- carbon layer on the interphase /
- TG-DTA-MS /
- crystallization