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: Three-dimensional silica fiber reinforced silicon nitride based composites were fabricated by preceramic polymer infiltration and pyrolysis method using perhydropolysilazane as a precursor... for the composite. Key words: silica fiber; precoating; preceramic polymer; silicon nitride based composites; microstructure ......
活性填料在先驱体转化制备陶瓷材料中的应用 陈朝辉1,谢征芳1,周长江1,李永清1 (1.国防科技大学航天与材料工程学院, 长沙 410073) 摘要:综述了用先驱体法制备陶瓷材料的特点,针对先驱体法气孔率高及收缩率大的不足,提出了三个解决办法,其中着重讨论了活性填料的选择原则及其在先驱体裂解制备陶瓷中的特点,应用国内外研究现状. 关键词:有机先驱体; 活性填料; 陶瓷; preceramic polymer; active filler; ceramics; [全文内容正在添加中] ......
composites; preceramic polymer pyrolysis; ablative properties; mechanical properties
......以聚硅氧烷为先驱体制备Al-SiCp/Si-O-C陶瓷复合材料
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来源： 《中国有色金属学报2004年第7期》——马青松 陈朝辉 郑文伟 胡海峰
, China) Abstract: The joining of graphite, ceramic SiC and Cf/SiC composites via preceramic silicone resin(SR) at high temperature (800-1400℃) was studied. The curing and pyrolysis process of SR... strength of the joints. Active filler nano Ai, Si powder can greatly improve the properties of the joints treated at high temperature. The improvement is over 700%. Key words: preceramic; silicone resin......
J. Cent. South Univ. Technol. (2008) 15: 535-539 DOI: 10.1007/s11771-008-0101-0 Reducing-resistance mechanism of vibratory excavation of hydraulic excavator ZHU Jian-xin(朱建新),YANG Cheng-yun(杨成云), HU Huo-yan(胡火焰), ZOU Xiang-fu(邹湘伏) (School of Mechanical and Electronic Engineering, Central South ......
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