潘传增,张靖,张龙,赵忠民

• 1:军械工程学院先进材料研究所

摘要(Abstract)：

以超重力下燃烧合成方式原位合成出TiC基金属陶瓷,并研究了复合陶瓷显微组织与生成机理。XRD,FESEM与EDS分析结果表明,陶瓷基体主要由TiC球晶相组成,同时在两相间还分布着少量的WB与ε-(Ti,W)C以及含量更少的Fe6W7、Al2 O3与ZrO2。TiC基复合陶瓷的形成主要为三个阶段:一是在超重力作用下,燃烧反应快速进行,迅速获得全液相产物;二是超重力促使氧化物液相发生Stocks迁移,从而得到Ti-W-Fe-C-B合金液相;最后,TiC在Ti-W-Fe-C-B合金液相的冷却过程中优先形核、析出。

关键词(KeyWords)： (Ti,W)C基复合陶瓷;燃烧合成;超重力;生成机理

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51072229)

作者(Author): 潘传增,张靖,张龙,赵忠民

DOI: 10.13289/j.issn.1009-6264.2011.04.001

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