摘要
燃烧合成的非化学计量碳化钛基金属陶瓷由非化学计量碳化钛和α－Ｔｉ相组成．等温处理促进碳化物中过饱和固溶的钛析出，金属陶瓷中α－Ｔｉ相的量增多．较高温度（８００℃）等温处理使金属陶瓷中非化学计量碳化钛发生了无序—有序转变．等温处理后金属陶瓷抗弯强度增加而硬度有所降低．
Combustion synthesized nonstoichiometric titanium carbide base cermet was composed of nonstoichimetric titanium carbide and α-Ti. Heat treatment made titanium separate from nonstoichiometric titanium carbide. As treating temperature reaches 800℃, the nonstoichiometric titanium carbide transforms from disordered state to ordered state. The bending strength of cermet increases and the hardness decreases after heat treating.
出处
《中南工业大学学报》
CSCD
1996年第6期711-714,共4页
Journal of Central South University of Technology(Natural Science)
基金
国家教委博士点基金
关键词
燃烧合成
非化学计量
碳化钛
金属陶瓷
热处理
combustion synthesis
nonstoichiometric titanium carbide
cermet
heat treatment
disordering-ordering transformation
