(中國科學院 金屬研究所， 沈陽 110016)
摘 要: 用粉末布法制備了低成本SiC/Ti基復合材料。 結果表明， 采用合適的軋制參數(shù)即可容易地獲得厚度合適、均勻的粉末布； 熱失重分析和熱解殘余物分析指出用來制備粉末布的有機粘結劑的去除過程分成兩個階段， 合理除氣后， 基本沒有殘余物。 使用真空熱壓工藝制備的SiC/Ti基復合材料， 纖維分布基本均勻， 纖維與基體的界面結合良好。
關鍵字: 鈦基復合材料； 粉末布； SiC纖維； 真空熱壓
（Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China）
Abstract: The low cost SiC/Ti composites were prepared by a powder cloth technique. It is shown that uniform powder cloth with proper thickness can be produced by using appropriate rolling parameters. Thermogravimetic and pyrolysis residuum analysis indicate that the burnout process of fugitive binder used to produce the cloth is found to take place in two stages, no residuum is left when degassed properly. Composite materials processed by the vacuum hot pressing exhibit uniform fibre distribution and high interface bonding strength.
Key words: titanium matrix composite; powder cloth; SiC fibre; vacuum hot pressing
