熔渗法制备Ti_3SiC_2材料及性能影响因素  

Performance Influence Factors on Ti_3SiC_2 Synthesized by Infiltration-Sintering Technology

作　　者：肖琪聃[1] 吕振林[1] 李阳[1] 

机构地区：[1]西安理工大学材料科学与工程学院,西安710049

出　　处：《西安交通大学学报》2010年第5期56-59,共4页Journal of Xi'an Jiaotong University

基　　金：陕西省自然科学基金资助项目(2007E104);陕西省重点学科建设专项基金资助项目(陕财办教[2008]171号)

摘　　要：采用熔渗反应烧结技术制备了Ti3SiC2材料,并对影响制备材料性能的因素进行了分析.研究结果表明:在熔渗温度为1500℃、熔渗高度为6mm时,最佳熔渗保温时间应为30min;随着制备试样中Ti3SiC2相的逐渐增多,材料的抗弯性能明显提高;随着试验压力的增加,Ti3SiC2材料的摩擦因数和磨损率均呈现先增加后减小的趋势,在试验压力为30N时摩擦因数最大,压力为40N时磨损率最大;摩擦表面连续氧化膜的生成有助于减轻Ti3SiC2材料的磨损.Ti3SiC2 material was prepared with infiltration-sintering technology,and the performance influence factors of Ti3SiC2 were analyzed.The results show that：at infiltration temperature of 1 500 ℃ and infiltration height of 6 mm,the best infiltration holding time is 30 min;Flexural strength of the sample increases with the increasing Ti3SiC2 phase;friction factor and wear rate of the sample first increase and then decrease with the increasing pressure,and the friction factor and wear rate get the maximum when the pressure is 30 N and 40 N,respectively;and the continuous oxide film is of benefit to reducing wear and tear of Ti3SiC2 material.

关 键 词：TI3SIC2 熔渗温度 抗弯强度 摩擦因数 磨损率 

分 类 号：TB331[一般工业技术—材料科学与工程]