Properties of Pressureless Sintered SiC-TiB2 Composites

摘要：

Silicon carbide( SiC) - titanium diboride (TiB2) composite was prepared with boron (B) and carbon (C) as sintering additive via pressureless sintering at 2180℃. The density of sintered samples achieved 96％ of full densification. The mechanical properties and electrical conductivity of composite ceramics with different SiC content were researched. The results showed that with the increasing of SiC content the hardness and electrical resistivity of composites decreased,while the strength increased. Although the XRD patterns of sintered samples showed that non new phase was produced,SEM images showed that SiC particle enlarged and surrounded by TiB2 grain during sintering. In this case the fracture mode was intergranular fracture.

关键词： SiC-TiB2 composite Pressureless sintering Mechanical properties

作者: Yuhong Chen Liang Jiang Xuehong Jia

作者单位: School of MSE,Beifang Ethnic University,Yinchuan 750021,China Ningxia Mechanical Research Institute,Yinchuan 750021,China

会议类型: 国际会议

会议名称: Frist Annual Meeting on Testing and Evaluation of Inorganic Materials(第一届全国无机材料测试与评价学术年会)

会议地点: 南昌

会议语种:英文

页码: 369-372

在线出版日期: 2010-04-28（万方平台首次上网日期，不代表论文的发表时间）