SiC-TiB2 Composite Densified by Pressureless Liquid-Phase Sintering

摘要：

　　Particle reinforced SiC composites with the addition of TiB2 were fabricated in 1750℃ to 1950℃ by pressureless liquid-phase sintering with AlN-Y2O3 as sintering additives.The effective of sintering aids in densification,the mechanical properties and the microstructure of sintered samples was investigated in this paper.The results showed that the best densification behaviors occurred in AlN∶Y2O3 at 60∶40%mol ratio not at eutectic point.Adding TiB2 to SiC matrix increase the toughness and decreased the hardness.Microstructure analysis showed that the increasing of toughness was due to the crack deflection with some contribution intergranular fracture mechanism.

关键词： SiC-TiB2 composite ceramic Pressureless sintering liquid phase Microstructure

作者: Chen Yuhong Wu Laner Sun Wenzhou Jiang Yong Lu Youjun

作者单位: Shool of MSE,Beifang University for nationalities,Ningxia 750021,China

会议类型: 国际会议

会议名称: 3rd International Conference on Testing and Evalution of Inorganic Materials(第三届无机材料测试与评价学术年会(TEIM2012))

会议地点: 景德镇

会议语种:英文

页码: 48-51

在线出版日期: 2012-10-15（万方平台首次上网日期，不代表论文的发表时间）