Porous TiN Ceramics Fabricated by Carbothermal Reduction Method

摘要：

　　Porous TiN ceramics with high porosity and uniform pore structure was prepared following the carbothermal reduction reaction between TiO2 and carbon.Influences of sintering additives and particle size of TiO2 on the microstructure and mechanical properties of porous TiN ceramics were investigated.Microstructure and mechanical properties of porous TiN ceramics were studied by XRD,SEM and three-point bending measurement.XRD analysis proved that the TiN phase has completely formed after reaction.In addition,SEM analysis showed that the resultant porous TiN ceramics were composed of fine grains with uniform pore structure.The addition of La2O3 not only accelerated the densification of porous TiN ceramics,but also decreased the porosity and increased the flexural strength.With a decrease in TiO2 particle size,the linear shrinkage increased and the porosity decreased accordingly.

关键词： Porous TiN ceramics Carbothermal reduction Sintering additives

作者: Yuan Lu Jianfeng Yang Zhiliang Chen Jianjun Han Jingjing Li Ke Yun

作者单位: Xi’an Special Equipment Inspection Institute, Xi’an, Shaanxi and 710065, China State Key Laboratory for Mechanical Behavior of Materials, Xian Jiaotong University, Xian, Shanxi

会议类型: 国际会议

会议名称: the Chinese Materials Congress 2012(2012年中国材料大会(CMC2012))

会议地点: 太原

会议语种:英文

页码: 667-672

在线出版日期: 2012-07-13（万方平台首次上网日期，不代表论文的发表时间）