会议专题

Porous TiN Ceramics Fabricated by Carbothermal Reduction Method

  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.

Porous TiN ceramics Carbothermal reduction Sintering additives

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

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

国际会议

the Chinese Materials Congress 2012(2012年中国材料大会(CMC2012))

太原

英文

667-672

2012-07-13(万方平台首次上网日期,不代表论文的发表时间)