Preparation and Conductivity Properties of Ta5+ Doping BaCeO3Ceramics
Doping perovskite structure ceramics constitute an important type of solid oxides fuel cell (SOFC) cathode materials.In this study,BaCe1-xTaxO3+δ powders were prepared by solid state reaction at 1500℃ for 4h.BaCe1-xTaxO3+δ ceramics were pressureless sintered at 1600℃ for 5h.The results indicated that the relative density of BaCe1-xTaxO3+δ ceramics reached the range of 84.15-90.88%.At the frequency of 1Hz,the conductivity of BaCe0.65Ta0.35O3+δ ceramic samples varied greatly,when the testing temperature rose from room temperature to 900℃ in increments of 100℃.The highest conductivity was obtained at 600℃ with the value of 6.74× 10-5 S/cm.
barium cerate Ta5+ doping conductivity
Chao Tang Minghao Fang Zhaohui Huang Yan-gai Liu
School of Materials Science and Technology,China University of Geosciences Beijing(CUGB),29 Xueyuan Rd,Haidian district,Beijing 100083,P.R.China
国际会议
桂林
英文
190-193
2012-07-16（万方平台首次上网日期，不代表论文的发表时间）