中文摘要：

采用固相反应法合成了高温质子导体CaZr0．9In0．1O3-α，XRD分析表明，混合粉体经1673K×10h煅烧后形成了预期的钙钛矿结构的CaZr03基固溶体．激光粒度分析表明，煅烧后的粉体粒度呈双峰分布，主峰对应0．389-0．584μm，次峰对应3．409-5．867μm，平均粒径为1．878pm．采用热压铸成型并经1823K×8h烧结的质子导体管密度为理论密度的97．44％，SEM断口形貌显示其颗粒尺寸在1—3pm之间，结构致密，EDS和电感耦合等离子发射光谱分析（ICP—AES）表明，烧结后的材料中In含量降低．DSC-TG分析表明这是由于在烧结过程中部分In203升华和离解造成的．CaZr0．9In0．1O-α在空气氛中931—1300K范围内的电导率为9．10×10^-5—1．21×10^-2S／cm，略低于氢气氛下的测定值，但高于CaZr0．9In0．1O3-α在空气中的测定值，电导激活能为1．47eV，符合理论预测．

英文摘要：

High temperature proton conductor CaZr0.9In0.1O3-α was prepared by solid state reaction. XRD result showed that the powders consisted of the expected perovskite structural CaZrO3- based solid solution after calcining at 1673 K for 10 h. Laser diffraction particle size analysis indicated that the particle size distribution of the calcined powders displayed a bimodal distribution pattern with a high peak in the range of 0.389---0.584 μm and a low peak in the range of 3.409-5.867μm, and the average particle size is 1.878 μm. The relative density of the proton conductor tubes formed by using hot pressure casting reached 97.44% after sintering at 1823 K for 8 h, SEM also showed that the sintered sample is dense and particle size range is 1--3 μm. EDS and ICP-AES analysis revealed that the content of In element decreased in the material after sintering, DSC-TG analysis displayed it is due to the sublimation and dissociation of In2O3 during the sintering. The conductivity range of CaZr0.9In0.1O3-α is 9.10×10^-5-1.21×10^-2S/cm in air, which is little smaller than that in H2 and larger than that of CaZr0.9In0.1O3-α in air in the temperature range of 931--1300 K, and the activation energy is 1.47 eV which is corresponding to the theoretical prediction.