中文摘要：

为了改进稳定 Y2O3 的 ZrO2 (YSZ ) 的传导性，基于氧离子售票员， Zr0.85Y0.15O1.925-La9.33Si6O26 (YSZ-LSO ) 有 15% 的 La9.33Si6O26 (LSO ) 的集体部分的合成陶艺被使用一个修改一起沉淀方法准备。YSZ， LSO 和 YSZ-LSO 的阶段，微观结构和传导性被 X 光检查衍射，电子显微镜学和复杂阻抗分别地调查。结果证明 YSZ-LSO 的同样锻烧的粉末合成让谷物缩放不到 10 nm，和当泉华合成陶艺由 YSZ 和 LSO 阶段组成。传导性能被合成方法显然提高。在 700 点#

英文摘要：

To improve the conductivity of Y2O3-stabilized ZrO2 （YSZ） based oxygen-ion conductor, Zr0.85Y0.15O1.925-La9.33Si6O26 （YSZ-LSO） composite ceramics with the mass fraction of La9.33Si6O26 （LSO） of 15% were prepared by using a modified coprecipitation method. The phases, microstructures and conductivities of the YSZ, LSO and YSZ-LSO were investigated by X-ray diffraction, electron microscopy and complex impedance, respectively. The results show that the as-calcined powder of YSZ-LSO composite has the grain size less than 10 nm, and the as-sintered composite ceramics are composed of YSZ and LSO phases. The conductivity can be enhanced obviously by composite method. At 700 ℃, the conductivity of the composite ceramic is 0.125 S/cm, which is one order in magnitude higher than that of the YSZ ceramic and two orders in magnitude higher than that of LSO ceramic. By analyzing the impedance spectra and modulus spectra, the interfacial effect on the conductivity improvement was proposed.