导电ZrO_2复合纳米材料的制备和表征

用溶胶-凝胶方法，结合后焙烧处理，得到系列ZrO_2纳米材料及其与碳膜组成 的复合材料，XRD，Raman，SEM及电电性能测试表明：复合ZrO_2纳米材料有较小的 粒径（6.85 nm），晶型为立方相，有较均匀的二次粒子分布，其中碳以碳膜形式 存在，复合材料有好的导电性能。将碳膜在823K氧化后，立方相转化为四方体相， 粒径增加，无导电性能。

Preparation and Characterization of Conductive ZrO_2 with Combined Nano-Structure

Series of ZrO 2 nanomaterials and their combined materials with carbon membrane were obtained by Sol-Gel method followed by post-calcination. The test results of XRD, Raman and SEM show that the nanomaterials has as small size as 6.85 nm with cube phase, well-organized secondary distribution particles, and the combined materials exhibit good conductivity with carbon existing in membrane form. After carbon membrane was oxidated at 823 K, the cubic ZrO 2 was transformed into insulated tetragonal ZrO 2 with crystal size increasing.