中文摘要：

借助表面粗糙度测试技术和循环伏安方法,研究了用Pt浆法制备Pt/YSZ电极过程中,YSZ表面粗糙度对其性能的影响。研究表明：Pt/YSZ电极制作时,所用金刚石磨片粒径大小对YSZ表面粗糙度间距参数无明显影响,但YSZ表面粗糙度高度参数则随着金刚石磨片粒径的增大而增大;当所用金刚石磨片粒径为44μm时,电极阴极活性（电位为-0.4 V时）最低,10μm时最高,约为44μm所制电极的2倍,其他电极则介于两者之间。

英文摘要：

By means of surface roughness test and cyclic voltammetry method,the effects of the YSZ surface roughness on the characteristics of the oxygen sensor during the Pt/YSZ electrode preparing process with Pt paste are studied.The study indicates that in the Pt/YSZ electrode preparing process,the diameter of the diamond polishing disc used has no obvious effects on the interval parameters of the YSZ surface roughness,but on the contrary,the vertical parameters of the YSZ surface roughness are increased with the diameter increased.The Pt/YSZ electrode has the worst cathodic activity（the potential is-0.4V）when a 44 μm diamond polishing disc is used.The electrode obtains the best cathodic activity with a 10 μm diamond disc,through which its cathodic activity（the potential is-0.4V）is approximately twice as active as that of the electrode prepared with a 44 μm diamond polishing disc.