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阴极微弧电沉积钇稳定氧化锆涂层 被引量:17

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摘要 提出了一种新颖的阴极微弧电沉积技术(CMED).利用该技术在FeCrAl合金上制备出厚的钇稳定氧化锆(YSZ)涂层.研究结果表明,在试样上预先沉积YSZ薄膜,施加高压电脉冲时可以导致微弧放电;在微弧的作用下可以获得厚度达 300μm具有晶态结构的 YSZ涂层;高压电脉冲的电压值和频率决定了沉积涂层的厚度;电解液中添加硝酸钇时,发生ZrO2和Y2O3的共沉积,可使涂层中的t-ZrO2,t’-ZrO2和c-ZrO2稳定到室温;提高电解液中Y(NO3)3的含量可以降低涂层中m-ZrO2的相对含量.研究了阴极微弧电沉积YSZ涂层的微观结构,分析了阴极微弧电沉积的基本过程及机理.
出处 《科学通报》 EI CAS CSCD 北大核心 2002年第7期525-529,共5页 Chinese Science Bulletin
基金 本工作为国家自然科学基金项目(批准号:59971009) 并得到北京市腐蚀 磨蚀与表面技术重点实验室的资助.
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