磁控溅射类石墨碳膜的导电性和耐蚀性  

Electric conductivity and corrosion resistance of graphite-likecarbon film prepared by magnetron sputtering

作　　者：胡仁涛 陆境莲 朱光明[1] 汤皎宁[1] HU Ren-tao;LU Jing-lian;ZHU Guang-ming;TANG Jiao-ning(Shenzhen Key Laboratory of Special Functional Materials,College of Materials Science and Engineering,Shenzhen University,Shenzhen,Guangdong 518060,China)

机构地区：[1]深圳大学材料科学与工程学院,深圳市特种功能材料重点实验室,广东深圳518060

出　　处：《电池》2019年第3期195-198,共4页Battery Bimonthly

基　　金：国家自然科学基金(51778369).

摘　　要：利用中频非平衡磁控溅射技术,在304不锈钢基底上沉积类石墨非晶碳膜,研究非晶碳膜的结构、形貌、导电性、耐蚀性及耐磨性。与纯304不锈钢双极板相比,镀类石墨碳膜后的不锈钢表面的导电性、耐蚀性及耐磨性均得到提高。在质子交换膜燃料电池(PEMFC)电堆压紧力(140 N/cm^2)下,镀类石墨碳膜后的不锈钢双极板接触电阻(9. 1 mΩ-cm^2)较低;在模拟PEMFC阴极工作环境中腐蚀电位和腐蚀电流密度分别为0. 27 V和8.72μA/cm^2,摩擦系数约0. 103,较低。Graphite-like carbon film was deposited on the 304 stainless steel ( SS) by if unbalanced magnetron sputtering. The structure, morphology and performance of conductivity, corrosion resistance, and wear resistance were mainly investigated. The electrical conductivity, corrosion resistance and abrasion resistance were improved for the graphite-like carbon film coated 304SS, compared with 304SS Li polar plate. The contact resistance was about 9. 1 mΩ·cm^2 under the normal compacting force of the at 140 N/cm^2. The corrosion potential and corrosion current density were 0. 27 V and 8. 72 μA/cm^2 in the simulated PEMFC cathode environment. The graphite-like carbon film coated 304SS had low friction coefficient(about 0. 103).

关 键 词：类石墨碳膜 质子交换膜燃料电池(PEMFC) 磁控溅射 接触电阻 耐蚀性 

分 类 号：TM911.46[电气工程—电力电子与电力传动]