Investigation of C/Al-Cr-N multilayer coatings for stainless steel bipolar plate in polymer electrolyte membrane fuel cells
Investigation of C/Al-Cr-N multilayer coatings for stainless steel bipolar plate in polymer electrolyte membrane fuel cells
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聚合物电解质膜燃料电池不锈钢双极板C/Al-Cr-N多层涂层的研究
DOI：
10.1016/j.surfcoat.2014.07.028
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发表时间：
2014-11
影响因子：
5.4
通讯作者：
Wu Y.
中科院分区：
文献类型：
--
作者：
Lu F.;Yao C.;Cai X.;Wu Y.
为了提高不锈钢双极板的耐腐蚀性和表面导电性，采用磁控溅射方法在316 L不锈钢（SS 316 L）表面制备了C/Al-Cr-N多层膜。扫描电子显微镜（SEM）结果表明，涂层总厚度约为2.3 μm，由0.9 μm的碳层和1.4 μm的Al-Cr-N亚层组成。界面接触电阻（ICR）结果表明，表面电阻随Cr含量的增加而减小，Al 2Cr 4试样在120 ~ 150 N cm− 2的压制力下达到最小值6.17-4.88 mΩ·cm 2。电化学和电感耦合等离子体原子发射光谱（ICP-AES）测试结果表明，Cr：N原子比为1：1、铝含量较低的C/Al-Cr-N多层膜具有较高的化学惰性和较好的耐蚀性。由于AlN相的存在，Al 6Cr 0和Al 5Cr 1试样在电偶腐蚀时，其腐蚀电位更负，钝化电流密度更大。因此，具有较低铝含量的C/Al-Cr-N多层涂层优选用于双极板应用。
To improve the corrosion resistance and surface conductivity of stainless steel bipolar plate, C/Al–Cr–N multilayer coatings with varying Al:Cr target current are deposited on stainless steel 316 L (SS316L) by magnetron sputtering. Scanning electron microscope (SEM) results show that the coating is about 2.3 μm in total thickness, consisting of 0.9 μm carbon layer and 1.4 μm Al–Cr–N sub-layer. The interfacial contact resistance (ICR) result indicates that the surface resistance decreases with the increasing content of chromium, and achieves the minimum value of 6.17–4.88 mΩ-cm2at the compaction force between 120 and 150 N cm− 2for the Al2Cr4 sample. The electrochemical and inductively coupled plasma atomic emission spectrometry (ICP-AES) results disclose that C/Al–Cr–N multilayer coatings with Cr:N atomic ratio of 1:1 and lower aluminum content have higher chemical inertness and better corrosion resistance. Al6Cr0 and Al5Cr1 samples exhibit more negative corrosion potential and higher passive current density with galvanic corrosion on the surface due to the existence of AlN phase. Therefore, C/Al–Cr–N multilayer coatings with lower aluminum content are preferred for bipolar plate application.
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影响因子：
9.2
作者：
L. Wang;D. Northwood;X. Nie;J. Housden;E. Spain;A. Leyland;A. Matthews
通讯作者：
L. Wang;D. Northwood;X. Nie;J. Housden;E. Spain;A. Leyland;A. Matthews
影响因子：
7.2
作者：
Yan Wang;D. Northwood
通讯作者：
Yan Wang;D. Northwood
影响因子：
2.1
作者：
X. Ding;A. Tan;Xianting Zeng;C. Wang;T. Yue;Chang Q. Sun
通讯作者：
X. Ding;A. Tan;Xianting Zeng;C. Wang;T. Yue;Chang Q. Sun
影响因子：
9.2
作者：
K. Feng;Zhuguo Li;F. Lu;Jian Huang;Xun Cai;Yixiong Wu
通讯作者：
K. Feng;Zhuguo Li;F. Lu;Jian Huang;Xun Cai;Yixiong Wu
影响因子：
5.4
作者：
Cunha, L;Andritschky, M;Pischow, K
通讯作者：
Pischow, K