| XING Yi-bin,JIANG Bai-ling,LI Hong-tao,SHAO Wen-ting.Surface Modification of Ag-doped Graphite-like Films Prepared by Magnetron Sputtering with Aluminum Alloy Bipolar Plate[J],46(8):67-71 |
| Surface Modification of Ag-doped Graphite-like Films Prepared by Magnetron Sputtering with Aluminum Alloy Bipolar Plate |
| Received:February 22, 2017 Revised:August 20, 2017 |
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| DOI：10.16490/j.cnki.issn.1001-3660.2017.08.011 |
| KeyWord:aluminum alloy bipolar plates Ag-doped graphite-like films magnetron sputtering interfacial contact resistance anti-corrosion current density |
| Author | Institution |
| XING Yi-bin |
School of Materials Science and Engineering, Nanjing Tech University, Nanjing , China |
| JIANG Bai-ling |
School of Materials Science and Engineering, Nanjing Tech University, Nanjing , China |
| LI Hong-tao |
School of Materials Science and Engineering, Nanjing Tech University, Nanjing , China |
| SHAO Wen-ting |
School of Materials Science and Engineering, Nanjing Tech University, Nanjing , China |
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| Abstract: |
| The work aims to study effects of preparing Ag-doped graphite-like films on aluminum alloy samples on conductivity and corrosion resistance of the samples. Different Ag-doped graphite-like films were deposited on 6061 aluminum alloy bipolar by adopting magnetron sputtering ion plating technology. Microstructure, contact resistance and electrochemical corrosion resistance of the samples were observed and tested. Thickness of graphite-like films increased as Ag target current increased. ICR (interfacial contact resistance) of the coated samples decreased by 2 orders of magnitude, and corrosion current density decreased by 2~3 or-ders of magnitude compared with that of uncoated samples. When Ag target current was 0.04 A, the ICR (1.5 MPa) of the coated samples reached 1.93 mΩ•cm2 and the corrosion current density reached 105.5 A/cm2. The samples deposited with Ag-doped graphite-like films exhibit extremely low ICR and lower corrosion current density, endowing the coated samples with excellent conductivity and better corrosion resistance. |
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