| Microstructure and Corrosion Performance of Oxide Coatings on Aluminium by Plasma Electrolytic Oxidation in Silicate and Phosphate Electrolytes |
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| 作者姓名： | 吕国华 顾伟超 陈睆 李立 牛二武 杨思泽 |
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| 作者单位： | Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080 |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant No 10675165. |
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| 摘 要： | Ceramic coatings are fabricated on pure aluminium by plasma electrolytic oxidation （PEO） in three kinds of electrolyte systems E1： 0.05M NaOH＋0.033M Na2SiO3, E2： 0.025M NaOH＋0.008M （NAPO3）6 and E3： 0.025M NaOH＋0.066M Na2SiO3＋0.008M （NAPO3）6]. The voltage-time responses show that the PEO process of E2 has the highest discharging voltage, which results in the biggest pores and heaviest cracks on the surfaces. X-ray diffraction results show that coatings produced in E1 and E3 are mainly composed of γ-Al2O3 and mullite, while coatings produced in E2 are mainly composed of a-Al2O3. After PEO treatment the corrosion resistance of aluminium is improved significantly and the coatings produced in E3 perform the best corrosion resistance.
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| 关 键 词： | 硅酸盐电解 磷酸盐电解 等离子体电解氧化 铝覆层 氧化物陶瓷镀层 显微结构 耐腐蚀性 |
| 收稿时间： | 2006-09-20 |
| 修稿时间： | 2006-09-20 |
Microstructure and Corrosion Performance of Oxide Coatings on Aluminium by Plasma Electrolytic Oxidation in Silicate and Phosphate Electrolyte |
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| LV Guo-Hua,GU Wei-Chao,CHEN Huan,LI Li,NIU Er-Wu,YANG Si-Ze.Microstructure and Corrosion Performance of Oxide Coatings on Aluminium by Plasma Electrolytic Oxidation in Silicate and Phosphate Electrolytes[J].Chinese Physics Letters,2006,23(12):3331-3333. |
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| Authors: | LV Guo-Hua GU Wei-Chao CHEN Huan LI Li NIU Er-Wu YANG Si-Ze |
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| Institution: | Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080 |
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| Abstract: | |
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| Keywords: | 68 55 -a 81 65 Kn |
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