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硅溶胶在镁合金阳极氧化反应中的成膜作用

李一泓 朱立群 刘慧丛 陈贻炽

李一泓, 朱立群, 刘慧丛, 等 . 硅溶胶在镁合金阳极氧化反应中的成膜作用[J]. 北京航空航天大学学报, 2008, 34(02): 219-223.
引用本文: 李一泓, 朱立群, 刘慧丛, 等 . 硅溶胶在镁合金阳极氧化反应中的成膜作用[J]. 北京航空航天大学学报, 2008, 34(02): 219-223.
Li Yihong, Zhu Liqun, Liu Huicong, et al. Behavior of silica sol during the anodizing process of magnesium alloy[J]. Journal of Beijing University of Aeronautics and Astronautics, 2008, 34(02): 219-223. (in Chinese)
Citation: Li Yihong, Zhu Liqun, Liu Huicong, et al. Behavior of silica sol during the anodizing process of magnesium alloy[J]. Journal of Beijing University of Aeronautics and Astronautics, 2008, 34(02): 219-223. (in Chinese)

硅溶胶在镁合金阳极氧化反应中的成膜作用

基金项目: 航空基金资助项目(04H51002)
详细信息
    作者简介:

    李一泓(1983-),女,北京人,硕士生, liyihong@mse.buaa.edu.cn.

  • 中图分类号: TG 174.451

Behavior of silica sol during the anodizing process of magnesium alloy

  • 摘要: 采用溶胶化学与电化学相结合的新型表面处理方法——将自制的硅溶胶添加到电解质溶液中进行阳极氧化.以AZ91D镁合金及镁锂合金为研究基材,研究体系分别为硅酸钠和氢氧化钠溶液,通过对不同溶胶添加量下的溶液电导率、反应击穿电压、氧化膜层厚度及微观形貌、膜层表面成分及XRD结果分析,来探讨溶胶粒子在成膜过程中的作用.结果表明:溶胶粒子的加入增大了阳极表面的电阻,使得反应的击穿电压升高,从而导致了膜层厚度增加;同时硅溶胶粒子参与了阳极氧化反应,其在高温高压的条件下与MgO生成了Mg2SiO4.

     

  • [1] 李卫平,朱立群.镁及其合金表面防护性涂层国外研究进展[J].材料保护,2005,38(2):41-46 Li Weiping, Zhu Liqun. Recent progress in research of protective coatings on magnesium and its alloys[J]. Materials Protection,2005,38(2):41-46(in Chinese) [2] 朱立群,刘慧丛,李卫平,等. AZ91D镁合金表面热扩散渗锌膜层研究[J].北京航空航天大学学报,2005,31(1):8-12 Zhu Liqun, Liu Huicong, Li Weiping, et al. Zinc alloyed coating on AZ91D magnesium alloys[J]. Journal of Beijing University of Aeronautics and Astronautics,2005,31(1):8-12(in Chinese) [3] Gray J E, Luan B. Protective coatings on magnesium and its alloys: a critical review[J]. Journal of Alloys and Compounds,2002,336:88-113 [4] 梁永政,郝远,张汉茹,等.镁合金表面技术的研究近况[J].铸造设备研究,2003,5:48-51 Liang Yongzheng, Hao Yuan, Zhang Hanru, et al. The development of surface technology of magnesium alloy[J]. Research Studies on Foundry Equipment,2003,5:48-51(in Chinese) [5] 霍宏伟,郑志国,李明升,等. 镁合金的阳极氧化研究[J]. 稀有金属材料与工程,2005,34(9):1345-1348 Huo Hongwei, Zheng Zhiguo, Li mingsheng, et al.Investigation on anodization of magnesium alloys[J]. Rare Metal Materials and Engineering, 2005,34(9):1345-1348(in Chinese) [6] 殷馨,戴媛静.硅溶胶的性质、制法及应用[J].化学推进剂与高分子材料,2005,3(6):27-32 Yin Xin, Dai Yuanjing. Characteristics, manufacture and application of silica sol[J]. Chemical Propellants & Polymeric Material,2005,3(6):27-32(in Chinese) [7] 朱立群,刘慧丛.溶胶成分对镁合金阳极氧化膜层的影响研究[J].功能材料,2006,36(6):923-926 Zhu Liqun, Liu Huicong. The effect of sol ingredient to anodic oxidation film on magnesium alloys[J].Journal of Functional Materials,2006,36(6):923-926(in Chinese) [8] Li Weiping, Zhu Liqun, Li Yihong. Electrochemical oxidation characteristic of AZ91D magnesium alloy under the action of silica sol[J]. Surface & Coatings Technology,2006,201:1085-1092 [9] Li Weiping, Zhu Liqun, Liu Huicong. Effects of silicate concentration on anodic films formed on AZ91D magnesium alloy in solution containing silica sol[J]. Surface & Coatings Technology,2006,201:2505-2511 [10] Li Weiping, Zhu Liqun, Liu Huicong. Preparation of hydrophobic anodic film on AZ91D magnesium alloy in silicate solution containing silica sol[J]. Surface & Coatings Technology,2006,201:2573-2577 [11] 李卫平.溶胶对镁合金表面阳极氧化和阴极电沉积过程的作用机制研究 .北京:北京航空航天大学材料科学与工程学院,2006 Li Weiping. Modification of anodizing and electroplating process for AZ91D magnesium alloy by sols .Beijing: School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics,2006(in Chinese) [12] 旷亚非,侯朝辉,刘建平.阳极氧化过程中电击穿理论的研究进展[J].电镀与涂饰,2000,19(3):38-41 Kuang Yafei, Hou Zhaohui, Liu Jianping. Development of electric breakdown theory of anodic oxidation[J]. Electroplating & Finishing,2000,19(3):38-41(in Chinese)
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出版历程
  • 收稿日期:  2007-03-13
  • 网络出版日期:  2008-02-29

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