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材料工程  2014, Vol. 0 Issue (2): 70-74    DOI: 10.3969/j.issn.1001-4381.2014.02.014
  测试与表征 本期目录 | 过刊浏览 | 高级检索 |
提拉法制备二氧化硅陶瓷膜的形貌及性能
周琦1, 万文露1, 张春丽2, 贺春林3
1. 沈阳理工大学 环境与化学工程学院, 沈阳110159;
2. 西藏大学 理学院, 拉萨 850000;
3. 沈阳大学 辽宁省先进材料制备技术重点实验室, 沈阳 110044
Morphology and Properties of Dip-coated Silicon Dioxide Ceramic Films
ZHOU Qi1, WAN Wen-lu1, ZHANG Chun-li2, HE Chun-lin3
1. School of Environment and Chemical Engineering, Shenyang Ligong University, Shenyang 110159, China;
2. Science School, Tibet University, Lhasa 850000, China;
3. Liaoning Provincial Key Laboratory of Advanced Materials, Shenyang University, Shenyang 110044, China
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摘要 采用浸渍提拉工艺在复合镀镍的A3钢表面制备氧化硅陶瓷膜。借助扫描电镜观察陶瓷膜的微观形貌,应用电化学阻抗谱测试陶瓷膜的耐蚀性能并揭示耐蚀机理。用平面磨耗试验机测试了陶瓷膜的耐磨性能。结果表明:在500℃下烧结的氧化硅陶瓷膜为类似微裂纹镀铬的表面形貌;在400℃下烧结的氧化硅陶瓷膜与微孔镀铬的表面形貌相似;400℃及500℃烧结后形成无定形的SiO2陶瓷膜。阻抗较高的氧化硅陶瓷膜在3.5%(质量分数)NaCl溶液中的腐蚀过程为扩散控制,能明显抑制镀镍A3钢的腐蚀。氧化硅陶瓷膜降低了复合镀镍层的孔隙率。浸渍提拉成膜后膜层耐磨性能显著优于只复合镀镍的A3钢,浸渍提拉法能提高铁基体复合镀镍的耐磨性能。
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周琦
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关键词 复合电镀氧化硅陶瓷溶胶-凝胶    
Abstract:A dipping technology was used to prepare thin silica ceramic film on a composite nickel-plated A3 iron substrate.The microstructures of ceramic membrane was observed by SEM.The corrosion resistance properties and the wear-resistance properties were performed by electronical impedance spectroscopy and the flat surface abrasion machine,respectively.The results show that the surface morphology of silicon oxide ceramic coating sintered at 500℃ is similar to micro-crack chromium and the surface morphology of those sintered at 400℃ is similar to micro-porous chrome.Ceramic coatings are amorphous SiO2 after sintered at 400℃ and 500℃. The corrosion process of silica sol gel film with high impedance in 3.5% (mass fraction) NaCl solution is controlled by diffusion procedure, which can obviously inhibit the corrosion of nickel deposit on A3 iron substrate, and that with low impedance is controlled by electrochemical step. The wear-resistance of films after dip-coating is significantly better than that of eletroplating nickel. Silica sol-gel coating can reduce its porosity. The wear-resistance of composited plating nickel on iron substrate are improved by the silica sol-gel coatings.
Key wordscomposite plating    silica    ceramic    sol-gel
收稿日期: 2012-10-25      出版日期: 2014-02-20
中图分类号:  TG178  
通讯作者: 张春丽(1962-),女,教授,现从事溶胶凝胶技术研究,联系地址:西藏自治区拉萨市江苏路36号西藏大学新校区理学院化学与环境科学系(850000),E-mail:zhangchunli9999@aliyun.com.cn     E-mail: zhangchunli9999@aliyun.com.cn
作者简介: 周琦(1970-),女,博士,副教授,现从事金属腐蚀与防护研究,联系地址:辽宁沈阳浑南新区南屏中路6号沈阳理工大学环境与化学工程学院(110159),E-mail:zhouqi2469@163.com
引用本文:   
周琦, 万文露, 张春丽, 贺春林. 提拉法制备二氧化硅陶瓷膜的形貌及性能[J]. 材料工程, 2014, 0(2): 70-74.
ZHOU Qi, WAN Wen-lu, ZHANG Chun-li, HE Chun-lin. Morphology and Properties of Dip-coated Silicon Dioxide Ceramic Films. Journal of Materials Engineering, 2014, 0(2): 70-74.
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http://jme.biam.ac.cn/CN/10.3969/j.issn.1001-4381.2014.02.014      或      http://jme.biam.ac.cn/CN/Y2014/V0/I2/70
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