中华医学超声杂志

应用化学 ›› 1995, Vol. 0 ›› Issue (3): 1-4.

• 研究论文 •    下一篇

不锈钢上紫红色钼酸盐转化膜的研究

方景礼, 刘琴, 韩克平, 陈耀辉   

  1. 南京大学应用化学研究所配位化学国家重点实验室, 南京 210093
  • 收稿日期:1994-09-21 修回日期:1994-12-30 出版日期:1995-06-10 发布日期:1995-06-10

Studies of the Purple-red Molybdate Conversion Flim on Stainless Steel

Fang Jingli, Liu Qin, Han Keping, Chen Yaohui   

  1. Applied Chemistry Institute, State Key Laboratory of Ccordination Chemistry, Nanjing University, Nanjing 210093
  • Received:1994-09-21 Revised:1994-12-30 Published:1995-06-10 Online:1995-06-10

PDF

385

被引次数

15 | 6

摘要： 用阴极电沉积法从钼酸盐和磷酸盐混合溶液中获得了紫红色不锈钢转化膜,该膜具有良好的热稳定性.XPS和AES分析表明,膜厚约94.4nm.钼在膜表面以Mo(Ⅵ)存在,在膜内则以Mo(Ⅵ)和Mo(Ⅳ)共存.从AES深度剥蚀曲线的组成恒定区求得膜的组成为:O 54.8%,Mo 30.5%,P 11.2%和Fe 3.5%,循环伏安的氧化峰也证明膜内存在Mo(Ⅳ).

关键词: 不锈钢, 钼酸盐, 转化膜, 组成, 热稳定性

Abstract: A ptirple-red conversion film on stainless steel was formed by cathodic electrode-position from molybdate-phosphate solution,This film displayed good thermostability,Theresults of XPS and AES analysis showed that the thickness of the film was 94.4nm and Moexisted as Mo(Ⅵ)in the surface of the film, but as Mo(Ⅵ) and Mo(Ⅳ)in the internal layerof the film.The relative atomic percent content of the film obtained from the elemental com-position constant region of the depth profile curves by AES was O 54.8%, Mo 30.5%,P11.2%and Fe 3.5%respectively.The cyclevoltamrnetric oxidation peak also revealed the M0(Ⅳ)in the internal layer of the film.

Key words: stainiess steel, molybdatc, Conversion film, composition, thermostability

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