物理化学学报 >> 1994, Vol. 10 >> Issue (10): 959-962.doi: 10.3866/PKU.WHXB19941020

研究简报 上一篇    

电刷镀含钛合金非晶态镀层的晶化动力学(I)

姚萍, 史鸿运, 邓洁, 张云黔, 王一波, 范寿瑢   

  1. 贵州大学化学系，贵阳 550025
  • 收稿日期:1993-03-20 修回日期:1994-04-19 发布日期:1994-10-15
  • 通讯作者: 史鸿运

The Study of the Crystallization Kinetics of Titaniumcontained Noncrystalline Coats by Brush Plating(I)

Yao Ping, Shi Hong-Yun, Deng Jie, Zhang Yun-Qian, Wang Yi-Bo, Fan Shou-Rong   

  1. The Department of Chemistry of Guizhou University,Guiyang 550025
  • Received:1993-03-20 Revised:1994-04-19 Published:1994-10-15
  • Contact: Shi Hong-Yun

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关键词: 含钛合金镀层, 非晶态, 晶化动力学, 电刷镀

Abstract:

The aim of the present paper is to use non-isothermal differental scanning calorimentry technique to study the crystallization kinetics of a series of Ti-Ni-P electro brush plating amorphous coating plated using the solution in which the acid concentration is pH3, pH5, pH7, pH9 separately. The result shows the phosphorus composition in the coating increases and the crystallization peak of the DSC curve becomes lower as well as wider and the crystallization activation energy E reduses with the the increase of acid concentration in the solution, so E may indicate the stability of the coatings. The crystallization temperatuer Tc and heat of crystallization ΔH do not change regularly when pH changes. According to the kinetics study, the crystallization mechanism of the amorphous coatings may be expressed by Avrami-Erofeev equation(n=1). the kinetics equation is
dα/dT = Ae-E/RT(1- α)

Key words: Titanium-Contained alloy coats, Noncrystalline, Crystallization kinetics, Brush plating