Acta Phys. -Chim. Sin. ›› 1997, Vol. 13 ›› Issue (03): 283-287.doi: 10.3866/PKU.WHXB19970319

• Note • Previous Articles    

Study of the Crystallization Kinetics of Titanium-Contained Alloy Amorphous Coatings by Brush Plating(II)

Deng Jie,Shi Hong-Yun,Zhang Yun-Qian   

  1. The Department of Chemistry of Guizhou University,Guiyang 550025
  • Received:1996-04-24 Revised:1996-12-31 Published:1997-03-15
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Abstract:

The aim of this paper is to use non-isothermal differental scanning calorimentry technigue (DSC) to study the crystallization kinetics of Ti-Co-Ni-P and Co-Ni-P Noncrystalline coatings by electro-brush plating. According to the kinetical study,the crystallization mechamism of two noncrystalline coatings may be expressed by Avrami-Erofeev equation (n=1). The kinetics equation is
dα/dT=A/Фe-E/RT(1-α)
The crystallization activation energy E of Ti-Co-Ni-P and Co-Ni-P noncrystaline coatings have been determined. The result shows they are stable noncrystalline alloy. According to the electro-chemical polarization curves, the corrosion resistance of Ti-Co-Ni-P is very good.

Key words: Ti-Co-Ni-P alloy coatings, Noncrystalline, Crystallization kinetics, Electro-brush plating