Journal of Inorganic Materials ›› 2010, Vol. 25 ›› Issue (9): 975-978.doi: 10.3724/SP.J.1077.2010.00975

• Research Paper • Previous Articles     Next Articles

Preparation and Corrosion Resistance of TiCN/Al Composite Foil for Capacitor

PAN Ying-Jun, XUAN Shen-Zhu, TAN Mi, ZHOU Qing-Chun   

  1. (Department of Materials and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China)
  • Received:2009-11-11 Revised:2010-03-05 Online:2010-09-20 Published:2010-08-25
  • Contact: PAN Ying-Jun E-mail:hbwhpyj@163.com

Abstract:

A new TiCN/Al composite foil for capacitor negative applications was prepared by multi-arc ion plating method. The effects of cooling process and flow ratio of C2H2 to N2 for deposition on specific capacitance were investigated. The polarization curves were measured for TiCN/Al composite foil and traditional etching aluminum foil and their corrosion resistance were compared and discussed. Specific capacitance of TiCN/Al composite foil obtained is as high as 1600μF/cm2 which is over two times higher than that of the aluminum foil prepared using the traditional etching process. The TiCN/Al composite foil shows a wide range of stable passivation zone in the capacitor electrolyte solution and its corrosion resistance is significantly higher than that of the aluminum foil fabricated by the traditional etching process.

Key words: multi-arc ion plating, capacitor, aluminum foil, corrosion resistance

CLC Number: 

  • TG174