Effects of pretreatment by ion implantation and interlayer on adhesion between aluminum substrate and TiN film

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Youming Liu
  • Liuhe Li
  • Xun Cai
  • Qiulong Chen
  • Ming Xu
  • Yawei Hu
  • Tik-Lam Cheung

Detail(s)

Original languageEnglish
Pages (from-to)152-159
Journal / PublicationThin Solid Films
Volume493
Issue number1-2
Publication statusPublished - 22 Dec 2005

Abstract

Pretreatment of the aluminum substrate, such as Ti and Ni-P interlayer, can improve the adhesion strength and mechanical properties of deposited TiN films. In this work, in order to compare with the effect of Ti interlayer and Ni-P interlayer, aluminum substrate was pretreated by titanium ion implantation prior to the deposition of TiN films by magnetron sputtering in a custom-designed multifunctional ion implanter. A scratch tester was used to assess the coating adhesion by investigating the critical load, Lc, at which delamination or other types of coating failures take place. The effects of different pretreatments on the adhesion strength between the films and substrates were analyzed. Our experimental results show that all the adopted pretreatment approaches can effectively improve the adhesion of TiN coatings on aluminum but the failure modes are different for the different coatings/substrate systems. Among the different processes, the use of a thick Ni-P interlayer (10 μm) and Ti ion implantation together with a Ti interlayer (300 nm) produce the better effects, as the adhesion strength increases from 0.7 to 3.7 and 4.0 N, respectively. © 2005 Published by Elsevier B.V.

Research Area(s)

  • Acoustic emission, Adhesion, Implantation, Titanium nitride

Citation Format(s)

Effects of pretreatment by ion implantation and interlayer on adhesion between aluminum substrate and TiN film. / Liu, Youming; Li, Liuhe; Cai, Xun; Chen, Qiulong; Xu, Ming; Hu, Yawei; Cheung, Tik-Lam; Shek, C. H.; Chu, Paul K.

In: Thin Solid Films, Vol. 493, No. 1-2, 22.12.2005, p. 152-159.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review