Residual Stress Evolution by the ex-situ Annealing of TiN Thin Films Deposited on Steel Substrates

Autor: Luc Segers, Jean-Luc Delplancke, De Bruyn, René Winand, Min Ye, Guy Berton, Marie-Paule Delplancke
Rok vydání: 1998
Předmět:
Zdroj: Materials Science Forum. :275-282
ISSN: 1662-9752
DOI: 10.4028/www.scientific.net/msf.287-288.275
Popis: TiN thin films were deposited on high speed steel substrates by a PVD method at substrate temperatures of 450 °C (film A) and 200 °C (film B). Structural properties of the films were studied by X-Ray diffraction and atomic force microscopy. Residual stresses in the films are determined by a X-Ray diffraction method. It is found that film A has an average residual stress of about 8 GPa and a rougher surface. Film B has a smoother surface and a larger residual stress (12 GPa). By annealing at a temperature of 450 °C for four hours, the residual stress in film B is reduced to the same level as that in film A. The mechanisms which affect the residual stress of TiN films will be discussed.
Databáze: OpenAIRE