High Temperature Oxidation of WC-ZrN Superhard Nanocomposite Film

Abstract:

The high-temperature oxidation behavior of WC-ZrN superhard nanocomposite film was studied in air between 500 and 700oC. The WC-ZrN film displayed poor high-temperature oxidation resistance, because of the formation of the nonprotective W-oxide scale and the less-protective, nonstoichiometric ZrO2-x oxide scale. The scale was prone to cracking and spallation. During oxidation, C and N escaped from the film into the air, while oxygen from the air diffused into the film.

• Periodical: Materials Science Forum (Volumes 510-511)
• Pages: 414-417
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.510-511.414
• Online since: March 2006
• Authors: Dong Bok Lee, Y.A. Shapovalov
• Keywords: Composite, Film, Oxidation, Tungsten Carbide, Zirconium Nitride

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DOI: 10.1016/j.tsf.2005.04.107

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