High Temperature Oxidation of WC-ZrN Superhard Nanocomposite Film

Abstract:

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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.

Info:

Periodical:

Materials Science Forum (Volumes 510-511)

Edited by:

Hyung Sun Kim, Yu Bao Li and Soo Wohn Lee

Pages:

414-417

DOI:

10.4028/www.scientific.net/MSF.510-511.414

Citation:

D. B. Lee and Y.A. Shapovalov, "High Temperature Oxidation of WC-ZrN Superhard Nanocomposite Film", Materials Science Forum, Vols. 510-511, pp. 414-417, 2006

Online since:

March 2006

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Price:

$35.00

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