Paper Title:
Study on Improvement of Oxidation-Resistant Capability of Metal-Silicide Thin Film and Application to Heater
  Abstract

Thin films of Si-added-MoSi2 were deposited on Si3N4 or alumina substrate using an RF magnetron sputtering with a target made of MoSi2 and Si powders. The thin film consisted of a mixture of Si and MoSi2. The resistance of MoSi2-thin-film heaters fabricated using Si3N4 substrate heated for a long time in air increased with increasing heating-time at temperatures near 420°C due to generation of MoO3, which is an insulator, in thin film due to the oxidation of Mo in MoSi2. On the other hand, oxidation-resistant capability of thin-film heater fabricated by adding Si to MoSi2 was drastically improved compared with MoSi2 thin-film heater, because Si particles or the Si layer on a MoSi2 particle prevented the oxidation of MoSi2. The oxidation-resistant capability was excellent in air at high temperatures near 480°C for a long heating-time exceeding 950h.

  Info
Periodical
Key Engineering Materials (Volumes 421-422)
Edited by
Tadashi Takenaka, Hajime Haneda, Kazumi Kato, Masasuke Takata and Kazuo Shinozaki
Pages
169-172
DOI
10.4028/www.scientific.net/KEM.421-422.169
Citation
T. Hayashi, M. Satoh, S. Yoshikado, "Study on Improvement of Oxidation-Resistant Capability of Metal-Silicide Thin Film and Application to Heater", Key Engineering Materials, Vols. 421-422, pp. 169-172, 2010
Online since
December 2009
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$32.00
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