| Titre : |
Effect of heat treatment at 1300°C on W coating prepared by double-glow plasma on carbon/carbon composite |
| Type de document : |
texte imprimé |
| Auteurs : |
Ying Zhang, Auteur ; Dan Fang, Auteur ; Wangping Wu, Auteur ; Chen Liangbing, Auteur ; Zhaofeng Chen, Auteur |
| Année de publication : |
2009 |
| Article en page(s) : |
p. 237-241 |
| Note générale : |
Bibliogr. |
| Langues : |
Américain (ame) |
| Catégories : |
Composites à fibres de carbone
Revêtements:Peinture
Technique des plasmas
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
W-coated carbon/carbon composite has been considered as an attractive ITER plasma facing material in fusion devices. In this paper, W coating was prepared on the carbon/carbon composite substrate by double-glow plasma method using pure W as target. Argon was input into the chamber as the plasma and the reactive gas. W-coated carbon/carbon composite was heat-treated in vacuum furnace at 1300°C for 1 h. Phase and microstructure of W coating were examined by X-ray diffraction and scanning electron microscopy, respectively. The chemical composition of W coating was analyzed by energy dispersive spectroscopy. The micro-hardness of the W coating was estimated by nano-indentation instrument. The results indicated that a continuous and dense W-modified layer could be successfully coated on the carbon/carbon composite surface by double-glow plasma method. W coating completely reacted with C to form WC at 1300°C. WC almost completely diffused into the carbon/carbon composite after heat treatment. The great decrease in elemental W on the carbon/carbon composite surface after heat treatment led to a significant reduction in micro-hardness. |
| DOI : |
10.1007/s11998-008-9109-5 |
| En ligne : |
https://link.springer.com/content/pdf/10.1007%2Fs11998-008-9109-5.pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5624 |
in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 6, N° 2 (06/2009) . - p. 237-241
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