Behavior of Thick SiC Gradient Coatings on Graphite under High Heat Flux and HT-7 Limiter Plasma Irradiation

Abstract:

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The behavior of thick SiC gradient coatings on different graphites under high power electron beam irradiation, pulsed high energy laser impact, and HT-7 limiter plasma action was investigated. In the following tests at these facilities, the samples were examined using SIMS, EDAX, X-ray crystallography, profilometer and Auger spectroscopy. Thick SiC gradient coatings showed excellent durability under high heat flux and in real conditions of HT-7 limiter plasma irradiation. The primary results indicated that the use of multi-element doped graphite, GBST1308 (1%B4C, 2.5%Si, 7.5%Ti) with high thermal conductivity, as substrate will improve the durability of thick SiC gradient coatings significantly.

Info:

Periodical:

Materials Science Forum (Volumes 475-479)

Main Theme:

Edited by:

Z.Y. Zhong, H. Saka, T.H. Kim, E.A. Holm, Y.F. Han and X.S. Xie

Pages:

1367-1370

DOI:

10.4028/www.scientific.net/MSF.475-479.1367

Citation:

H. Li et al., "Behavior of Thick SiC Gradient Coatings on Graphite under High Heat Flux and HT-7 Limiter Plasma Irradiation", Materials Science Forum, Vols. 475-479, pp. 1367-1370, 2005

Online since:

January 2005

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Price:

$35.00

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