Corrosion test of HTGR graphite with SiC coating

Chikhray, Y.*; Kulsartov, T.*; Shestakov, V.*; Kenzhina, I.*; Askerbekov, S.*; Sumita, Junya ; Ueta, Shohei ; Shibata, Taiju ; Sakaba, Nariaki ; Abdullin, Kh.*; Nemkayeva, R.*

Application of SiC as corrosion-resistive coating over graphite remains important task for HTGR. This study presents the results of chemical interaction of the SiC gradient coating over the high-density IG-110 graphite with water vapor in the temperature up to 1673 K. The experiments at 100 Pa of water vapor showed that the passive reaction caused to form SiO $_{2}$ film on the surface of SiC coating. Active corrosion of SiC in 1Pa of water vapor leads to deposits of various carbon composites on its surface.

Language	:	English
Journal	:	Proceedings of 8th International Topical Meeting on High Temperature Reactor Technology (HTR 2016) (CD-ROM)
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Pages	:	p.572 - 577
Publication Year/Month	:	2016/11
Meeting title	:	8th International Topical Meeting on High Temperature Reactor Technology (HTR 2016)
Held date	:	2016/11
Location (city)	:	Las Vegas
Location (country)	:	U.S.A.
Patent information	:
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Keywords	:	HTGR; Graphite; SiC; IG-110; oxidation; Water Vapor
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Article of JAEA R&D Review	:
Cooperating Institute	:	Al-Farabi Kazakh National University

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Registration No. : BB20161095
JAEA Abstracts No. : 48000738
Paper Submission No. : 23023

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