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http://dx.doi.org/10.4191/KCERS.2007.44.3.169

A Study on the CVD Deposition for SiC-TRISO Coated Fuel Material Fabrication  

Kim, Jun-Gyu (Department of Ceramic Engineering, Yonsei University)
Kum, E-Sul (Department of Ceramic Engineering, Yonsei University)
Choi, Doo-Jin (Department of Ceramic Engineering, Yonsei University)
Kim, Sung-Soon (Department of Ceramic Engineering, Yonsei University)
Lee, Hong-Lim (Department of Ceramic Engineering, Yonsei University)
Lee, Young-Woo (Functional Materials, Korea Atomic Energy Research Institute)
Park, Ji-Yeon (Functional Materials, Korea Atomic Energy Research Institute)
Publication Information
Journal of the Korean Ceramic Society / v.44, no.3, 2007 , pp. 169-174 More about this Journal
Abstract
TRISO coated fuel particle is one of the most important materials for hydrogen production using HTGR (high temperature gas cooled reactors). It is composed of three isotropic layers: inner pyrolytic carbon (IPyC), silicon carbide (SiC), outer pyrolytic carbon (OPyC) layers. In this study, TRISO coated fuel particle layers were deposited through CVD process in a horizontal hot wall deposition system. Also the computational simulations of input gas velocity, temperature profile and pressure in the reaction chamber were conducted with varying process variable (i.e temperature and input gas ratios). As deposition temperature increased, microstructure, chemical composition and growth behavior changed and deposition rate increased. The simulation showed that the change of reactant states affected growth rate at each position of the susceptor. The experimental results showed a close correlation with the simulation results.
Keywords
TRISO; IPyC; SiC; OPyC; CVD;
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Times Cited By KSCI : 1  (Citation Analysis)
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