A study on the CVD deposition for SiC-TRISO coated fuel material fabrication

Jun Gyu Kim, E. Sul Kum, Doo Jin Choi, Sung Soon Kim, Hong Lim Lee, Young Woo Lee, Ji Yeon Park

Research output: Contribution to journalArticle

4 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)169-174
Number of pages6
JournalJournal of the Korean Ceramic Society
Volume44
Issue number3
DOIs
Publication statusPublished - 2007 Mar

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites

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