[2I01-07] Pu burning high-temperature gas-cooled reactor

[2I07] Development of Security and Safety Fuel for Pu-burner HTGR

(13)Test and characterization for ZrC coating

*Shohei Ueta¹, Jun Aihara¹, Yukio Tachibana¹, Kazuhiko Kunitomi¹, Koji Okamoto² (1.JAEA, 2.Univ. Tokyo)

Keywords:Coated fuel particle, Zirconium carbide, ZrC, Chemical vapor deposition, Coating test, Characterization

To extend burnup of security and safety fuel for Pu-burner HTGR, zirconium carbide (ZrC) acting as an oxygen getter is coated directly on the inert matrix fuel kernel. In the fiscal year 2015, ZrC coating test on YSZ dummy kernel by bromide process has been started, and ZrC layer with 14 μm of thickness has been obtained successfully at 1350 ⁰C of deposition temperature with 100 g of particle loading weight. Relationship between material properties and coating conditions on ZrC such as temperature, etc. are examined through upcoming ZrC coating tests.