Preparation of metal coated fuel particles using the fluidized bed-chemical vapor deposition method

doi:10.16511/j.cnki.qhdxxb.2021.25.024

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Abstract Fuel particles are coated with metals such as Nb, Zr, or W for advanced nuclear industry fuels. Coated particles with Nb and Zr coatings were fabricated using fluidized bed-chemical vapor deposition (FB-CVD) with investigations of the thermal transport characteristics of the precursors. The results showed that the metal coating improves the mechanical properties of the coated particles. The investigation studied the effects of the deposition temperature, precursor transport and oxidation on the metal deposition rate. The metal coating layer enhances the crushing strength, but has poor oxidation resistance, so it cannot be used in an oxidizing environment.

Keywords coated particle FB-CVD Nb coating Zr coating

Issue Date: 16 April 2021

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	YANG Xu
	CHENG Xinyu
	LIU Rongzheng
	LIU Bing
	SHAO Youlin
	LIU Malin

Cite this article:

YANG Xu,CHENG Xinyu,LIU Rongzheng, et al. Preparation of metal coated fuel particles using the fluidized bed-chemical vapor deposition method[J]. Journal of Tsinghua University(Science and Technology), 2021, 61(4): 361-366.

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http://jst.tsinghuajournals.com/EN/10.16511/j.cnki.qhdxxb.2021.25.024 OR http://jst.tsinghuajournals.com/EN/Y2021/V61/I4/361

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