R&D Progress of Accident-Tolerant UO2-Based Composite Fuel Pellets

Mo Huajun; Zhang Wei; Wu Lu; Luo Hao; He Wen; Pan Rongjian; Wang Zhen; Wu Xiaoyong; Wen Bang

Volume 41 Issue 2

Apr. 2020

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Mo Huajun, Zhang Wei, Wu Lu, Luo Hao, He Wen, Pan Rongjian, Wang Zhen, Wu Xiaoyong, Wen Bang. R&D Progress of Accident-Tolerant UO2-Based Composite Fuel Pellets[J]. Nuclear Power Engineering, 2020, 41(2): 36-39.

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Mo Huajun, Zhang Wei, Wu Lu, Luo Hao, He Wen, Pan Rongjian, Wang Zhen, Wu Xiaoyong, Wen Bang. R&D Progress of Accident-Tolerant UO2-Based Composite Fuel Pellets[J]. Nuclear Power Engineering, 2020, 41(2): 36-39.

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R&D Progress of Accident-Tolerant UO2-Based Composite Fuel Pellets

Publish Date: 2020-04-11

Abstract

Abstract

In this paper, the research background for the advanced accident-tolerant fuel (ATF) pellets was summarized, focusing on the R&D status of accident-tolerant UO2-based composite fuel pellets at home and abroad. It is concluded that the UN, U3Si2 and ThO2 are doped phases with the most development potential for accident-tolerant UO2-based composite fuel pellets. However, the optimal adding quantity and distribution of these doped phases should be investigated further by multi-scale modeling combined with experiments.
- Fuel pellet,
- Accident-tolerant,
- UO2,
- Doped phase,
- High thermal conductivity