耐事故UO2基复合燃料芯块的研发进展  

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

作　　者：莫华均[1] 张伟[1] 吴璐[1,2] 罗浩 何文[1] 潘荣剑 王桢[1] 伍晓勇[1,2] 温榜[1,2] Mo Huajun;Zhang Wei;Wu Lu;Luo Hao;He Wen;Pan Rongjian;Wang Zhen;Wu Xiaoyong;Wen Bang(The First Sub-Institute,Nuclear Power Institute of China,Chengdu,610005,China;Science and Technology on Reactor Fuel and Materials Laboratory,Nuclear Power Institute of China,Chengdu,610213,China)

机构地区：[1]中国核动力研究设计院第一研究所,成都610005 [2]中国核动力研究设计院反应堆燃料及材料重点实验室,成都610213

出　　处：《核动力工程》2020年第2期36-39,共4页Nuclear Power Engineering

基　　金：国家自然科学基金资助项目(51601185);国防基础科研计划资助(JCKY2017201C016);中国博士后科学基金资助项目(2015M582575)。

摘　　要：对先进耐事故燃料(ATF)芯块的研发背景进行了概述,重点讨论了耐事故UO2基复合燃料芯块的国内外研究现状,认为UN、U3Si2和ThO2等燃料相是耐事故UO2基复合燃料芯块中最具发展潜力的掺杂相,然而其最佳添加量及分布状态尚需结合多尺度数值模拟和实验研究的方法开展深入探索。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.

关 键 词：燃料芯块 耐事故 UO2 掺杂相 高热导率 

分 类 号：TB303[一般工业技术—材料科学与工程]