铀钼合金燃料辐照肿胀行为综述  

Overview of Radiation Swelling Behavior of Uranium-Molybdenum Alloy Fuel

作　　者：姚钦文 YAO Qinwen

机构地区：[1]中国原子能科学研究院,北京102413

出　　处：《科技创新与应用》2023年第25期6-10,共5页Technology Innovation and Application

摘　　要：铀钼(U-Mo)合金作为一种先进金属核燃料,相对于传统氧化物燃料具有热导率高、铀密度高等优势,成为目前研究堆、空间热管堆用燃料的研究热点。U-Mo合金燃料存在金属核燃料共有的辐照肿胀效应,是限制U-Mo合金燃料应用的关键因素。相对其他铀合金燃料,U-Mo合金具有更好的抗辐照稳定性,其辐照肿胀行为受燃耗和温度影响严重。结合金属核燃料辐照肿胀特性,简述U-Mo合金燃料辐照肿胀效应的机理,汇总现阶段U-Mo合金燃料辐照肿胀模型的研究成果并进行对比。最后对U-Mo合金燃料的未来发展和工程化应用进行展望。Uranium-molybdenum(U-Mo) alloy,as an advanced metal nuclear fuel,has the advantages of high thermal conductivity and high uranium density compared with traditional oxide fuel,and has become a research hotspot of fuel for research reactors and space heat pipe reactors.The radiation swelling effect of U-Mo alloy fuel is the key factor limiting the application of U-Mo alloy fuel.Compared with other uranium alloy fuels,U-Mo alloy has better radiation stability,and its radiation swelling behavior is seriously affected by burn-up and temperature.According to the characteristics of metal fuel radiation swelling,the mechanism of U-Mo alloy fuel radiation swelling effect is briefly described,and the research results of U-Mo alloy fuel radiation swelling model at present are summarized and compared.Finally,the future development and engineering application of U-Mo alloy fuel are prospected.

关 键 词：金属核燃料 铀钼合金 辐照肿胀 物性模型 效应机理 

分 类 号：TL627[核科学技术—核技术及应用]