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碳化铀核燃料缺陷结构的研究现状
引用本文:王德君,何淼,秦芝,黄庆,都时禹. 碳化铀核燃料缺陷结构的研究现状[J]. 核技术, 2017, 40(7). DOI: 10.11889/j.0253-3219.2017.hjs.40.070606
作者姓名:王德君  何淼  秦芝  黄庆  都时禹
作者单位:1. 大连理工大学电子科学与技术学院 大连 116024;2. 大连理工大学电子科学与技术学院 大连 116024;中国科学院宁波材料技术与工程研究所 宁波 315201;3. 中国科学院近代物理研究所 兰州 730000;4. 中国科学院宁波材料技术与工程研究所 宁波 315201
基金项目:国家重点研发计划,中国科学院核能材料交叉创新团队和先进核裂变能先导专项(No.XDA02040105、No.XDA03010305)资助 Supported by National Key Research and Development Program of China,Interdisciplinary Innovation Team and Strategic Priority Research Program of Chinese Academy of Sciences
摘    要:与传统的氧化型核燃料相比,碳化铀因其有潜力用于第四代反应堆而受到广泛关注。为了安全有效地利用这种先进核燃料,有必要对它的结构、体性质和缺陷形成机制充分认识,从而了解随着裂变反应的进行裂变产物对核燃料性能的影响规律。本文对铀碳系列化合物(UC、UC_2和U_2C_3)实验和理论研究进行了综述,重点分析其缺陷结构下的化学和力学性能,同时对进一步的研究提出了展望。目的在于帮助核能领域的研究者厘清碳化铀的服役行为,同时为燃料设计者提供有价值的线索。

关 键 词:碳化铀  核燃料  点缺陷  综述

Current status of studies on point defect structures of uranium carbide nuclear fuels
WANG Dejun,HE Miao,QIN Zhi,HUANG Qing,DU Shiyu. Current status of studies on point defect structures of uranium carbide nuclear fuels[J]. Nuclear Techniques, 2017, 40(7). DOI: 10.11889/j.0253-3219.2017.hjs.40.070606
Authors:WANG Dejun  HE Miao  QIN Zhi  HUANG Qing  DU Shiyu
Abstract:Background:Uranium carbide has attracted extensive attention as a potential candidate for the fourth generation nuclear fuel, and it is crucial to understand its structures, bulk properties and defect formation to learn the impact of fission products on the performance of the fuels as the fission reaction proceeds for the purpose of proper and safety operation.Purpose: This study aims to help clarify the serving behaviors of uranium carbide as well as provide valuable clues for fuel designers.Methods: Irradiation in experiments and first-principles in theory are mostly used in the literature to analyze the point defect structures of uranium carbide nuclear fuels.Results: The theoretical and experimental studies for uranium carbides (UC, UC2and U2C3) are reviewed, chemical and mechanical properties of defective structures are analyzed emphatically and recommendations for further studies are provided.Conclusion: All these provide new insight into the properties of carbide nuclear fuels.
Keywords:Uranium carbide  Nuclear fuel  Point defects  Review
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