论文部分内容阅读
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。
Uranium carbide has drawn much attention as it has the potential to be used in Gen 4 reactors over conventional oxidized nuclear fuel. In order to utilize this advanced nuclear fuel safely and effectively, it is necessary to fully understand its structure, physical properties and defect formation mechanism so as to understand the law of influence of fission products on the performance of nuclear fuel as the fission reaction progresses. In this paper, the experimental and theoretical researches on uranium carbon series compounds (UC, UC_2 and U_2C_3) are reviewed. The chemical and mechanical properties of the uranium carbon series compounds are analyzed emphatically. At the same time, the prospects for future research are also presented. The goal is to help researchers in the nuclear energy field clarify the serviceability of uranium carbide and at the same time provide valuable clues for fuel designers.