Uranium Nitride/Uranium Diboride oxidation studies

氮化铀/二硼化铀氧化研究

• 批准号: 2603175
• 金额: --
• 依托单位: University of Manchester
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2021
• 资助国家: 英国
• 起止时间: 2021 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2603175
• 关键词: Uranium; Nitride; Diboride; oxidation; studies

Accident Tolerant Fuels could potentially provide a step-change in nuclear energy safety and economics, by removing the need for safety systems and providing inherent safety. One potential route to this is by offsetting an increased cladding cost with a fuel material containing more uranium, reducing the required enrichment or extending fuel life. At present there are significant technical challenges around all promising fuel materials, with a key issue being their reaction with high temperature steam. This project will explore the effects of light element concentration within UN on it's steam reaction. This has been shown to have significant effects on both the onset and rate of reaction, but remains poorly understood. This work will be combined with ongoing efforts to produce a composite material with UB2, which appears to improve UN behaviour but is also not well understood. The project will involve the manufacture and characterisation of fuel material using state-of-the-art facilities available through the Nuclear Fuel Centre of Excellence, located in the Sir Henry Royce Hub Building at the University of Manchester.

事故容忍燃料可以通过消除对安全系统的需求并提供固有的安全性，从而可能在核能安全和经济性方面提供一个台阶式的变化。一个可能的途径是用含有更多铀的燃料材料来抵消增加的包壳成本，减少所需的浓缩或延长燃料寿命。目前，所有有前途的燃料材料都面临着重大的技术挑战，其中一个关键问题是它们与高温蒸汽的反应。本计画将探讨UN内轻元素浓度对其蒸汽反应之影响。这已被证明对反应的发生和速率有显着影响，但仍然知之甚少。这项工作将与正在进行的生产具有UB2的复合材料的努力相结合，这似乎改善了联合国的行为，但也没有得到很好的理解。该项目将涉及使用位于曼彻斯特大学亨利罗伊斯爵士中心大楼的核燃料卓越中心提供的最先进设施制造燃料材料并对其进行定性。