Radiation effects and differential damage in binary carbide hybrids

二元碳化物混合物中的辐射效应和差异损伤

• 批准号: EP/P027962/1
• 负责人: Karl Whittle
• 金额: $ 2.52万
• 依托单位: University of Liverpool
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2017
• 资助国家: 英国
• 起止时间: 2017 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FP027962%2F1
• 关键词: Radiation; effects; differential; damage; binary

Recent innovations in material science has led to a range of new materials being identified as being usable within nuclear reactor cores, these range from SiC based ceramics, to novel alloys such as FeCrAl, and to hybrids with both metallic and ceramic properties. One specific area that is become more timely is the potential use of binary carbides such as SiC-SiC which is a system based on two distinct SiC phases. This proposal takes this work as a concept, modifying it to use SiC and TiC, two carbides with different material properties, but which together may have advantageous properties when used within a nuclear core.This proposal examines the effects of damage on the interfaces between the TiC and SiC, for example the impact of differential expansion due to induced damage, or the potential for fission gas bubble formation at the interfaces. These are just two of the potential issues that face such systems and which are part of this work.The project utilises the unique facilities at Argonne National Laboratory (IVEM-TANDEM), and at Oak Ridge National Laboratory (LAMDA), in concert with the ATR-NSUF programme providing access.

材料科学领域的最新创新已经催生了一系列可用于核反应堆堆芯的新材料，其中包括碳化硅基陶瓷、FeCrAl 等新型合金以及具有金属和陶瓷特性的混合物。一个变得更加及时的特定领域是二元碳化物的潜在用途，例如 SiC-SiC，这是一种基于两种不同 SiC 相的系统。该提案将这项工作作为一个概念，对其进行修改以使用 SiC 和 TiC，这两种碳化物具有不同的材料特性，但在核芯内使用时它们一起可能具有有利的特性。该提案研究了损伤对核材料之间界面的影响。 TiC 和 SiC，例如由于诱导损伤而导致的差异膨胀的影响，或在界面处形成裂变气泡的可能性。这些只是此类系统面临的两个潜在问题，也是这项工作的一部分。该项目利用阿贡国家实验室 (IVEM-TANDEM) 和橡树岭国家实验室 (LAMDA) 的独特设施，与ATR-NSUF 计划提供访问权限。