SiC fuel cladding: Macroscopic effects of radiation on mechanical and thermal properties from microstructural-scale characterisation and modelling

SiC 燃料包壳：微观结构尺度表征和建模中辐射对机械和热性能的宏观影响

• 批准号: EP/N017110/1
• 负责人: David Armstrong
• 金额: $ 60.33万
• 依托单位: University of Oxford
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2015
• 资助国家: 英国
• 起止时间: 2015 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FN017110%2F1
• 关键词: SiC; fuel; cladding; Macroscopic; effects

Silicon carbide is a candidate material for accident tolerant fuel cladding applications in nuclear power reactors due to its good neutronic performance for light water reactors, high temperature strength, exceptional stability under irradiation, and reduced oxidation compared to conventional Zircaloy fuel cladding under accident conditions. The development and investigation of these materials is particularly important in the light of the Fukushima event and the subsequent emphasis on Accident Tolerant Fuel concepts (ATF). Recent efforts have attempted to model the behaviour of several SiC-based cladding designs under realistic LWR operating conditions, and give predictions of stresses and failure probabilities throughout the fuel life. These models treat the very complex, highly structured SiC-SiC composite as a homogenous material. This assumption seriously limits the applicability and accuracy of these models and such models cannot be used effectively to optimize the cladding macro and microstructure.In order to design these materials to produce the best possible performance, a more refined model is needed representing accurately the composite microstructure and the behaviour of the various components For such a comprehensive model, the material properties of the constituent components of the composites, their mutual interfaces, and the way these respond to irradiation, are needed as input parameters.This project aims to develop localized materials assessment techniques to directly measure mechanical and thermal properties of the individual constituents of SiC-based claddings at the relevant micro-scale, before and after irradiation, in order to provide input parameters for a comprehensive model which will be developed and validated in this program.

碳化硅是核电反应堆耐事故燃料包壳应用的候选材料，因为它具有轻水反应堆良好的中子性能、高温强度、辐照下出色的稳定性以及与传统锆合金燃料包壳相比在事故条件下减少的氧化。鉴于福岛事件以及随后对事故容忍燃料概念（ATF）的重视，这些材料的开发和研究尤为重要。最近的努力尝试对几种基于碳化硅的包壳设计在实际轻水堆运行条件下的行为进行建模，并预测整个燃料寿命期间的应力和故障概率。这些模型将非常复杂、高度结构化的 SiC-SiC 复合材料视为均质材料。这种假设严重限制了这些模型的适用性和准确性，并且此类模型无法有效地用于优化熔覆宏观和微观结构。为了设计这些材料以产生最佳性能，需要更精细的模型来准确表示复合材料微观结构对于这样一个综合模型，需要复合材料组成部分的材料特性、它们的相互界面以及它们对辐照的响应方式作为输入参数。该项目旨在开发本地化材料评估直接测量机械和热性能的技术在辐照之前和之后，在相关微观尺度上分析碳化硅基包壳的各个成分，以便为将在该计划中开发和验证的综合模型提供输入参数。

项目成果

Journal of Materials Research

• DOI: 10.1557/s0883769400056396
• 发表时间: 1991-08
• 期刊: MRS Bulletin
• 影响因子: 5
• 作者: Gary L. Messing;Publications Manager Ellen W. Kracht;Linda A. Baker;Kirby L. Morris;Eileen M. Kiley;Jinju Chen;Photocatalysis Xiaobo Chen;Yang-T. Cheng;Paolo Colombo;Michele Manuel;Magnetic materials Michael E. McHenry;S. Misture;Sarah E. Morgan;Paul Muralt;Jun-Sheng Li;Hui Huang;Yong-Jiang Zhou;Chao-Yang Zhang;Zhao-Ting Li;Yequan Xiao;Shisheng Li;Yishi Su;Huiling Jin;Yu Huang;Q. Ouyang;Di Zhang;Jufeng Huang;Wei Xing;E. Mohagheghpour;Marjan Rajabi;R. Gholamipour

Linking microstructure and local mechanical properties in SiC-SiC fiber composite using micromechanical testing

• DOI: 10.1016/j.actamat.2019.02.001
• 发表时间: 2019-04
• 期刊: Acta Materialia
• 影响因子: 9.4
• 作者: Y. Zayachuk;Phani S. Karamched;C. Deck;P. Hosemann;D. Armstrong

Statistically sound application of fiber push-out method for the study of locally non-uniform interfacial properties of SiC-SiC fiber composites

• DOI: 10.1016/j.jeurceramsoc.2019.11.041
• 发表时间: 2020-04
• 期刊: Journal of the European Ceramic Society
• 影响因子: 5.7
• 作者: A. Hussey;R. D. De Meyere;C. Deck;David J Armstrong;Y. Zayachuk

Applications of Multivariate Statistical Methods and Simulation Libraries to Analysis of Electron Backscatter Diffraction and Transmission Kikuchi Diffraction Datasets

多元统计方法和仿真库在电子背散射衍射和透射菊池衍射数据集分析中的应用

• DOI: 10.48550/arxiv.1806.02087
• 发表时间: 2018
• 作者: Wilkinson A

Measurement of swelling-induced residual stress in ion implanted SiC, and its effect on micromechanical properties

• DOI: 10.1016/j.actamat.2020.06.030
• 发表时间: 2020-09-01
• 期刊: ACTA MATERIALIA
• 影响因子: 9.4
• 作者: Leide, Alexander J.;Todd, Richard I.;Armstrong, David E. J.
• 通讯作者: Armstrong, David E. J.