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Development of thermodynamic database for nuclear fuel element materials and its application in the design of nuclear materials

Abstract

核能是一种重要的新能源,而核材料将是实现核反应堆安全、高效运行的重要物质保障。核燃料元件(核燃料+包壳)材料是核反应堆材料中的重要组成部分。由于核燃料元件材料的研究受到苛刻的实验条件限制,通过大量实验尝试的传统材料研究方法不适合于该材料的研发。为了设计高性能的核燃料元件材料,有必要掌握相关的相图和热力学信息。本论文基于计算相图的方法(CALPHAD),对核燃料元件材料常用元素组成的体系进行了热力学优化与计算,并在此基础上建立了核燃料元件材料的热力学数据库,主要研究工作如下: (1)基于文献报道的U-X(X:Pb,Sn,Ru,Re),Pu-X(X:Pb,Ru,O)和Th-X(X:Re,O)各个...Nuclear energy is an important kind of new energies, and it is an important guarantee for the secure and highly efficient operation of the nuclear reactors. Nuclear fuel element ( nuclear fuel + cladding) materials are the vital part of nuclear materials. However, due to the rigorous restriction of the experimental conditions for the nuclear fuel element material, the traditional trial and error m...学位:工学博士院系专业:材料学院材料科学与工程系_材料学学号:2072008015001

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