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Tolerance Factor and Phase Stability of the Normal Spinel Structure

机译:普通尖晶石结构的公差因子和相位稳定性

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摘要

Tolerance factor for the normal-spinel structure is introduced as a structural descriptor to predict the phase stability. It is derived following similar principles as those of perovskite and garnet structures, i.e., the geometrical relationship between multitype polyhedra. The calculation of tolerance factor only requires the ionic radii of compositional components involved. A survey of the tolerance factor over 120 AB(2)X(4)-type compounds proves the reliability. The numerical values are distributed below 1, which originates from the compressed octahedra which support the framework of spinet. The tolerance factor will be helpful in machine learning and high-throughput screening methods for fast evaluation of phase stability and materials properties of spinel-type compounds.
机译:将正常尖晶石结构的公差因子作为结构描述符,以预测相位稳定性。 它是根据佩罗夫斯基特和石榴石结构的类似原理推导出类似的原理,即多立方Polyhedra之间的几何关系。 耐受性因子的计算仅需要所涉及的组成成分的离子半径。 对120 AB(2)X(4)型化合物的公差因子的调查证明了可靠性。 数值分布在1以下,源自压缩的八面体,该压缩八面体源于支持丝石盒的框架。 公差因子将有助于机器学习和高通量筛选方法,以便快速评估尖晶石型化合物的相位稳定性和材料性质。

著录项

  • 来源
    《Crystal growth & design》 |2020年第3期|共5页
  • 作者

    Song Zhen; Liu Quanlin;

  • 作者单位

    Univ Sci &

    Technol Beijing Sch Mat Sci &

    Engn Beijing Key Lab New Energy Mat &

    Technol Beijing 100083 Peoples R China;

    Univ Sci &

    Technol Beijing Sch Mat Sci &

    Engn Beijing Key Lab New Energy Mat &

    Technol Beijing 100083 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 晶体学;
  • 关键词

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