Medium-entropy (Ti, Zr, Hf)2SC MAX phase
作者： Ke Chen , Youhu Chen , Jianning Zhang , Yujie Song , Xiaobing Zhou
DOI: 10.1016/J.CERAMINT.2020.11.096
关键词:
摘要: Abstract Medium- and high-entropy alloys or ceramics for tuning the physicochemical properties of materials by combination multiple principal elements have received much interest. Herein, a medium-entropy (Ti, Zr, Hf)2SC phase was synthesized attributing to structural chemical diversity MAX phases. The crystal structure determined Rietveld refinement XRD, SEM, atom-resolved TEM along with EDS elemental analysis. Phase evolution X-ray diffraction patterns TG/DSC curves were employed reveal synthesis mechanism from 2TiC–Zr–ZrC-2HfH2-3.2FeS reactant system. Vicker's hardness electrical resistivity found higher than those Ti2SC, but thermal conductivity lower.
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