Microstructure and transient laser thermal shock behavior of W–TiC–Y2O3 composites prepared by wet chemical method

Meng–Yao Y. Xu, Lai–Ma M. Luo, Jin–Shan S. Lin, Yue Xu, Xiang Zan, Qiu Xu, Kazutoshi Tokunaga, Xiao–Yong Y. Zhu, Yu–Cheng C. Wu

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Abstract

Tungsten is one of the most promising candidates for plasma-facing material for fusion. In this experiment, W–TiC–Y2O3 composites were successfully prepared by the wet chemical method. The properties of the W–TiC–Y2O3 composites were studied through field-emission scanning electron microscopy, high-resolution transmission electron microscopy, X-ray diffraction analysis, thermal conductivity, and transient laser thermal shock. During the sintering of the composite powder, TiC and Y2O3 precipitations converted to Y-Ti-O precipitations. After transient laser thermal shock, the composites underwent melting, cracking, and resolidification, resulting in changes in surface morphology and internal structure of the composites.

Original languageEnglish
Pages (from-to)784-790
Number of pages7
JournalJournal of Alloys and Compounds
Volume766
DOIs
Publication statusPublished - Oct 25 2018

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All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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