• Journal of Inorganic Materials
  • Vol. 36, Issue 10, 1097 (2021)
Yiming LEI1、2, Jie ZHANG1、*, Guanghai BAI3, Yanwei ZHANG3, Xiaohui WANG1, and Jingyang WANG1
Author Affiliations
  • 11. Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
  • 22. School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China
  • 33. Life Management Technology Center, Suzhou Nuclear Power Research Institute, China Nuclear Power Technology Research Institute, Suzhou 215004, China
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    DOI: 10.15541/jim20210029 Cite this Article
    Yiming LEI, Jie ZHANG, Guanghai BAI, Yanwei ZHANG, Xiaohui WANG, Jingyang WANG. Influence of Al Content on Oxidation Resistance of Phase-pure Ti2AlC under Simulated Loss-of-coolant Accident Conditions [J]. Journal of Inorganic Materials, 2021, 36(10): 1097 Copy Citation Text show less

    Abstract

    To tailor Ti2AlC coatings for the applications in accident tolerant fuels, the oxidation of near-stoichiometric and Al-lean Ti2AlC was investigated in Ar-41% H2O atmosphere in 1000-1200 ℃. The oxidation kinetics of phase-pure Ti2AlC in high-temperature water vapor varied from parabolic to linear rate law with Al content decreasing. Insufficient Al content could not sustain the growth of continuous alumina scales, resulting in formation of thick unprotective TiO2-based scales. The formation of thin and protective Al2O3 scale for Ti2AlC with stoichiometric composition effectively inhibited the inward diffusion of water vapor. For the application of protective coatings on Zr-based cladding, stoichiometric Ti2AlC is expected to protect cladding from fast oxidation and improve the accident tolerance in the current light water reactors.
    Yiming LEI, Jie ZHANG, Guanghai BAI, Yanwei ZHANG, Xiaohui WANG, Jingyang WANG. Influence of Al Content on Oxidation Resistance of Phase-pure Ti2AlC under Simulated Loss-of-coolant Accident Conditions [J]. Journal of Inorganic Materials, 2021, 36(10): 1097
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