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Simultaneous Fast Dehydrogenation of TiH2 and Rapid Synthesis of TiB2-TiC Through Self-Propagating High-Temperature Synthesis of TiH2-B4C System

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Abstract

Fast dehydrogenation of titanium hydride (TiH2) and simultaneous rapid synthesis of TiB2-TiC were both achieved through self-propagating high-temperature synthesis reaction from TiH2-B4C. Compared with Ti, TiH2 significantly decreased ignition temperature and oxygen content, refined the microstructure, and increased the density. These contributed to the improvements of hardness, flexural strength, and fracture toughness of TiB2-TiC bulk material made from TiH2-B4C. All of these advantages were closely related to the removal of H. The mechanism was discussed in detail.

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Authors and Affiliations

  1. School of Aerospace, Mechanical and Manufacturing Engineering, RMIT University, Melbourne, VIC, 3001, Australia

    Y. F. Yang (ARC DECRA Fellow)

  2. School of Mechanical and Mining Engineering, The University of Queensland, Brisbane, QLD, 4072, Australia

    Y. F. Yang (ARC DECRA Fellow) & D. K. Mu (Postdoctoral Research Fellow)

Authors
  1. Y. F. Yang
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  2. D. K. Mu
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Correspondence to Y. F. Yang.

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Manuscript submitted August 14, 2013.

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Yang, Y.F., Mu, D.K. Simultaneous Fast Dehydrogenation of TiH2 and Rapid Synthesis of TiB2-TiC Through Self-Propagating High-Temperature Synthesis of TiH2-B4C System. Metall Mater Trans A 45, 3184–3188 (2014). https://doi.org/10.1007/s11661-014-2307-0

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  • DOI: https://doi.org/10.1007/s11661-014-2307-0

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