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Metastable precipitation of YAIO3 in isothermally solidified YAG/(Al2O3-rich) spinel composites

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Abstract

Phase composition and microstructure of isothermally solidified YAG/spinel (or Al2O3-rich solid solution) composites were investigated. It was verified that an equilibrium binary eutectic phase region consisting of YAG and Al2O3-rich spinel solid solution exists in the YAG-spinel-Alumina ternary system. Moreover, it was identified that a metastable system, YAlO3 and Al2O3-rich spinel solid solution, could be formed during rapid cooling from the eutectic temperature.

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Authors and Affiliations

  1. Materials Structure Designing Laboratory,, National Industrial Research Institute of Nagoya,, 1-1 Hirate-cho, Kita-ku,, Nagoya, 462,, Japan

    S. Wang, T. Akatsu, Y. Tanabe & E. Yasuda

  2. Research Center for Materials Design, Materials and Structures Laboratory,, Tokyo Institute of Technology,, 4259 Nakatsuta, Midori-ku,, Yokohama, 226,, Japan

    F. Yamamoto

Authors
  1. S. Wang
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  2. F. Yamamoto
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  3. T. Akatsu
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  4. Y. Tanabe
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  5. E. Yasuda
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Wang, S., Yamamoto, F., Akatsu, T. et al. Metastable precipitation of YAIO3 in isothermally solidified YAG/(Al2O3-rich) spinel composites. Journal of Materials Science 33, 5157–5162 (1998). https://doi.org/10.1023/A:1004471601794

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  • DOI: https://doi.org/10.1023/A:1004471601794

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