Thermal Diffusivity Measurements of Boron Oxide Melts by Laser Flash Method

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  • OGURA Gaku
    Research Institute of Mineral Dressing and Metallurgy, Tohoku University
  • SUH In-Kook
    Research Institute of Mineral Dressing and Metallurgy, Tohoku University
  • OHTA Hiromichi
    Department of Metallurgical Engineering, Faculty of Engineering, Ibaraki University
  • WASEDA Yoshio
    Research Institute of Mineral Dressing and Metallurgy, Tohoku University

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  • レーザーフラッシュ法による溶融酸化ホウ素の熱拡散率測定
  • レーザー フラッシュホウ ニ ヨル ヨウユウ サンカ ホウソ ノ ネツ カクサ

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Abstract

Thermal diffusivities of molten boron oxide, which is one of the favorable liquid capsule materials for producing GaAs or GaP single crystals, have been measured systematically in the temperature range between 1000 and 1500K using a three layered laser flash method. The thermal diffusivity of molten boron oxide were found to decrease with increasing content of P2O5 or In2O3 additives.

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