Solidification Process of a Binary Alloy by Dual Wavelength Holographic Interferometry

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  • D112 二波長ホログラフィ干渉法を用いた二成分水溶液の凝固過程
  • ニ ハチョウ ホログラフィ カンショウホウ オ モチイタ 2セイブン スイヨウエキ ノ ギョウコ カテイ

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Abstract

An experimental study on the transient solidification of a binary solution in the rectangular container cooled from its top, bottom or side wall is reported in this paper. An ammonium chloride aqueous solution was used as a binary solution. Dual wavelength holographic interferometry was used to visualize the transient temperature and concentration field and to measure the local heat and mass transfer rates at the mush/liquid interface. The experiments were performed varying the initial concentration from 5wt% to 25wt%.<BR>As a result, the influence of the rejection of solute on heat and mass transfer rates is clarified.

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