トリウムの電解精製と精製金属の二三の冶金学的性質

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タイトル別名
  • Electrorefining of Thorium Metal and Some Metallurgical Properties of the Refined Metal
  • トリウム ノ デンカイ セイセイ ト セイセイ キンゾク ノ ニサン ノ ヤキンガクテキ セイシツ

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抄録

High purity thorium metal was prepared by electrorefining crude metal in molten potassium thorium fluoride dissolved in NaCl-KCl bath. In this process, noble or base metallic impurities such as Fe, Co and rare earths were thoroughly eliminated, and high purity thorium crystals were obtained as cathode deposit. The purity and the crystal size of the refined metal was improved by lowering the applied voltage to about 0.4 V. The hardness of the crystal was about 33∼42 in V.H.N., and comparable to that of standard iodide thorium. The button ingot was arc-melted and was cold-rolled to a thin foil of 0.05 mm thick. The microstructure and the other metallurgical properties are also described.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 23 (6), 336-340, 1959

    公益社団法人 日本金属学会

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