二酸化ゲルマニウムの六方晶系より正方晶系への転移

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書誌事項

タイトル別名
  • Transformation of Hexagonal to Tetragonal Germanium Dioxide
  • 2サンカ ゲルマニウム ノ 6ポウショウケイ ヨリ セイホウショウケイ エ ノ テンイ シリョウ

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説明

The transformation of hexagonal to tetragonal germanium dioxide was studied in the temperature range 760°to 900°C by X-ray diffraction analysis. Lithium carbonate was used as the minor component added to germanium dioxide.<br>The experimental results obtained are summarized as follows:<br>(1) The hexagonal form transforms to the tetragonal form through an intermediate transition phase.<br>(2) The transition phase is found to be noncrystalline from the evidence of X-ray analysis.<br>(3) The transformation proceeds by a series of consecutive reactions A→B→C in which A, B and C are the hexagonal form, the intermediate phase, and the tetragonal form, respectively.

収録刊行物

  • 材料

    材料 22 (235), 319-322, 1973

    公益社団法人 日本材料学会

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