Ion-induced phase change of Zr film on sapphire. Formation of high pressure phase.

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  • Ｚｒ金属薄膜におけるイオン照射誘起相転移　　高圧相の生成
  • Zr キンゾク ハクマク ニ オケル イオン ショウシャ ユウキ ソウテンイ
  • Formation of High Pressure Phase
  • 高圧相の生成

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Abstract

Crystalline phase transformation from α-phase to ω-phase(high pressure phase) was found to occur in Zr thin film on sapphire when it was irradiated with N+ or Ar+ions at low temperature. Ion irradiation at ambient temperature caused only grain growth of the α-phase. The ω-phase formation is tentatively attributed to crystal growth in collision cascade under large compressive stress which was generated by preceding irradiation.

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