Vacancy-solute binding energies in aluminum by positron annihilation

H. Ohkubo, Y. Nagai, K. Inoue, Z. Tang, M. Hasegawa

研究成果: Conference contribution

4 被引用数 (Scopus)

抄録

To obtain vacancy-solute binding energies in Al, we employed coincidence Doppler broadening (CDB) method of positron annihilation at high temperatures. By measuring the elemental specific momentum distribution of core electrons in high momentum region, we tried to observe directly vacancy-solute complexes in thermal equilibrium states. However, in the case of a dilute Al-Zn alloy, no vacancy-Zn complex was detected within an experimental accuracy, strongly suggesting that the binding energies are vanishingly small. The small binding energies are consistent with the previous thermal equilibrium experiments, but not with the quenching ones.

本文言語English
ホスト出版物のタイトルPositron Annihilation
ホスト出版物のサブタイトルProceedings of the 13th International Conference on Positron Annihilation, ICPA-13
編集者Toshio Hyodo, Haruo Saito, Yoshinori Kobayashi, Yasuyuki Nagashima
出版社Trans Tech Publications Ltd
ページ165-167
ページ数3
ISBN(印刷版)9780878499366
DOI
出版ステータスPublished - 2004
イベントPositron Annihilation: Proceedings of the 13th International Conference on Positron Annihilation, ICPA-13 - Kyoto, Japan
継続期間: 2003 9 72003 9 12

出版物シリーズ

名前Materials Science Forum
445-446
ISSN(印刷版)0255-5476
ISSN(電子版)1662-9752

Other

OtherPositron Annihilation: Proceedings of the 13th International Conference on Positron Annihilation, ICPA-13
国/地域Japan
CityKyoto
Period03/9/703/9/12

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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