Microscopic Elastic Properties of Polycrystalline Mg₈₅Zn₆Y₉ Alloy with Long-Period Stacking Ordered 18R Phase Investigated by Inelastic X-ray Scattering

• Hosokawa Shinya

  Department of Physics, Graduate School of Science and Technology, Kumamoto University

• Yamasaki Michiaki

  Magnesium Research Center, Kumamoto University Department of Materials Science, Graduate School of Science and Technology, Kumamoto University

• Kawamura Yoshihito

  Magnesium Research Center, Kumamoto University Department of Materials Science, Graduate School of Science and Technology, Kumamoto University

• Inui Masanori

  Graduate School of Integrated Arts and Sciences, Hiroshima University

• Kajihara Yukio

  Graduate School of Integrated Arts and Sciences, Hiroshima University

• Tsutsui Satoshi

  Japan Synchrotron Radiation Research Institute, SPring-8

• Baron Alfred Q. R.

  Japan Synchrotron Radiation Research Institute, SPring-8 Materials Dynamics Laboratory, RIKEN SPring-8 Center, RIKEN

書誌事項

タイトル別名

• Microscopic Elastic Properties of Polycrystalline Mg₈₅Zn₆Y₉ Alloy with Long-Period Stacking Ordered 18R Phase Investigated by Inelastic X-ray Scattering

抄録

Inelastic X-ray scattering measurements were performed on polycrystalline Mg₈₅Zn₆Y₉ alloy with long-period stacking ordered 18R phase to clarify the microscopic elastic properties. Tiny but clear excitation signals of longitudinal acoustic (LA) modes are observed in the whole Q range measured (Q < ∼16 nm⁻¹). In addition, the transverse acoustic and unknown modes are detectable in the second Brillouin zone (∼13 < Q < ∼26 nm⁻¹). The microscopic sound velocity of the LA modes is similar to the macroscopic value. The microscopic Poisson ratio is 0.22 ± 0.04, slightly smaller than the macroscopic value of 0.26 and usual metal values of ∼0.3, indicating a hard stiffness of the bond angles.

収録刊行物

• MATERIALS TRANSACTIONS

  MATERIALS TRANSACTIONS 56 (7), 914-916, 2015

  公益社団法人 日本金属学会

キーワード

• phonon dynamics
• magnesium alloys
• synchronized long-period stacking-ordered phase

詳細情報

• CRID: 1390282679230263424
• NII論文ID: 130005083567
• NII書誌ID: AA1151294X
• DOI: 10.2320/matertrans.mh201409
• ISSN: 13475320
• ISSN: 13459678
• NDL書誌ID: 026564344
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I026564344
• Web Site: https://www.jstage.jst.go.jp/article/matertrans/56/7/56_MH201409/_pdf
• 本文言語コード: en
• データソース種別:
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  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可