119 Ni-P アモルファス合金薄膜の異方性弾性率テンソルの測定と膜組織のマイクロメカニックス評価

• 荻 博次

  阪大

• 平尾 雅彦

  阪大

• 下池 剛

  阪大

• 高島 和希

  東工大

書誌事項

タイトル別名

• Anisotropic Elastic-Stiffness Tensor of an Ni-P Amorphous-Alloy Thin Film and Micromechanics Modeling for Evaluating Film's Microstructure

抄録

This study presents a complete set of effective elastic-stiffness coefficients of an Ni_<80>P_<20> amorphous-alloy thin film deposited on an aluminum-alloy substrate by electroless plating. The film thickness was 12 micrometers. The electromagnetic-acoustic-resonance method detected resonance frequencies of the triple-layered specimens (film/substrate/film), which enabled us to determine all five independent elastic-stiffness coefficients of the film using known substrate elastic properties. The resulting coefficients were those of a transverse isotropic material. There was strong anisotropy between the in-plane and normal directions; the in-plane Young's modulus is larger than the normal Young's modulus by 34%, for example. The anisotropic coefficients can be interpreted by considering a micromechanics model for local incomplete cohesion (thin ellipsoidal voids) aligned parallel to the film surface.

収録刊行物

• 材料力学部門講演会講演論文集

  材料力学部門講演会講演論文集 2002 (0), 71-72, 2002

  一般社団法人 日本機械学会

キーワード

• Anisotropic Elastic Constants
• Ni-P amorphous film
• Resonance Ultrasound Spectroscopy
• Electromagnetic Acoustic Resonance
• Micromechanics Modeling

詳細情報

• CRID: 1390001206066892928
• NII論文ID: 110002488025
• DOI: 10.1299/jsmezairiki.2002.0_71
• ISSN: 24331287
• Web Site: https://www.jstage.jst.go.jp/article/jsmezairiki/2002/0/2002_71/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可