An X-ray Study of the Heusler-type Ordering in AuAgZn<SUB>2</SUB> Alloy

• Murakami Yuichiro

  Department of Chemistry, Faculty of Science, Kyoto University

• Watanabe Yasuhiro

  Graduate School, Kyoto University

• Kachi Sukeji

  Department of Chemistry, Faculty of Science, Kyoto University

抄録

The kinetic behavior of the Heusler(L2₁)-type ordering in the stoichiometric AuAgZn₂ alloy quenched from the CsCl(B2)-type ordered region was studied by X-ray diffraction. The degrees of the B2-type order (S₁) and the L2₁-type order (S_H) and the domain size of the L2₁-type superstructure were measured as a function of annealing time during the isothermal ordering process at 366, 386 and 406 K. The isothermal change of S_H was analyzed by the standard rate equation and the activation energy of the L2₁-type ordering was found to be 46 kJ/mol. The increase of the L2₁-type domain size was proportional to the three-tenth power of the annealing time. The temperature dependence of S₁ and S_H were also studied. S₁ showed a minimum whereas S_H decreased to zero at the critical temperature of the L2₁-type order on heating.

収録刊行物

• Transactions of the Japan Institute of Metals

  Transactions of the Japan Institute of Metals 21 (11), 708-713, 1980

  社団法人 日本金属学会

キーワード

• General Engineering

詳細情報

• CRID: 1390001205117562240
• NII論文ID: 130003485804
• DOI: 10.2320/matertrans1960.21.708
• COI: 1:CAS:528:DyaL3MXhtVOltbc%3D
• ISSN: 24324701
• ISSN: 00214434
• Web Site: https://www.jstage.jst.go.jp/article/matertrans1960/21/11/21_11_708/_pdf
• 本文言語コード: en
• 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