Determination of Intrinsic Diffusion Coefficients in a Wide Concentration Range of a Cu–Ni Couple by the Multiple Markers Method

• Iijima Yoshiaki

  Department of Materials Science, Faculty of Engineering, Tohoku University

• Hirano Ken-ichi

  Department of Materials Science, Faculty of Engineering, Tohoku University

• Kikuchi Motoji

  Graduate School, Tohoku University

Bibliographic Information

Other Title

• Determination of Intrinsic Diffusion Coefficients in a Wide Concentration Range of a Cu–Ni Couple by the Multiple Markers Method

Abstract

Intrinsic diffusion coefficients, D_Cu and D_Ni, in the concentration range from 25 to 80 at% Cu at 1273 K have been determined by measuring the shifts of multiple markers of chromium oxide particles (about 1 \micron diameter) which had been embedded before diffusion in the nickel side of a semi-infinite couple consisting of pure copper and nickel in a way that the markers array has made an angle of π⁄4 rad with the diffusion direction. By the present method, it is possible to provide more detailed concentration dependence of the intrinsic diffusion coefficients than those by the usual methods. The intrinsic diffusion coefficients determined by the present work are in agreement with the results by Heumann and Grundhoff, although the present values including the interdiffusion coefficient are apparently high in the copper-rich region because of the formation of large Kirkendall voids.

Journal

• Transactions of the Japan Institute of Metals

  Transactions of the Japan Institute of Metals 23 (1), 19-23, 1982

  The Japan Institute of Metals

Keywords

• General Engineering

Details

• CRID: 1390001205117957632
• NII Article ID: 130003485938
• DOI: 10.2320/matertrans1960.23.19
• COI: 1:CAS:528:DyaL38XhtFSmsL8%3D
• ISSN: 24324701
• ISSN: 00214434
• Web Site: https://www.jstage.jst.go.jp/article/matertrans1960/23/1/23_1_19/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed