Materials pp 285-292 | Cite as

Electrical Resistivity of Nanocrystalline Ni-P Alloys

  • K. Lu
  • Y. Z. Wang
  • W. D. Wei
  • Y. Y. Li
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 38)

Abstract

Nanometer-size polycrystalline Ni—P alloys that contain two phases of Ni3P and Ni were synthesized by the crystalline process from an amorphous Ni80P20 alloy that had been isothermally annealed at certain temperatures. Nanocrystalline Ni—P samples with different mean grain sizes (10 to 100 nm) were prepared by changing the annealing temperature and time. The electrical resistivity of these nanocrystalline ribbon samples was measured with the conventional dc four-probe method from room temperature to liquid nitrogen temperature. The resistivities were linearly proportional to the absolute temperature before the onset of grain growth at about 613 K. The temperature coefficients of resistivity varied slightly with the mean grain sizes; the residual resistivities decreased significantly (from 214.1 to 65.5 μΩ• cm) as the grain size increased from 11 to 102 nm. The dependence of the residual resistivity on grain size can be reasonably correlated to the relationship between the interface volume fraction and growth size. These results indicate that the resistivity of the nanocrystalline materials is strongly dependent on the interface characteristics.

Keywords

Electrical Resistivity Amorphous Alloy Nanocrystalline Material Residual Resistivity Nanocrystalline Alloy 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    R. Birringer, U. Herr, and H. Gleiter, Nanocrystalline materials — A first report, Trans. Jpn. Inst. Met. Suppl. 27: 43 (1986).Google Scholar
  2. 2.
    R. Birringer, Nanocrystalline materials, Mater. Sci. Eng. A117: 33 (1989).CrossRefGoogle Scholar
  3. 3.
    H. Gleiter, Nanocrystalline materials, Prog. Mater. Sci. 33: 233 (1989).CrossRefGoogle Scholar
  4. 4.
    H. E. Schaefer, R. Wurschum, R. Birringer, and H. Gleiter, Structure of nanometersized polycrystalline iron investigated by positron lifetime spectroscopy, Phys. Rev. B38: 9549 (1988).Google Scholar
  5. 5.
    K. Lu, J. T. Wang, and W. D. Wei, A new method for synthesizing nanocrystalline alloys, J. Appl. Phys. 69 (1): 522 (1991).CrossRefGoogle Scholar
  6. 6.
    M. L. Sui, L. Y. Xiong, W. Deng, K. Lu, S. Patu, and Y. Z. He, Investigation of the interfacial defects in a nanocrystalline Ni-P alloy by positron annihilation spectroscopy, J. Appl. Phys. 69(8) (1991), in press.Google Scholar
  7. 7.
    M. L. Sui, K. Lu, and X. Z. He, A structural investigation of the crystallization products of an amorphous Ni-P alloy, Philos. Mag. B63 (1991), in press.Google Scholar
  8. 8.
    K. Lu, W. D. Wei, and J. T. Wang, Grain growth kinetics and interfacial energies in nanocrystalline Ni—P alloys, J. Appl. Phys. 69(10) (1991), in press.Google Scholar
  9. 9.
    F. Warkusz, The scattering of electrons on grain boundaries: Electrical conductivity, Thin Solid Films 161: 1 (1988).CrossRefGoogle Scholar
  10. 10.
    G. Reiss, J. Vancea, and H. Hoffmann, Grain boundary resistance in polycrystalline metals, Phys. Rev. Lett. 56 (19): 2100 (1986).CrossRefGoogle Scholar
  11. 11.
    M. L. Sui, S. Patu, and Y. Z. He, Influence of interfaces on the mechanical properties in polycrystalline Ni—P alloys with ultrafine grains, Scripta Metall. Mater. 25(7) (1991), in press.Google Scholar

Copyright information

© Springer Science+Business Media New York 1992

Authors and Affiliations

  • K. Lu
    • 1
  • Y. Z. Wang
    • 1
  • W. D. Wei
    • 1
  • Y. Y. Li
    • 1
  1. 1.Institute of Metal ResearchAcademia SinicaShenyangChina

Personalised recommendations