Czechoslovak Journal of Physics B

, Volume 21, Issue 3, pp 269–274 | Cite as

Electrical resistance of platinum wires during annealing and quenching in air and helium

  • J. Polák
  • L. Kunz
Article
Received:

Abstract

Electrical resistance of platinum wires annealed and quenched in air and helium was measured. No irreversible changes of the electrical resistance were observed in specimens treated in helium, however, these changes were appreciable in specimens treated in air. By measurement at two temperatures the total change was divided into the change of the electrical resistivity and the change of geometrical dimensions. The changes of geometrical dimensions were interpreted in terms of the oxidation of platinum and the activation energy of oxidation of platinum was determined asE=(1.79±0.04) eV.

Keywords

Oxidation Activation Energy Platinum Helium Electrical Resistivity 
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.
This is a preview of subscription content, log in to check access.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. [1]
    Bradshaw F. J., Pearson S.: Phil. Mag.1 (1956), 812 and 880.Google Scholar
  2. [2]
    Bacchella G. L., Germagnoli E., Granato S.: J. Appl. Phys.30 (1959), 748.Google Scholar
  3. [3]
    Jackson J. J.in Lattice Defects in Quenched Metals. (Editor Cotterill R. M. C. et al.) Academic Press, New York 1965.Google Scholar
  4. [4]
    Polák J.: Phys. Stat. Sol.21 (1967), 581.Google Scholar
  5. [5]
    Čížek A.: Czech. J. Phys.B 16 (1966), 842; Czech. J. Phys.B 17 (1967), 186.Google Scholar
  6. [6]
    Polák J.: Čs. Čas. Fys.A 16 (1966), 321.Google Scholar
  7. [7]
    Kunz L.: Diploma Thesis. Institute of Metallurgy and Faculty of Natural Sciences of the University, Brno 1970.Google Scholar
  8. [8]
    Míšek K., Polák J.: Čs. Čas. Fys.A 13 (1963), 87.Google Scholar
  9. [9]
    Míšek K.: Czech. J. Phys.B 17 (1967), 647.Google Scholar
  10. [10]
    Kopaň V. S., Skorochod M. J.: Issledovanie nesoverstenstvokristallicheskovo stroenia. Naukovaja dumka, Kiev, 1965 (p. 99).Google Scholar
  11. [11]
    Kubashevski O., Hopkins B. E.: Oxidation of Metals and Alloys. Butterworths, London, 1962.Google Scholar
  12. [12]
    Alcock C. B., Hooper G. W.: Proc. Roy. Soc. London254 (1960), 551.Google Scholar
  13. [13]
    Fryburg G. C., Petrus H. M.: J. Electrochem. Soc.108 (1961), 496.Google Scholar

Copyright information

© Academia, Publishing House of the Czechoslovak Academy of Sciences 1971

Authors and Affiliations

  • J. Polák
    • 1
  • L. Kunz
    • 1
  1. 1.Institute of Physical MetallurgyCzechosl. Acad. Sci.BrnoCzechoslovakia

Personalised recommendations