Advertisement

Journal of Materials Science

, Volume 14, Issue 10, pp 2366–2372 | Cite as

Liquid-liquid interfacial tension measurements applied to molten Al-halide systems

  • L. Martin-Garin
  • A. Dinet
  • J. M. Hicter
Papers

Abstract

After a brief review of the theory concerning the formation of a meniscus by a flat, vertical blade, the equipment and testing procedure used are described. The value of the interfacial tension between molten aluminium and flux (made of the equimolar mixture, NaCl-KCl) at 740° C isγ=792 dyn cm−1. The influence of the addition of various fluorides (NaF, KF, LiF, Na3AlF6) to the NaCl-KCl flux on the interfacial tension value between aluminium and flux was then studied. For a given molar fraction of salt addition, the interfacial tension decreases when the resulting effect increases in the following order: Na3AlF6<LiF<NaF<KF. The results obtained with the addition of Na3AlF6 and NaF match those obtained previously by Kurdyumovet al.

Keywords

Interfacial Tension Buoyancy Force Molten Aluminium Liquid Aluminium Solid Inclusion 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    P. Kozakewitch, G. Urbain andM. Sage,Iron Coal Trades Rev. 170 (1955) 963.Google Scholar
  2. 2.
    P. Kozakewitch andL. D. Lucas,Rev. Metall. September (1968) 589.Google Scholar
  3. 3.
    A. V. Kurdyumov, G. A. Grigoriev, S. V. Inkin, E. V. Vygoskii andB. I. Stepanov,Sov. Non-Ferrous Met. Res. 2 (4) (1973) 211.Google Scholar
  4. 4.
    L. H. Van Vlack,Trans. AIME 191 (1951) 251.Google Scholar
  5. 5.
    E. W. Dewing andP. Desclaux,Met. Trans. B 8B (1977) 555.CrossRefGoogle Scholar
  6. 6.
    H. Bouasse, “Capillarité — Phénomènes superficiels” (Librairie Delagrave, Paris, 1924).Google Scholar
  7. 7.
    J. O. M. Bockris, J. L. White, J. D. Mackenzie, “Physico Chemical Measurements at high temperature”, (Butterworth, London, 1959).Google Scholar
  8. 8.
    L. D. Lucas, “Physicochemical measurements in metal research”, Vol. 4 edited by R. A. Rapp (Interscience, New York, 1970) p. 219.Google Scholar

Copyright information

© Chapman and Hall Ltd. 1979

Authors and Affiliations

  • L. Martin-Garin
    • 1
  • A. Dinet
    • 2
  • J. M. Hicter
    • 2
  1. 1.Université Scientifique et Médicale de GrenobleENSEEG-LTPCMSt Martin-d'HèresFrance
  2. 2.Service Etudes Structurales - Aluminium PéchineyCentre de Recherches de VoreppeVoreppeFrance

Personalised recommendations