Issue |
EPJ Web of Conferences
Volume 15, 2011
LAM14 - XIV Liquid and Amorphous Metals Conference
|
|
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Article Number | 01024 | |
Number of page(s) | 7 | |
Section | Liquid metals and alloys | |
DOI | https://doi.org/10.1051/epjconf/20111501024 | |
Published online | 18 May 2011 |
https://doi.org/10.1051/epjconf/20111501024
Viscosity and volume properties of the Al-Cu melts
Institute of Physics and Technology, Ural State Pedagogical University, 26 Cosmonavtov ave., Ekaterinburg, 620017, Russia,
e-mail: pspopel@mail.ru
Temperature dependences of the kinematic viscosity v and the density ρ of Al-Cu melts were investigated in the same regime taking into account that viscometric experiments with the melts enriched with cupper have not been repeated since 1960th and densimetric measurements did not perform before at all. The first measurements were fulfilled using the method of dumping oscillation of a crucible filled in by a melt investigated. Its precision was as high as 1.5%. Density was measured using the gamma-absorption method with the accuracy of 0.2 to 0.3%. Crucibles of BeO were used in both the cases. In the course of the measurements a distinct branching of the heating and cooling curves were fixed below some temperature characteristic of each composition for most of the investigated samples. The branching temperature systematically changes with growth of cupper content. The authors believe that the effect is caused by the irreversible transition of the melts from microheterogeneous state inherited from the initial rough materials into a true solution state.
© Owned by the authors, published by EDP Sciences, 2011
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