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TVT, 2009, Volume 47, Issue 3, Pages 354–359 (Mi tvt814)  

This article is cited in 26 scientific papers (total in 26 papers)

Thermophysical Properties of Materials

The kinematic viscosity of liquid copper-aluminum alloys

N. Yu. Konstantinova, P. S. Popel', D. A. Yagodin

Urals State Pedagogical University

Abstract: The method of damped torsional vibrations of crucible with liquid under investigation is used for measuring the temperature dependences of kinematic viscosity $\nu$ of $Cu_{100 - x}Al_x$ melts $(x = 0$$100$ at.%$)$ in the range of temperatures $t$ between the liquidus and $1100$$1450^{\circ}$C. Unlike the majority of such experiments, the measurements are performed both in the process of heating the sample after its melting and in the course of subsequent cooling. The branching of $\nu(t)$ curves corresponding to the foregoing modes is revealed below certain temperatures dependent on the composition of sample (viscosity hysteresis). The curves obtained under cooling have a simple exponential shape predicted by activation theories of viscous flow. The obtained temperature dependences are used for constructing isotherms of kinematic viscosity, on which maxima are observed in the vicinity of stoichiometric concentration of $CuAl_3$ and composition of $Cu$–$30$ at.% $Al$. For the same compositions, extrema are observed on the concentration dependence of activation energy of viscous flow.

Full text: PDF file (577 kB)

English version:
High Temperature, 2009, 47:3, 336–341

Bibliographic databases:

UDC: 532.61.08+531.756
PACS: 66.20.+d; 83.85.Hf
Received: 11.04.2008

Citation: N. Yu. Konstantinova, P. S. Popel', D. A. Yagodin, “The kinematic viscosity of liquid copper-aluminum alloys”, TVT, 47:3 (2009), 354–359; High Temperature, 47:3 (2009), 336–341

Citation in format AMSBIB
\by N.~Yu.~Konstantinova, P.~S.~Popel', D.~A.~Yagodin
\paper The kinematic viscosity of liquid copper-aluminum alloys
\jour TVT
\yr 2009
\vol 47
\issue 3
\pages 354--359
\jour High Temperature
\yr 2009
\vol 47
\issue 3
\pages 336--341

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  • Teplofizika vysokikh temperatur Teplofizika vysokikh temperatur
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