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Density and thermal expansion of liquid binary Al–Ag and Al–Cu alloys

  • Jürgen Brillo , Ivan Egry and Jenny Westphal
Published/Copyright: March 1, 2013
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International Journal of Materials Research
From the journal International Journal of Materials Research Volume 99 Issue 2

Abstract

Densities and thermal expansion coefficients of liquid Al–Ag and Al–Cu alloys were measured using the technique of electromagnetic levitation. This technique involves producing shadow images of the sample from which the volume is calculated by an image processing algorithm.

Data was obtained at temperatures above the melting point. The concentration dependence of density and thermal expansion was studied for both systems. It was found for Al–Ag and Al–Cu that both density and thermal expansion can be related to a negative excess volume and its temperature coefficient.

Keywords:: Al–Ag alloys; Al–Cu alloys; Density; Electromagnetic levitation; Excess volume
2 Correspondence address: Prof. Ivan Egry, Institut für Materialphysik im Weltraum, Deutsches Zentrum für Luft- und Raumfahrt e. V. (DLR), D-51170 Köln, Germany, Tel.: +49 2203 601 2844, Fax: +49 2203 601 2255. E-mail:

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Received: 2007-07-18
Accepted: 2007-10-19
Published Online: 2013-03-01
Published in Print: 2008-02-01

© 2008, Carl Hanser Verlag, Munich

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https://doi.org/10.3139/146.101623
Keywords for this article
Al–Ag alloys; Al–Cu alloys; Density; Electromagnetic levitation; Excess volume

Articles in the same Issue

  1. Contents
  2. Contents
  3. Editorial
  4. IJMR wishes all its readers and contributors a belated Happy New Year
  5. Basic
  6. Experimental study of the phase relations in the Fe–Zn–Cr system at 600°C
  7. Thermodynamic description of the ternary Pd–Sn–Zn system
  8. The morphology of nitrided iron–chromium alloys; influence of chromium content and nitrogen supersaturation
  9. The surface tension and density of Ag–Bi–Sn alloys
  10. Density and thermal expansion of liquid binary Al–Ag and Al–Cu alloys
  11. Hardening precipitation and mechanical properties in new Mg–Mn–Y–Gd alloys
  12. On recrystallization texture formation in polycrystalline fcc alloys with low stacking fault energies
  13. A numerical study of grain size effects on the strength and elongation of Al polycrystals using strain gradient plasticity theory
  14. Applied
  15. Thermodynamic simulation of the Bayer process
  16. The anisotropy of deformation for friction stir processed Mg alloy due to the existence of onion rings
  17. A study of the Si-phase growth mechanismin thixocast (A356) alloy during hot deformation
  18. Study of hydrogen absorption of aluminum melt
  19. Modelling of work-hardening behaviour for laser welded magnesium alloy
  20. Tribological behavior of short carbon fiber or hybrid with SiCp reinforced Al alloy composites
  21. Elevated temperature compressive behavior of Nb-22Ti-16Si-7Cr-3Al-3Ta-2Hf alloy with minor Ho addition
  22. Notifications
  23. News
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