Surface and bulk characterization of molten In and In-Sn alloys (Abstract/Poster in atti di convegno)

Type
Label
  • Surface and bulk characterization of molten In and In-Sn alloys (Abstract/Poster in atti di convegno) (literal)
Anno
  • 2010-01-01T00:00:00+01:00 (literal)
Alternative label
  • Gauzzi F., Giuranno D., Montanari R., Novakovic R., Ricci E., Varone A. Gauzzi F.; Giuranno D.; Montanari R.; Novakovic R.; Ricci E.; Varone A. (2010)
    Surface and bulk characterization of molten In and In-Sn alloys
    in XIV Liquid and Amorphous Metals Conference
    (literal)
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  • Gauzzi F., Giuranno D., Montanari R., Novakovic R., Ricci E., Varone A. Gauzzi F.; Giuranno D.; Montanari R.; Novakovic R.; Ricci E.; Varone A. (literal)
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  • In: LAM XIV - XIV Liquid and Amorphous Metals Conference (Rome (Italy), 11-16 July 2010). Abstract, pp. 233 - 233. UNI Roma, 2010. (literal)
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  • Numerical modelling of casting and solidification of metallic alloys is of increasing importance in industrial processing for the optimisation of production technology and for designing new and improved casting techniques to deliver high-quality products or new production routes. In both cases, the processes are primarily governed by the alloy solidification behaviour, which is, essentially, related to thermodynamics, kinetics and capillarity. In this work a double contribution to the characterization of molten In and In-Sn alloys considered as main components of an important class of lead free solder materials is shown: the study of the influence of oxygen on the capillary phenomena and the XRD investigation of the structure of liquid in a range of temperatures around that of liquidus. The DST experimental data in terms of effective oxygen pressure of In-Sn binary alloys of different compositions were compared with the data for the pure In and the theoretical predictions, revealing that the lower oxidizability of indium was shown to control indium-tin alloys with a tin content up to about 80 at% , due to the presence of the most volatile oxide In2O. From the XRD spectra the radial distribution functions (RDF) have been determined for each alloys. Experiments of High Temperature X-ray diffraction (HT-XRD) showed that atomic clustering forms in the melt immediately before the appearing of the first solid. The structure of clusters is correlated to that of solid. (literal)
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  • Dipartimento di Ingegneria Meccanica- Università di Roma-Tor Vergata, Roma, Italy, CNR-IENI, Genova (literal)
Titolo
  • Surface and bulk characterization of molten In and In-Sn alloys (literal)
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