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Supercooling measurement in W, Ta, Nb and Re liquid metals by stereophotocalorimetric method

  • Inorganic Compounds
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Abstract

The technique of crystal growth coupled with a stereophotocalorimetric method has been used in a series of supercooling measurements on pure refractory metals. The cooling history of these metals is recorded on photographic films which are calibrated as a function of the temperature. High absolute amounts of supercooling has been observed in W, Ta, Nb and Re liquid droplets. It is noted that the brightness traces of the solidification process for highly supercooled Re droplets evidence of two successive phase transformations (Re cfc to Re hc) shows.

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Authors and Affiliations

  1. Institute of Experimental Physics, University of Lausanne, Switzerland

    D. Houch & L. Rinderer

  2. Institute of Physics, Federal University of Rio de Janeiro, RJ-21945-970, Rio de Janeiro, Brazil

    V. Soares

Authors
  1. D. Houch
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  2. V. Soares
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  3. L. Rinderer
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Additional information

We thank the Fonds National de Recherche Scientifiques of Switzerland.

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Houch, D., Soares, V. & Rinderer, L. Supercooling measurement in W, Ta, Nb and Re liquid metals by stereophotocalorimetric method. Journal of Thermal Analysis 49, 1277–1281 (1997). https://doi.org/10.1007/BF01983684

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  • DOI: https://doi.org/10.1007/BF01983684

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