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Thermophysical Properties of Liquid AlTi-Based Alloys

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Abstract

The surface tension and density of three liquid AlTi-based alloys (AlTiV, AlTiNb, and AlTiTa) have been measured using electromagnetic levitation as a tool for containerless processing. Surface tension has been determined by the oscillating-drop method, while the density was measured using a shadowgraph technique. Both quantities were determined over a wide temperature range, including the undercooled regime. In addition, sessile-drop and pendant-drop experiments to determine the surface tension were performed in a recently built high-temperature furnace. The measured data were compared to thermodynamic calculations using phenomenological models and the Butler equation. Generally, good agreement was found.

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Authors and Affiliations

  1. Institut für Materialphysik im Weltraum, German Aerospace Center DLR, Cologne, Germany

    I. Egry & D. Holland-Moritz

  2. Institute for Energetics and Interphases, National Research Council CNR, Genoa, Italy

    R. Novakovic & E. Ricci

  3. Institute for Micro and Nanomaterials, University of Ulm, Ulm, Germany

    R. Wunderlich

  4. Foundry Research Institute (CHTS), Cracow, Poland

    N. Sobczak

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  1. I. Egry
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  2. D. Holland-Moritz
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  3. R. Novakovic
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  4. E. Ricci
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  5. R. Wunderlich
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  6. N. Sobczak
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Correspondence to I. Egry.

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Egry, I., Holland-Moritz, D., Novakovic, R. et al. Thermophysical Properties of Liquid AlTi-Based Alloys. Int J Thermophys 31, 949–965 (2010). https://doi.org/10.1007/s10765-010-0704-1

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  • DOI: https://doi.org/10.1007/s10765-010-0704-1

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