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Laser based method for surface tension and density measurements for liquid refractory metals (Nb, Ta, and W)

Article dans une revue avec comité de lecture
Author
DAL, Morgan
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
COSTE, Frédéric
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
SCHNEIDER, Matthieu
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
BOLIS, Riccardo
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
FABBRO, Rémy
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]

URI
http://hdl.handle.net/10985/15459
DOI
10.2351/1.5096138
Date
2019
Journal
Journal of Laser Applications

Abstract

The increase of process simulations in industry leads to the need of accurate knowledge of material thermal properties. As the determination of liquid metal properties is quite difficult, this article presents an experimental setup and a technique to estimate the surface tension and the density of several refractory metals (Nb, Ta, and W) and their variation with the temperature. This work is based on the well known sessile droplet method applied in a controlled atmosphere (Ar) and coupled to thermal measurements. The particularity of this work is the acquisition of measurements up to high temperatures (over 3500 K).

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