Title: Thermophysical properties of metals at very high temperatures obtained by dynamic heating techniques: recent advances

Authors: M. Boivineau, G. Pottlacher

Addresses: Commissariat a l'Energie Atomique, Centre de Valduc, Departement de Recherche sur les Materiaux Nucleaires, 21120 Is-sur-Tille, France. ' Institut fur Experimentalphysik, Technische Universitat Graz, Petergasse 16, A-8010 Graz, Austria

Abstract: Since the 1960s, resistive pulse self-heating techniques, associated with 10⁴ - 10¹⁰ K.s^-1 heating rates, have been widely developed in order to study both solid and liquid states of pure and alloyed metals at very high temperature (up to 10,000 K). This paper is a review of the main recent results and advances obtained with such techniques. Thermophysical properties such as electrical resistivity, heat of fusion, melting points, volume expansion (density), heat capacity, thermal conductivity, thermal diffusivity, heat capacity, etc., of solid and liquid metals are then reachable throughout these high-speed experiments. This large set of thermophysical data may be completed with critical points determination as well as elastic constants data and equation-of-state parameters.

Keywords: critical points; electrical resistivity; emissivity; enthalpy; equation-of-state; EOS parameters; high pressure; high temperature; isobaric expansion experiment; IEX; laser polarimetry; liquid alloys; liquid metals; optical pyrometry; pulse heating; sound speed; thermophysical properties; volume expansion; material properties; elastic constants.

DOI: 10.1504/IJMPT.2006.009468

International Journal of Materials and Product Technology, 2006 Vol.26 No.3/4, pp.217 - 246

Published online: 04 Apr 2006 *

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