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The thermal conductivity of slags used in electroslag remelting
Author(s) -
Taylor Roy,
Mills Kenneth C.
Publication year - 1982
Publication title -
archiv für das eisenhüttenwesen
Language(s) - English
Resource type - Journals
eISSN - 1869-344X
pISSN - 0003-8962
DOI - 10.1002/srin.198205132
Subject(s) - thermal conduction , thermal conductivity , heat transfer , analytical chemistry (journal) , laser flash analysis , materials science , crystallite , thermodynamics , chemistry , mineralogy , physics , metallurgy , chromatography
Measurements of thermal diffusivities of solid ESR slags from the system CaF 2 + Al 2 O 3 + CaO for temperatures between 200 and 1200°C using laser flash method. Thermal conductivities derived from these data. In the polycrystalline specimens used in this study the radiation conduction is shown to be negligible, heat transfer occurs predominantly by phonon conduction. An appreciable contribution to the thermal conductivity arises from gaseous conduction across pores and microcracks in the specimen. Thermal conductivity decreases with decreasing CaF 2 content.