Title: The Molten State of Graphite. An Experimental Study.
Authors: MUSELLA ManuelaRONCHI ClaudioBRYKIN M.SHEINDLIN M.
Citation: Journal of Applied Physics vol. 84 no. 5 p. 2530-2537
Publication Year: 1998
JRC N°: JRC16821
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC16821
Type: Articles in Journals
Abstract: Sub-second laser heating technique has been succesfully applied for graphite melting under controlled isobaric conditions. During the applied pulses, relatively large amounts of graphite were melted and subsequently solidified under good stability conditions of the liquid mass. The SLV triple point was determined. From metallographic analysis of the quenched liquid, the expansion upon melting could be estimated. A mathematical model was then applied to deduce the thermal conductivity of liquid carbon. Both experimental observations and calculation results indicate a non-metallic nature of liquid carbon in the pressure range of 110-2500 bar. Finally, an analysis of the melting line Tm(p) based on Simpon's empirical equation of state confirms the self-consistency of all results obtained.
JRC Institute:Institute for Transuranium Elements

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