Toward New High Temperature Reference Materials for Calorimetry and Thermal Analysis

The French National Metrology Laboratory LNE-LCM has developed a high temperature reference facility for accurate measurements of the specific heat capacity and of the enthalpy of fusion of materials over the temperature range [23 [degrees]C, 1000 [degrees]C]. The metrological approach was to modify...

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Bibliographic Details
Published in:EPJ Web of conferences 2014, Vol.77, p.19-1-00019-6
Main Authors: Razouk, R., Hay, B., Himbert, M.
Format: Article
Language:English
Subjects:
Binary alloys
Calibration
Calorimetry
Enthalpy
Indium
Metrology
Silver base alloys
Uncertainty
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Summary:The French National Metrology Laboratory LNE-LCM has developed a high temperature reference facility for accurate measurements of the specific heat capacity and of the enthalpy of fusion of materials over the temperature range [23 [degrees]C, 1000 [degrees]C]. The metrological approach was to modify a commercial Calvet calorimeter in order to lower the uncertainty of measurement and to insure the metrological traceability of the measurements to the SI units, in particular by designing a new calibration system. The enthalpies of fusion of pure metals (indium, tin and silver) and of a binary alloy Ag-28Cu have been measured. The results obtained on the three pure metallic materials are in very good agreement with data obtained by other National Metrology Institutes (NMIs) using adiabatic calorimetry.
ISSN:2100-014X
2100-014X
DOI:10.1051/epjconf/20147700019