METHOD FOR BULK MATERIALS SPECIFIC HEAT CAPACITY DETERMINATION

摘要

FIELD: physics, measurement equipment.;SUBSTANCE: invention refers to the field of technical physics, namely to the thermal methods of materials research. The method for bulk materials specific heat capacity determination includes sealing of a volume with a sample of known mass, the sample is brought into plane thermal contact with heat sources, heat is supplied to the sample, was heat sources temperature and specific power are measured, heat flows through the sample are calculated. Throughout the entire measurement process, consistent pressure in the sealed volume occupied by the gas phase of the sample is ensured, due to continuous changing of this volume. Volume changes and sample average volume temperature change are recorded, then the specific heat capacity of the material is calculated.;EFFECT: invention provides improved accuracy of measurement of bulk material sample specific heat capacity due to the inclusion of thermal expansion of the sample gas phase into the measurement results.;1 dwg