Pulse calorimetry at high temperatures

Year: 2000

Authors: Righini F., Bussolino GC., Spisiak J.

Autors Affiliation: CNR Istituto di Metrologia, G. Colonnetti, Strada delle Cacce, 73, 10135 Torino, Italy; Institute of Physics, Slovak Academy of Sciences, Bratislava, Slovakia

Abstract: Pulse-heating techniques have been developed in the last 30 years to overcome difficulties of steady-state experiments in the high temperature range. In these methods the specimen is pulse-heated to high temperatures in short times (typically less than 1s) using Joule heating and the various experimental quantities are measured with millesecond to microsecond time resolution. Many thermophysical properties are measurable with these methods, including heat capacity, melting point and enthalpy of fusion. In the high temperature range (above 1000K) these absolute techniques provide accurate calorimetric data and have been used to characterize different materials taking advantage of the possibility to determine several properties in a single experiment of subsecond duration. The state-of-the-art of pulse calorimetry is reviewed making reference to the apparatus developed at the Istituto di Metrologia \”G. Colonnetti\” (IMGC, Torino, Italy), with a particular emphasis on the characterization of some reference materials (molybdenum, tungsten and platinum) in the temperature range 1000-3600K.

Journal/Review: THERMOCHIMICA ACTA

Volume: 347 (1-2)      Pages from: 93  to: 102

More Information: Vedecká Grantová Agentúra MŠVVaŠ SR a SAV, VEGA, 2/5084/98. – One of the authors (J.S.) gratefully acknowledges the financial support received from the Slovak Grant Agency (VEGA) under contract 2/5084/98.
KeyWords: Heat capacity; High temperature; Pulse methods; Reference materials; Thermophysical properties
DOI: 10.1016/S0040-6031(99)00421-9

Citations: 21
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