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Temperature and Heat Flow Rate Calibration of a Calvet Calorimeter from \(0\,{^{\circ }}\hbox {C}\) to \(190 \,{^{\circ }}\hbox {C}\)

  • Daeho Kim
  • Joohyun LeeEmail author
  • Suyong Kwon
Article
  • 186 Downloads
Part of the following topical collections:
  1. Special Issue: Advances in Thermophysical Properties

Abstract

This study describes the temperature and heat flow rate calibrations of a Calvet calorimeter (SETARAM, BT2.15) in the temperature range of 0–190 \({^{\circ }}\hbox {C}\). Temperature calibration is carried out using three reference materials, namely water, gallium, and indium, as specified in the International Temperature Scale of 1990 (ITS-90). The sample temperature of the Calvet calorimeter is corrected by the obtained mean value, \(-0.489 \,{^{\circ }}\hbox {C}\), of the measured extrapolated peak onset temperature (\(T_{e})\) when the heating rate (\(\upbeta )\) is zero (\(\Delta T_\mathrm{corr }(\upbeta ~=~0\))). The heat flow rate is calibrated using a reference material with a known heat capacity, namely SRM 720 \(\alpha \)-\(\hbox {Al}_{2}\hbox {O}_{3}\) (synthetic sapphire), which is traceable to the National Institute of Standards and Technology. From the heat flow rate measurements of the blank baseline and SRM 720, the proportional calibration factor, \(\hbox {K}_{\Phi }\), in the 0–190\( \,{^{\circ }}\hbox {C}\) temperature range was determined. The specific heat capacity of copper was measured with the obtained calibration values, and the measured data show consistency with the reference value.

Keywords

Calibration factor Calvet calorimeter DSC Heat flow calibration SRM 720 Temperature calibration 

Notes

Acknowledgements

This work was supported by Grant 17011046 from the Korea Research Institute of Standards and Science under the project ‘Establishment of National Physical Measurements Standards and Improvements of Calibration/Measurement Capability’.

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© Springer Science+Business Media, LLC 2017

Authors and Affiliations

  1. 1.Center for Thermometry, Division of Physical MetrologyKorea Research Institute of Standards and ScienceDaejeonRepublic of Korea

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