Journal of Thermal Analysis and Calorimetry

, Volume 117, Issue 1, pp 173–187 | Cite as

Application of a novel type of adiabatic scanning calorimeter for high-resolution thermal data near the melting point of gallium

  • Jan Leys
  • Patricia Losada-Pérez
  • Christ Glorieux
  • Jan Thoen
Article

Abstract

A novel type of adiabatic scanning calorimeter (ASC) based on Peltier elements (PEs) is used to obtain high-resolution enthalpy and heat capacity data on the melting transition of gallium. The accuracy of the specific heat capacity and specific enthalpy is about 2 %, for a sub-mK temperature resolution. The simultaneously determined equilibrium specific heat capacity and specific enthalpy are used to determine the heat of fusion and the purity. In addition, the use of the PE-based ASC as a classical heat step calorimeter and as a constant rate (DSC-type) calorimeter is discussed. A comparison of the ASC results with literature data and DSC data shows the advantages of ASC for the study of phase transitions.

Keywords

Adiabatic scanning calorimetry Heat capacity Enthalpy Melting transition Gallium Peltier element 

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2014

Authors and Affiliations

  • Jan Leys
    • 1
  • Patricia Losada-Pérez
    • 1
    • 2
  • Christ Glorieux
    • 1
  • Jan Thoen
    • 1
  1. 1.Laboratorium voor Akoestiek en Thermische Fysica, Departement Natuurkunde en SterrenkundeKU LeuvenLeuvenBelgium
  2. 2.Institute for Materials Research IMOHasselt UniversityDiepenbeekBelgium

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