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Measuring thermal conductivity of powders with differential scanning calorimetry

A simplified method

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Abstract

This paper simplifies a recently proposed method for measuring the thermal conductivity of powders using differential scanning calorimetry (DSC) (Sánchez-Rodríguez et al. in J Therm Anal Calorim 121:469–473, 2015). With this method, a crucible is filled with powder and a spherical metal reference is partially sunk into it. The thermal resistance between the metal and the crucible wall at the metal melting point is obtained from the DSC melting peak slope. In the simplified method outlined in this paper, a cylindrical pan is substituted for the original hemispherical crucible. The equivalence of both methods is demonstrated with alumina powder and commercial cylindrical crucibles of several sizes and aspect ratios.

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Acknowledgements

This work was partially funded by the Spanish Programa Nacional de Materiales through project MAT2014-51778-C2-2-R. The authors wish to thank the University of Girona for the Ph.D. fellowship granted to Daniel Sánchez-Rodríguez and for the use of the thermal analysis facilities (Serveis Tècnics de Recerca).

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Authors and Affiliations

  1. GRMT, Department of Physics, University of Girona, E17071, Girona, Catalonia, Spain

    Miquel Pujula, Daniel Sánchez-Rodríguez, Jordi Farjas & Pere Roura

  2. Unitat d’Anàlisi Tèrmica (STR), University of Girona, E17071, Girona, Catalonia, Spain

    Joan Pere Lopez-Olmedo

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  1. Miquel Pujula
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  2. Daniel Sánchez-Rodríguez
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  3. Joan Pere Lopez-Olmedo
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  4. Jordi Farjas
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  5. Pere Roura
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Correspondence to Pere Roura.

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Pujula, M., Sánchez-Rodríguez, D., Lopez-Olmedo, J.P. et al. Measuring thermal conductivity of powders with differential scanning calorimetry. J Therm Anal Calorim 125, 571–577 (2016). https://doi.org/10.1007/s10973-016-5274-4

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  • DOI: https://doi.org/10.1007/s10973-016-5274-4

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