A transient technique for measuring the thermal conductivity of non-metals

I. S. Lisker, S. V. Solovyev, B. P. Axcell, B. R. Varlow, Kenneth Donnelly

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    Abstract

    A transient technique for the measurement of the thermal conductivity of non-metals is described. A small sample of material is held between a hot copper block and a cold base, and the thermal conductivity of the material is deduced from the exponential decay in the temperature difference between the copper block and the base. The influences of heat losses from the block and contact resistance are established by calibration. Very rapid measurements may be made to an accuracy of about ±5% over the thermal conductivity range 0.1–1 W/m K, although thermal conductivities outside this range may also be measured with careful operation using samples of an appropriate size. The accuracy and repeatability of the results are demonstrated by the results of tests on small resin samples.
    Original languageEnglish
    Pages (from-to)377-382
    Number of pages6
    JournalExperimental Thermal and Fluid Science
    Volume25
    Issue number6
    DOIs
    Publication statusPublished - Dec 2001

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    Lisker, I. S., Solovyev, S. V., Axcell, B. P., Varlow, B. R., & Donnelly, K. (2001). A transient technique for measuring the thermal conductivity of non-metals. Experimental Thermal and Fluid Science, 25(6), 377-382. https://doi.org/10.1016/S0894-1777(01)00090-5