An analysis of boundary-effects in obtaining the frequency dependent specific heat by effusivity measurements

Tage Emil Christensen, Claus Behrens

    Research output: Contribution to conferencePosterResearch


    The frequency dependent specific heat is a significant response function characterizing the glass transition. Contrary to the dielectric response it is not easily measured over many decades. The introduction of the 3-omega method, where the temperature oscillations at a planar oscillatoric heat generator is measured, made this possible. The method relied on a 1-d solution to the heat diffusion equation. There have been attempts to invoke the boundary effects to first order. However we present the fully 3-d solution to the problem including these effects. The frequency range can hereby be considerably enhanced.
    Original languageEnglish
    Publication date2004
    Publication statusPublished - 2004
    EventInternational Workshop on Dynamics in Viscous Liquids - München, Germany
    Duration: 14 Mar 200417 Mar 2004
    Conference number: 1


    ConferenceInternational Workshop on Dynamics in Viscous Liquids

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