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

Tage Emil Christensen, Claus Behrens

    Publikation: KonferencebidragPosterForskning

    Abstract

    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.
    OriginalsprogEngelsk
    Publikationsdato2004
    StatusUdgivet - 2004
    BegivenhedInternational Workshop on Dynamics in Viscous Liquids - München, Tyskland
    Varighed: 14 mar. 200417 mar. 2004
    Konferencens nummer: 1

    Konference

    KonferenceInternational Workshop on Dynamics in Viscous Liquids
    Nummer1
    LandTyskland
    ByMünchen
    Periode14/03/200417/03/2004

    Citer dette

    Christensen, T. E., & Behrens, C. (2004). An analysis of boundary-effects in obtaining the frequency dependent specific heat by effusivity measurements. Poster session præsenteret på International Workshop on Dynamics in Viscous Liquids, München, Tyskland.