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.
|Publication status||Published - 2004|
|Event||International Workshop on Dynamics in Viscous Liquids - München, Germany|
Duration: 14 Mar 2004 → 17 Mar 2004
Conference number: 1
|Conference||International Workshop on Dynamics in Viscous Liquids|
|Period||14/03/2004 → 17/03/2004|
Christensen, T. E., & Behrens, C. (2004). An analysis of boundary-effects in obtaining the frequency dependent specific heat by effusivity measurements. Poster session presented at International Workshop on Dynamics in Viscous Liquids, München, Germany.