Deviation from the Fourier law in room-temperature heat pulse experiments

Soma Both, Balázs Czél, Tamás Fülöp, Gyula Gróf, Ákos Gyenis, Róbert Kovács, Peter Ván, József Verhás

Research output: Contribution to journalArticle

37 Citations (Scopus)


We report heat pulse experiments at room temperature that cannot be described by Fourier's law. The experimental data are modeled properly by the Guyer-Krumhansl equation, in its over-diffusion regime. The phenomenon may be due to conduction channels with differing conductivities and parallel to the direction of the heat flux.

Original languageEnglish
Pages (from-to)41-48
Number of pages8
JournalJournal of Non-Equilibrium Thermodynamics
Issue number1
Publication statusPublished - Jan 1 2016


  • Flash method
  • Guyer-Krumhansl equation
  • heat pulse experiment
  • over-diffusive regime

ASJC Scopus subject areas

  • Chemistry(all)
  • Physics and Astronomy(all)

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