Heat transport through helium II: Kapitza conductance

A review is presented of experimental and theoretical work on the Kapitza conductance, which limits the heat that can be transferred from a solid to helium II. A short derivation of the phonon radiation limit indicates the reason for the approximate T 3 temperature dependence of the Kapitza conducta...

Full description

Saved in:
Bibliographic Details
Published in:Cryogenics 1970, Vol.10 (2), p.89-95
Main Author: Snyder, N.S
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A review is presented of experimental and theoretical work on the Kapitza conductance, which limits the heat that can be transferred from a solid to helium II. A short derivation of the phonon radiation limit indicates the reason for the approximate T 3 temperature dependence of the Kapitza conductance. The small size of this upper limit makes the Kapitza conductance a critical factor in He II heat transfer applications. Considerable qualitative and quantitative correspondence of the data with this limit is found. From the limited evidence available, the role of surface conditions and bulk parameters in determining the conductance are considered empirically. An examination of the theories of Kapitza conductance which have been proposed shows that none provide adequate explanations of the data, and that the underlying physical phenomena remain obscure. Because of the scarcity of available data, and discrepancies between experiments, the prediction of Kapitza conductance for design purposes from theory or experiment is difficult.
ISSN:0011-2275
1879-2235
DOI:10.1016/0011-2275(70)90077-9