Kapitza resistence of low acoustic impedance solids (ice and bismuth)

Studies of nucleation and heat transfer in liquid helium isotopes 3 and 4

“…This has allowed measurements of hk in the temperature range of 4.0 to 4.6 K in helium-4 and 2.5 to 2.8 K in helium-3. Our results are roughly consistent with an extrapolation of previously reported temperature dependent results in the range 1-2 K (Cheeke 1973).…”

“…We have fit these data, along with our higher temperature results, to an empirical power law form in order to determine the dependence of Kapitza conductance with temperature. The best fit for all of our data between 1.4 and 4.5 K is obtained using the coefficients hk = 0.18 * T 1 • 8 • This value has been reported elsewhere to be hk = 0.16 * T 2 • 4 in the temperature range 1-2 K (Cheeke 1973).…”

“…External 10-4 10-5 10-5 Touloukian (1970), Snyder (1969), and Cheeke (1973), as well as from our own experimental results. The results for the external time constant for Rhodium-Iron and Germanium should be considered to be order of magnitude estimates only.…”