Thermal Conductivity of Ice

Abstract

The thermal conductivity of ice, formed at different cooling rates during the solidification process, is measured between 2 and 80 K. It is found that the thermal conductivity depends upon the cooling rate. The density of vibrational states is determined from the heat capacity data available in literature and is used in the analysis of thermal conductivity. The umklapp processes, boundary scattering, and point defects are considered along with dislocations or tunnelling states as scattering mechanisms. It is found that the model based on two-level tunnelling states provides a better fit to the experimental data than the model based on the presence of dislocations.

Probing Energy Landscapes of Cytochrome b6f with Spectral Hole Burning: Effects of Deuterated Solvent and Detergent

“…Heat conductivities of either amorphous ice or glycerol at cryogenic temperatures are also in the range 0.1−1 W/m•K. 46,47 The data on various water/cryoprotectant mixtures as well as various tissues is available only down to about 120 K. 48 However, in this range, the heat conductivities of the mixtures lay between those of ice and pure glycerol. Similar heat conductivity values were calculated for green fluorescent protein and myoglobin in ref 49.…”

“…The low-temperature heat conductivity of the deuterated ethanol is indeed somewhat lower than that of the regular ethanol. Heat conductivities of either amorphous ice or glycerol at cryogenic temperatures are also in the range 0.1–1 W/m·K. , The data on various water/cryoprotectant mixtures as well as various tissues is available only down to about 120 K . However, in this range, the heat conductivities of the mixtures lay between those of ice and pure glycerol.…”

Thermal conductivity of crystalline and amorphous ices and its implications on amorphization and glassy water

“…This method has been the most commonly used to study k of ice Ih at, or below, atmospheric pressure. [31][32][33][34] However, even under these simpler conditions, it is difficult to avoid large errors due to heat flux other than along the rod and inaccuracies in the dimensions needed to calculate k, i.e. the distance between the thermocouples and the cross-sectional area of the rod.…”