The thermal diffusivity of Ge has been measured over a temperature range from 300° C to 1010° C which includes values for the melt. Specific heat has been measured from room temperature to 727° C. Thermal conductivity has been calculated over the same temperature range as the diffusivity measurements. These data are reported along with the best values from the literature for the other parameters which are required to calculate the temperature and convective fields for the growth of germanium by the Bridgman method. These parameters include the specific heat, the viscosity, the emissivity, and the density as a function of temperature.
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Crouch, R.K., Fripp, A.L., Debnam, W.J. et al. Thermophysical Properties of Germanium for Thermal Analysis of Growth From the Melt. MRS Online Proceedings Library 9, 657–663 (1981). https://doi.org/10.1557/PROC-9-657