Abstract
The thermal conductivity, λ, of vitreous boron trioxide was measured, using a hot-wire procedure, from 170 to 570 K and under pressures of up to 1.7 GPa. The thermal conductivity at room temperature and zero pressure was found to be 0.52 W · m−1 · K−1. The values of the logarithmic pressure derivative, g = d(ln λ)/d(ln ρ), where ρ is the density, were found to be 1.1 for uncompacted glass and 0.7 for glass compacted to 1.2 GPa. The variation of λ with temperature at constant density was approximately linear, with a positive slope of 1.38×10−3W·m−1·K−2.
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Nilsson, O., Sandberg, O. & Bäckström, G. Thermal conductivity of B2O3 glass under pressure. Int J Thermophys 6, 267–273 (1985). https://doi.org/10.1007/BF00522148
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DOI: https://doi.org/10.1007/BF00522148