Thermal Conductivity of Clear Fused Silica at High Temperatures
- 1 November 1959
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 30 (11), 1702-1705
- https://doi.org/10.1063/1.1735040
Abstract
The thermal conductivity of clear fused silica was measured over the temperature range 300–2100°K in an experiment which minimized radiative energy transport. This was a steady‐state experiment involving the measurement of the electric current and voltage drop through a fine tungsten wire which was embedded along the axis of a cylindrical silica rod. The wire served both as a heating element and as a resistance thermometer. Thermal conductivities were calculated by graphical evaluation of the rate of change of electric power with temperature at different temperatures. The experiment yielded thermal conductivities between 2.6×10−3 and 2.9×10−3 cal/cm sec°K at room temperature, and between 4.5×10−3 and 5.5×10−3 cal/cm sec°K over the temperature range 1000–2100°K.Keywords
This publication has 2 references indexed in Scilit:
- The Emissivity of Transparent MaterialsJournal of the American Ceramic Society, 1956
- Thermal Conductivity: XII, Temperature Dependence of Conductivity for Single‐Phase CeramicsJournal of the American Ceramic Society, 1955