Abstract
The thermal conductivity of polycrystalline magnesium oxide has been measured over the temperature range from 400 K to 1300 K using a modified guarded-hot-plate design. Three different thicknesses of specimens having 93 % of theoretical density were tested to verify the operation, accuracy, and reproducibility of our apparatus. The measured thermal conductivity ranges from 30 W · m-1 · K-1 down to 8 W · m-1 · K-1 and has an inverse-temperature functionality. The results agree well with literature values for this material.
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Slifka, A. J., Filla, B. J., & Phelps, J. M. (1998). Thermal Conductivity of Magnesium Oxide from Absolute, Steady-State Measurements. Journal of Research of the National Institute of Standards and Technology, 103(4), 357–363. https://doi.org/10.6028/jres.103.021
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