Regularities in the Temperature Dependence of the Thermal Conductivity of Refractory Products and Two Metallic Alloy Groups
Two exponents were generated, n and N where the reference point for N is the exponent to the bases of the Euler constant e (thermal conductivity at 1 K) and the temperature dependence is the exponent n to the temperature in Kelvin.
Within different refractory groups there is a linear dependence between the exponents N and n with a very high coefficient of determination. The same relation was found for two groups of metallic alloys.
High coefficients of determination within refractory groups enables to calculate the temperature-thermal conductivity values within the range from 0 up to 1400 ºC from one single thermal conductivity/temperature value and gives the possibility to calculate the integral mean of the thermal conductivity between two temperatures.