Simultaneous measurement of heat capacity, thermal conductivity, and thermal diffusivity
Wolfgang Poessnecker, Ulrich Gross
A new instrument is presented for the simultaneous measurement of the specific heat, thermal conductivity, and thermal diffusivity of solids and powdery materials in very wide ranges of their thermal conductivity (0.01 to 200 W m-1 K-1) at temperatures between 100 °C and 1750 °C. These properties are usually determined by means of transient hot-wire methods, transient hot-strip methods, step-wise or pulse transient plane-source methods. With these methods either thermal diffusivity and thermal conductivity or specific heat and thermal diffusivity can be determined, but with the new procedure all thermophysical properties can be measured simultaneously.