Effective thermal conductivity of porous strontium oxide and strontium carbonate samples

The thermal diffusivity of some pressed powder strontium oxide (SrO) and st rontium carbonate (SrCO3) samples has been measured from room temperature t o 1400 degrees C in vacuum and in an argon atmosphere using the laser flash technique. The structures of the samples have been analyzed using a scanni ng electron microscope and a theoretical model has been successfully used t o compare experimental data with model calculations. (C) 1999 American Inst itute of Physics. [S0021-8979(99)09701- 7].