INVESTIGATIONS OF HEAT DIFFUSIVITY OF SOFC COMPONENTS BY A LASER FLASH METHOD

摘要

A laser flash method of measuring the heat diffusivity was applied to the SOFC components,yttria-stabilized zirconia (YSZ) and lanthanum perovskite-type oxide disks. Differential scanning calorimetry was also applied to these oxides. The heat diffusivity is determined by the transient temperaturerise shape of the disk, and the thermal conductivity is determined by the heatcapacity. YSZ shows superior thermal properties to those of any other oxides.