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Thermal characterization of ceramic tapes using photoacoustic effect

Thermal characterization of alumina–zirconia and zirconia ceramic tapes using a photoacoustic technique is presented. A transmission‐mode geometry is employed for the measurement of thermal diffusivity while a reflection‐mode geometry is used for the measurement of thermal effusivity. In both these geometries, the same open photoacoustic cell is used. From the measured values of thermal diffusivity and thermal effusivity, the thermal conductivity value has also been evaluated. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)