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Measurement of Thermal Diffusivity of Sheet Material by the Photoacoustic Technique

Wu Xiao Yin Qinrui Li Minghua Xi Tonggeng (Shanghai Institute of Ceramics,Academia Sinica)  
The thermal diffusivity of sheet materials is measured by the photoacoustic techni-que.The theoretical considerations,experimental procedures and data processing usedfor evaluating the thermal diffusivity are presented as well.With the metallic sheetspecimens of Armoc Fe,Cu,and Al,the results of the experiments are found to be ingood agreement with that recommended in literature.The fundamental theory andexperimental methods used here are also suitable for other organic and inorganic sheetmaterials.
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