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Abstract
The effect of oxide film on the surface of an atomized aluminium powder compacted under pressure was investigated in a sintering process by means of measuring electrical resistivity, observation with a scanning electron microscope, and measurements with an X-ray photoelectron spectrometer. Oxidation of the compact in air was also observed. On the basis of these results, hot-rolling of the compact in air was undertaken to produce an aluminium sheet, with successful results under appropriate compacting pressure, heating time and sintering temperature before rolling.