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.
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References
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GutinS. S., PANOVA. A., and KHLOPINM. I.: Soy. Powder Metall. Met. Ceram., 1972, 11, 280.
