Papers by Keyword: High Pure Aluminum

Abstract: In this paper, high pure α-Al₂O₃ powder is prepared through active hydrolysis by using high pure aluminum as raw material . Using X-ray diffractometer, scanning electron microscope, laser particle size analyzer and ICP-OES to research the phase transitions, organizational structure, particle size distribution and the purity of the α-Al₂O₃ powder. The results show that: the high pure α-Al₂O₃ powder have micrometer level of the size, good dispersion and purity of 5N under atomization, hydrolysis reaction and calcination at 1200°C for three hours.

Abstract: The AlTiC master alloy has been prepared in different components to refine 99.8%Al and 99.98％Al, then compared to two typical Al5Ti1B in refining efficiency and the grain nuclear. The result showed that the refining efficiency seemed better if the nucleation of high pure aluminum revealed complexity and variety. It may due to that the latency heterogeneous nucleation was efficient on the whole, consequently accelerated refining efficiency.