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Information × Registration Number 2112U001349, Article popup.category Thesis Title popup.author popup.publication 01-01-2012 popup.source_user Сумський державний університет popup.source http://essuir.sumdu.edu.ua/handle/123456789/34932 popup.publisher Sumy State University Description In this study, Al-Al2O3 nanocomposite powders containing 5, 10 and 15 Wt% of nanopowder were produced by mechanical alloying. For comparing, Al-Al2O3 composite powder containing 5Wt% of micrometric Al2O3 was also produced. The powder was then hot-pressed in a mold to produce bulked parts. The effect of Al2O3 content on grain growth, density, hardness and bending strength of bulked composite was discussed and microstructures were investigated by optical, scanning and transmission electron microscopy. The results revealed that when nanometric particles were used instead of micrometric particles the grain growth was reduced, while the increase of particle weight percentage did not affect the grain growth. The results also showed that when weight percentage of nanometric particles was increased, although hardness of bulked parts was increased but relative density and bending strength was reduced severely. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/34932 popup.nrat_date 2025-05-12 Close