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Abdalla, G., Aboraia, M., Wasly, H., Doheim, M., Mahmoud, A. (2012). CHARACTERIZATION OF AL– AL2O3 NANOCOMPOSITE POWDERS SYNTHESIZED BY HIGH-ENERGY BALL MILLING. JES. Journal of Engineering Sciences, 40(No 5), 1475-1486. doi: 10.21608/jesaun.2012.114523
G. A. Abdalla; M. S. Aboraia; H. S. Wasly; M.A. Doheim; A.E. Mahmoud. "CHARACTERIZATION OF AL– AL2O3 NANOCOMPOSITE POWDERS SYNTHESIZED BY HIGH-ENERGY BALL MILLING". JES. Journal of Engineering Sciences, 40, No 5, 2012, 1475-1486. doi: 10.21608/jesaun.2012.114523
Abdalla, G., Aboraia, M., Wasly, H., Doheim, M., Mahmoud, A. (2012). 'CHARACTERIZATION OF AL– AL2O3 NANOCOMPOSITE POWDERS SYNTHESIZED BY HIGH-ENERGY BALL MILLING', JES. Journal of Engineering Sciences, 40(No 5), pp. 1475-1486. doi: 10.21608/jesaun.2012.114523
Abdalla, G., Aboraia, M., Wasly, H., Doheim, M., Mahmoud, A. CHARACTERIZATION OF AL– AL2O3 NANOCOMPOSITE POWDERS SYNTHESIZED BY HIGH-ENERGY BALL MILLING. JES. Journal of Engineering Sciences, 2012; 40(No 5): 1475-1486. doi: 10.21608/jesaun.2012.114523

CHARACTERIZATION OF AL– AL2O3 NANOCOMPOSITE POWDERS SYNTHESIZED BY HIGH-ENERGY BALL MILLING

Article 14, Volume 40, No 5, September and October 2012, Page 1475-1486  XML PDF (1.31 MB)
Document Type: Research Paper
DOI: 10.21608/jesaun.2012.114523
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Authors
G. A. Abdalla1; M. S. Aboraia1; H. S. Wasly2; M.A. Doheim1; A.E. Mahmoud1
1Faculty of Engineering, Assiut University, Assiut
2Faculty of Engineering, Al-Azhar University, Qena
Abstract
Metal matrix composite powders of Al- Al2O3 with weight fraction of 20 % Al2O3 could be synthesized by high-energy milling of the mixed powders. Three different experiments were carried out at the same operating conditions, but with three different rotation speeds; 200, 300, and 400rpm. A homogenous distribution of the Al2O3 reinforcement in the Al matrix was obtained after milling the mixed powders for periods of 60, 45, and 30 h. The homogenous distribution of Al2O3 in the Al matrix was achieved by characterizing these nanocomposite powders by X-ray diffraction (XRD) and scanning electron microscopy (SEM) techniques. X-ray patterns were analyzed by using the Williamson–Hall treatment to determine the crystallite size and the lattice strain.
Keywords
Al–Al2O3 metal matrix composites; High-energy milling; Nanostructure
Main Subjects
Mining and Metallurgical Engineering.
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