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2012 | 121 | 1 | 108-110
Article title

The Characteristics of Alumina Particle Reinforced Pure Al Matrix Composite

Content
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Languages of publication
EN
Abstracts
EN
Al_2O_3 is widely used as the reinforcing additive in the metal matrix composites. The influence of Al_2O_3 particle size on the density, hardness, microstructure, yield stress, compression strength, and elongation of the sintered Al-Al_2O_3 composites were investigated. In the present study, 10 wt% of Al_2O_3 powder with three different particle sizes (3, 12 and 48 μm) were used in the production of the samples. Powder metallurgy technique was utilized to obtain more homogeneous Al_2O_3 distribution across the composites. The samples were cold pressed at 440 MPa, and sintered at 550C for 45 min. Results showed that the relative density of the composite was initially increased with decreasing particle size. However, it was decreased with further particle size reduction. It was also pointed out that the mechanical properties of the specimens were increased with decreasing particle size. The grain size and particle distribution homogeneity was decreased with raising the particle size.
Keywords
EN
Publisher

Year
Volume
121
Issue
1
Pages
108-110
Physical description
Dates
published
2012-01
Contributors
author
  • Faculty of Mining and Materials Engineering, Amirkabir University of Technology (AUT), Hafez Ave., Tehran, Iran
author
  • Faculty of Engineering, Islamic Azad University - Semnan Branch, Damghan Rd. km 5, Semnan, Iran
References
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  • 5. G.E. Dieter, Mechanical Metallurgy, 3rd ed., McGraw-Hill, New York 1976
  • 6. A. Slipenyuk, V. Kuprin, Yu. Milman, V. Goncharuk, J. Eckert, Acta Mater. 54, 157 (2006)
  • 7. H. Sevik, S.C. Kurnaz, Mater. Design 27, 676 (2006)
  • 8. L.A. Dobrzanski, A. Wlodarczyk, M. Adamiak, J. Mater. Process. Technol. 162-163, 27 (2005)
  • 9. M. Sameezadeh, M. Emamy, H. Farhangi, Mater. Design 32, 2157 (2011)
  • 10. A. Slipenyuk, V. Kuprin, Yu. Milman, V. Goncharuk, J. Eckert, Acta Mater. 54, 157 (2006)
  • 11. R.M. German, Powder Metallurgy Science, Metal Powder Industries Federation, Princeton 1984
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv121n132kz
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