Effect of Zircon and Aluminum Dross on Sinterability and Properties Al-Matrix Composites | ||||
| Sohag Engineering Journal | ||||
| Article 2, Volume 1, Issue 2, September 2021, Page 13-24 PDF (3.81 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/sej.2021.72590.1001 | ||||
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| Authors | ||||
M F Zawrah  1; Ibrahim Hassab Allahb2; Mousab Mohamed3; Moataz H. Ata4
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| 1National Research Centre, 12622 Dokki, Cairo, Egypt | ||||
| 2Mechanical Engineering Department, Faculty of Engineering, Assiut University, Assiut, Egypt | ||||
| 3Production Department, Industrial Technical Institute, Sohag, Egypt | ||||
| 4Production Department, Faculty of Industrial Education, Sohag University, Sohag, Egypt | ||||
| Abstract | ||||
| In the present study, Al-matrix composites reinforced by zircon and aluminum dross were prepared by powder metallurgy after sintering at 500oC. The effect of different percentages of zircon i.e. 2, 4, 6, 8 and 10 wt. %, and aluminum dross i.e. 5, 10, 15, and 20 wt. %, on the physical properties (apparent porosity and bulk density), microstructure and microhardness were investigated in details. The apparent porosity and bulk density were determined by water displacement method according to Archimedes rule, while the microstructure was investigated by scanning electron microscope. The Microhardness was measured by Vickers tester. The results showed that the physical properties and microstructure were improved after increasing the amount of added zircon or aluminum dross. Moreover, the hardness of sintered composites was increased with increasing both zircon and aluminum dross. The hardness of zircon containing composites was lower than the hardness of aluminum dross containing composites. The maximum hardness values were obtained for Al/10% zircon (472 MPa) and Al/20% aluminum dross (532 MPa). | ||||
| Keywords | ||||
| Al-base composite; Zircon; Aluminium dross; Sintering; Hardness | ||||
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