Indian Journal of Science and Technology
Year: 2015, Volume: 8, Issue: Supplementary 9, Pages: 1-7
A. K. Senapati1 , P. C. Mishra1*, B. C. Routray1 and R. I. Ganguly2
1 School of Mechanial Engineering, KIIT University, Bhubaneswar - 751024, Odisha, India; [email protected]
2 Department of Mechanical Engineering, GIET, Gunupur - 765022, Odisha, India
Background/Objectives: To fabricate Aluminium Matrix Composites (AMCs) using liquid stir casting technique, in which waste fly ash obtained from thermal power plant is to be applied as reinforced material. Method/Statistical Analysis: In one type, 14.3% (by volume) of the reinforcement material was directly employed as received from the power plant and in the other type, 13.2% (by volume) fly ash was thermally treated and reinforced with the Al-Si alloy matrix material. Results/Findings: The Energy dispersive X-ray analysis (EDAX) analysis and X-ray studies have revealed nearly complete conversion of SiO2 to SiC by thermal reduction in a plasma reactor. Particle sizes obtained were in the range of 2µm-40µm with different shape and aspect ratios. Mechanical properties like hardness, compression strength and tensile properties such as UTS, YS are more for AMC prepared with thermally treated fly ash in comparison to AMC prepared with untreated fly ash and Al-Si alloy. Conclusion/Application: A novel in-situ ternary ceramic mixture composite of Al2 O3 -SiC-C is fabricated by carbothermal reduction of fly ash in a plasma reactor.
Keywords: Aluminium Matrix Composite, Mechanical Property, Microstructure, Treated Fly Ash
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