Abstract
The aim of this paper is to investigate the effect of sintering temperature and time on the properties of Fe–Al2O3 composite (5 wt% Al2O3; 95 wt% Fe) prepared by powder metallurgy process. X-ray diffraction, microstructure, density, hardness and compressive strength of prepared samples have been investigated. XRD studies show the presence of Fe and Al2O3 along with iron aluminate phase. Iron aluminate is formed as a result of reactive sintering between iron and alumina particles. Microstructural examination of the specimen showed a dense structure with nanosize dispersion of the reinforcement of ceramic phase. Density as well as hardness of specimens depend on the formation of iron aluminate phase, which in turn depends on sintering temperature and time.
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Acknowledgements
The authors are thankful to Prof. G V S Sastry and late Prof. N Prasad, Department of Metallurgical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi, for their valuable support.
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GUPTA, P., KUMAR, D., PARKASH, O. et al. Structural and mechanical behaviour of 5% Al2O3-reinforced Fe metal matrix composites (MMCs) produced by powder metallurgy (P/M) route. Bull Mater Sci 36, 859–868 (2013). https://doi.org/10.1007/s12034-013-0545-1
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DOI: https://doi.org/10.1007/s12034-013-0545-1