Tag Archives: powder metallurgy

1289-1294 A. Yonetken and A. Erol
Production and characterization of Al-BN composite materials using by powder metallurgy
Abstract |
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Production and characterization of Al-BN composite materials using by powder metallurgy

A. Yonetken¹* and A. Erol²

¹University of Afyon Kocatepe, Faculty of Engineering, Department of Electrical Engineering, ANS campus, TR03200 Afyonkarahisar, Turkey
²University of Afyon Kocatepe, Faculty of Technology, Department of Metallurgy and Materials Engineering, ANS campus, TR03200 Afyonkarahisar, Turkey
*Correspondence: yonetken@aku.edu.tr

Abstract:

Aluminum matrix composites containing 3, 6, 9, 12 and 15% BN has been fabricated by conventional microwave sintering at 550 °C temperature. Compounds formation between Al and BN powders is observed after sintering under Ar shroud. XRD, SEM (Scanning Electron Microscope), mechanical testing and measurements were employed to characterize the properties of Al + BN composite. Experimental results suggest that the best properties as hardness 42, 62 HV were obtained for Al+12% BN composite.

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1130–1137 A. Yonetken and A. Erol
Production and characterization of Ni-Co (WC) composites materials
Abstract |

Production and characterization of Ni-Co (WC) composites materials

A. Yonetken¹* and A. Erol²

¹University of Afyon Kocatepe, Faculty of Engineering, Department of Electrical Engineering, ANS Campus, TR 03200 Afyonkarahisar, Turkey
²University of Afyon Kocatepe, Faculty of Technology, Department of Metallurgy and Materials Engineering, ANS Campus, TR 03200 Afyonkarahisar, Turkey
*Correspondence: yonetken@aku.edu.tr

Abstract:

Ceramic-Metal Composite such as NiWC, CoWC are among advanced technology materials that have outstanding mechanical and physical properties for high temperature applications. Especially low density and high hardness properties stand out in such ceramic-metal composite. The microstructure, mechanical properties of %60Ni, %20Co and %20WC powders have been sintered by using tube furnace at 1,000–1,100–1,200–1,300–1,400 °C temperature. Mecahnical proporties and metalograhphic analysis were investigated after sintering. NiCo phases observed after metallographic analaysis. XRD, SEM (Scanning Electron Microscope)results showed us best microhardness of composites 174.16 HV, 8,563 g cm-3 density were obtained at 1,400 °C sintering tempareture.

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