Characterization of Functionally Graded Bronze Matrix Ceramic Reinforced Composite Materials

Year 2019, Volume: 23 Issue: 6, 1137 - 1143, 01.12.2019

Serkan Islak , Aimen Mohamed Abushraıda

https://doi.org/10.16984/saufenbilder.574251

Cited By: 2

Abstract

In this study,
ceramic reinforced bronze matrix functionally graded materials (FGMs) were
produced by using powder metallurgy method. B₄C, TiC, Mo₂C
and SiC were selected as ceramic reinforcements. The samples with compositions bronze
+ 10% SiC, bronze + 10% B₄C, bronze + 10% Mo₂C, and bronze
+ 10% TiC were sintered at 750 °C for 90 minutes. Investigations were carried
out to assess the mechanical properties and microstructures of specimens. For
this purpose, optical microscope, scanning electron microscope (SEM-EDS), and
X-ray diffraction (XRD) analysis were applied for microstructure investigations.
Sample hardness testing was carried out with the help of Vickers hardness
testing device. Composite layers of ceramic particles were homogeneously
distributed. Little pore formation was observed. While the upper and lower
composite layers of the FGMs produced were hard, the middle layer was found to
be ductile. The highest hardness value was reached in the B₄C
reinforced FGM.

Keywords

FGM, bronze, ceramic reinforcements

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