Synthesis of Cu-Cr-B4C-CNF hybrid composites

Yıl 2022, Cilt: 8 Sayı: 2, 90 - 97, 26.12.2022

Osama Ali Ehbil Kriewah Serkan Islak

https://doi.org/10.55385/kastamonujes.1123018

Öz

In this study, the microstructural properties of Cu-Cr-B4C-CNF hybrid composites produced by powder metallurgy were investigated. While microstructural properties were examined by optical, SEM-EDS and XRD analyzes, hardness test was performed to determine the mechanical properties. The microstructure results, especially the EDS-MAP analysis, showed that the reinforcement elements were relatively homogeneously dispersed in the copper matrix. Since carbon nanofiber has nano size, it was detected in SEM photographs with larger magnification. Cu, CrB2, Cr2B3 and C phases were detected in the microstructure. The hardness of the composite increased with the addition of reinforcement and reached a maximum value (72.5 HB) of 1% of CNF, and after this CNF ratio, a very small decrease in the hardness value occurred. Compared to the undoped copper sample, the hardness value of the Cu-8B4C-6Cr-1CNF hybrid composite increased by approximately 54%.

Anahtar Kelimeler

Hybrid composite, Copper, CNF, B4C, Synthesis

Kaynakça

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