An Evaluation of Cu-B₄C Composites Manufactured by Powder Metallurgy

• Authors: T. Yener , I. Altinsoy , S. Yener , G. Celebi Efe , I. Ozbek , C. Bindal
• Languages of publication: EN

Abstracts

EN

In this study, the influences of B₄C ratios on some mechanical and physical properties such as relative density, microhardness and electrical properties of cold pressed Cu-B₄C composites were investigated. Curve fitting is applied for the estimation of electrical conductivity. Commercial copper powders with 40 μm particle size were reinforced with B₄C, with particle size of 40 μm, at ratios of 1, 2, 3 wt.%, for improving mechanical properties of copper used as electrical conductor. Cu-B₄C composites have been fabricated by powder sintering process at a temperature of 900°C for 2 h. The presence of Cu and B₄C, which are dominant components in the sintered composites, were confirmed by X-ray diffraction analysis technique and SEM-EDS. Scanning electron microscope (SEM-EDS) has shown that B₄C particles are distributed homogenously in the copper matrix. The relative densities of Cu and Cu-B₄C composites, sintered at 900°C, ranged from 95.7 to 91.6%. Microhardness of composites ranged from 84.5 to 94.6 HB. It was observed that cold pressed Cu-1 wt.% B₄C composites revealed promising physical properties. Results of electrical conductivity measurement of Cu-B₄C composite material are compared to the results of the model and the overall accuracy level above 96% is obtained.

Keywords

EN

81.05.Ni; 81.20.Ev; 72.80.Tm

Discipline

• 81.05.Ni: Dispersion-, fiber-, and platelet-reinforced metal-based composites
• 81.20.Ev: Powder processing: powder metallurgy, compaction, sintering, mechanical alloying, and granulation
• 72.80.Tm: Composite materials

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2015
• Volume: 127
• Issue: 4
• Pages: 1045-1047

Dates

published

2015-04

Contributors

author

T. Yener

• Sakarya University, Engineering Faculty, Department of Metallurgy and Materials Engineering, Esentepe Campus, Serdivan, Sakarya

author

I. Altinsoy

• Sakarya University, Engineering Faculty, Department of Metallurgy and Materials Engineering, Esentepe Campus, Serdivan, Sakarya

author

S. Yener

• Sakarya University, Engineering Faculty, Department of Electrical and Electronic Engineering, Esentepe Campus, Serdivan, Sakarya

author

G. Celebi Efe

• Sakarya University, Engineering Faculty, Department of Metallurgy and Materials Engineering, Esentepe Campus, Serdivan, Sakarya

author

I. Ozbek

• Sakarya University, Engineering Faculty, Department of Metallurgy and Materials Engineering, Esentepe Campus, Serdivan, Sakarya

author

C. Bindal

• Sakarya University, Engineering Faculty, Department of Metallurgy and Materials Engineering, Esentepe Campus, Serdivan, Sakarya

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Identifiers

DOI

10.12693/APhysPolA.127.1045