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Journals / Türk Doğa ve Fen Dergisi / 2017 / Cilt: 6 - Sayı: 1

Production of WCu electrical contact material via conventional powder metallurgy method: Characterization, mechanical and electrical properties

Ali ERÇETİN
Kubilay ASLANTAŞ
Pages
37–42
Publication Date
2017-10-05
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

In addition, the application of the sintering temperature above the melting temperature of copper has been effective in increasing the hardness and electrical conductivity values.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In this study, the effects of increase of sintering temperature and Cu amount on microstructure, mechanical and electrical properties of WCu electrical contact materials fabricated via conventional powder metallurgy (P/M) method were investigated.
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Key Findings & Data:The powders obtained by adding copper at different ratios into the tungsten powders were cold pressed in a mold under 60 MPa pressure.
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Conclusion & Impact:In addition, the application of the sintering temperature above the melting temperature of copper has been effective in increasing the hardness and electrical conductivity values.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Powder metallurgy · tungsten-copper · microstructure

Özet

In this study, the effects of increase of sintering temperature and Cu amount on microstructure, mechanical and electrical properties of WCu electrical contact materials fabricated via conventional powder metallurgy (P/M) method were investigated. The powders obtained by adding copper at different ratios into the tungsten powders were cold pressed in a mold under 60 MPa pressure. Samples were sintered at 1000 oC and 1100 oC using three different compositions (W-%10wtCu, W-%20wtCu- and W-%30wtCu). Microstructures of the samples were investigated by scanning electron microscopy (SEM), energy dispersive x-ray spectroscopy (EDX) and x-ray diffraction (XRD) analysis. Mechanical properties were determined by measuring hardness values and electrical properties were determined by measuring electrical resistivity. When the effect of the copper ratio on the microstructure, mechanical and electrical properties is analyzed, the reduction in the amount of copper has a positive effect on the hardness, while the electrical conductivity is adversely affected. In addition, the application of the sintering temperature above the melting temperature of copper has been effective in increasing the hardness and electrical conductivity values.

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Cite This Article

ERÇETİN, A., ASLANTAŞ, K. (2017). Production of WCu electrical contact material via conventional powder metallurgy method: Characterization, mechanical and electrical properties. Türk Doğa ve Fen Dergisi, Cilt: 6 - Sayı: 1, 37–42. https://ajindex.com/articles/705780

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