Fabrication of a Novel Silver-Based Electrical Contact Composites and Assessment of Its Mechanical and Electrical Properties

• Autorzy: Kumar Praveen S. , Senthil S. M. , Parameshwaran Rathinasamy , Rathanasamy Rajasekar

Identyfikatory

DOI

10.24425/amm.2021.136428

• Języki publikacji: EN

Abstrakty

EN

The electrical contactors play a crucial role in closing the circuit in many power distribution components like overhead lines, underground cables, circuit breakers, transformers, and control systems. The failure in these components mainly occurs due to the break-down of contactors due to the continuous opening and closing action of contacts. Silver (Ag)-based oxide contact materials are widely used in practice, among which silver tin oxide (AgSnO₂) is most common. An attempt is made in increasing the performance of AgSnO₂, by adding Tungsten Oxide (WO₃) in various weight proportions, thus finding the optimal proportion of AgSnO₂WO₃ to have increased mechanical and electrical performances. All the composite samples are fabricated in-house using powder metallurgy process. The assessment of physical and electrical properties namely, density, hardness, porosity, and electrical conductivity, showed that 90%Ag-8.5%SnO₂-1.5%WO₃ composite yielded superior results. With help of morphological tests, wear characteristics are also investigated, which showed that 90%Ag-8.5%SnO₂-1.5%WO₂ composite has a wear coefficient of 0.000227 and a coefficient of friction of 0.174 at an optimized load of 10 N and sliding velocity of 0.5 mm/s.

Słowa kluczowe

EN

silver tin oxide; electrical contact; composites; tungsten oxide; conductivity

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2021
• Tom: Vol. 66, iss. 4
• Strony: 1087--1094
• Opis fizyczny: Bibliogr. 34 poz., fot., rys., tab., wykr.

Twórcy

autor

Kumar Praveen S.

• Kongu Engineering College, Erode, Tamilnadu, India

• https://orcid.org/0000-0003-0784-7346

autor

Senthil S. M.

• Kongu Engineering College, Erode, Tamilnadu, India

• https://orcid.org/0000-0001-7166-9607

autor

Parameshwaran Rathinasamy

• Kongu Engineering College, Erode, Tamilnadu, India

• https://orcid.org/0000-0003-1108-6236

autor

Rathanasamy Rajasekar

• Kongu Engineering College, Erode, Tamilnadu, India

• https://orcid.org/0000-0002-6539-1466

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021).