Effect of lead and molybdenum disulfide additives on wear resistance and physical properties of copper–graphite composite

• Autorzy: Hosseini Maryam , Mashtizadeh Amir Reza , Tabrizi Arvin Taghizadeh , Aghajani Hossein

Identyfikatory

DOI

10.2478/msp-2024-0046

• Języki publikacji: EN

Abstrakty

EN

This study investigated the impact of adding lead (Pb) and molybdenum disulfide (MoS2) to copper–graphite (Cu–Gr) composites used in electric motors. The composites were produced by mechanical alloying (MA). The mixture was then poured and compressed with varying amounts of Pb and MoS₂. Differential thermal analysis was used to determine the sintering temperature of the samples. Further tests were conducted to assess the samples’ wear resistance, density, hardness, and porosity. The effects of the additives of these factors were examined, and the output current of the samples was measured. Scanning electron microscopy was also used to analyze the morphology of the Gr plates coated with Cu, Pb, and MoS₂. The results indicated that adding Pb and MoS₂ increased the density of the sintered samples and their Vickers hardness. Meanwhile, porosity decreased with increased concentrations of Pb and MoS₂. Additionally, MoS₂ was found to improve wear resistance via a pin-on-disk test.

Słowa kluczowe

EN

molybdenum disulfide; lead; copper–graphite composite; mechanical alloying; wear resistance

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2024
• Tom: Vol. 42, No. 4
• Strony: 148--161
• Opis fizyczny: Bibliogr. 27 poz., rys., tab.

Twórcy

autor

Hosseini Maryam

• Materials Engineering Department, University of Tabriz Tabriz, Iran

autor

Mashtizadeh Amir Reza

• Materials Engineering Department, University of Tabriz Tabriz, Iran

autor

Tabrizi Arvin Taghizadeh

• School of Metallurgy and Materials Engineering, Iran University of Science and Technology Tehran, Iran

autor

Aghajani Hossein

• School of Metallurgy and Materials Engineering, Iran University of Science and Technology Tehran, Iran

Bibliografia

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