Preparation and Tribological Behavior of Cu–based Electrical Contact Composite Containing NbSe_2 in Vacuum
Source abstract
Abstract
Cu-graphite self-lubrication composite containing nano NbSe2(0–9wt%) was fabricated by powder metallurgy technology. Friction property of the sample was investigated using micro-tribometer and ultra-low-temperature tribometer under atmosphere and vacuum conditions. The microstructure, phase and wear scar were also investigated by XRD and SEM. The results showed that tribological property was significantly improved after nano NbSe2 being added to the Cu-graphite self-lubrication composite. The composite with nano NbSe2(5.5wt%) had smaller friction coefficient(μ=0.185) under vacuum dry friction conditions and higher carrying capacity than those of the composite without NbSe2. It was found that the wear could be attributed to adhesive wear together with contact fatigue wear.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Electrical Contact Performance and Analysis · Mechanical stress and fatigue analysis · Tribology and Wear Analysis
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