Electrical Resistivity, Tribological Behaviour of Multiwalled Carbon Nanotubes and Nanoboron Carbide Particles Reinforced Copper Hybrid Composites for Pantograph Application

Figure 14

(a) Photograph of the collected wear debris particles, (b–e) worn surface analysis of composite specimens at 20 N loads: (a) Cu–2MWCNT, (b) Cu–2MWCNT–0.5B₄C, (c) Cu–2MWCNT–1.0B₄C, (d) Cu–2MWCNT–1.5B₄C, and (e) Cu–2MWCNT–2.0B₄C.

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