Wear performance and mechanical properties of MWCNT/HDPE nanocomposites for gearing applications

MWCNT/HDPE nanocomposite spur gears prepared in concentrations of 0, 0.5, 1, 1.5, 2, and 2.5% by weight using centrifugal ball milling dispersion method followed CNC milling. SEM examination revealed a sound the MWCNT HDPE matrix until 2 wt.%. Nanocomposites exhibited higher decomposition temperature thermal stability than neat HDPE. Yield strength increased linearly nanocomposites up to wt.%, then it saturated. Nanofillers' addition steadily young’s modulus fraction 1.5 %, surging rapidly between In contrast, its rate increase declined 2.5 The Taber abrasion test showed reduction wear loss nanocomposites. nanocomposites' toughness 0 (neat HDPE) wt.% but at due transition from ductile brittle nature. At torque 5 N-m, performance consistently with concentration nanofillers. 10 displayed decline brittleness. Satisfactory developed interphase fervently contributed load transfer mechanical properties. Nanofillers improved resistance, hardness, lowered plastic deformation. gear damage mechanism changed bending tooth cracking deflection gears. emerged as potential gearing materials enhanced tensile properties, uniform dispersion, stability, performance, reasonable toughness.