Mechanical and Thermal Evaluation of Nanocomposite Coatings for Wheelchair Components

This chapter explores the development and evaluation of
nanocomposite coatings applied to wheelchair components to
enhance their mechanical strength, wear resistance, and thermal
stability. Nanocomposites containing aluminum oxide (Al2 O3 ),
silicon carbide (SiC), and titanium dioxide (TiO2 ) nanoparticles were
synthesized using an epoxy matrix through the sol–gel technique.
Experimental tests including tensile, hardness, and thermal
conductivity analyses were conducted to determine performance
improvements. Quantitative data reveal that the incorporation of 3
wt.% Al2 O3 nanoparticles improved surface hardness by 28%,
tensile strength by 22%, and reduced surface wear by 35% compared with uncoated substrates. Furthermore, thermal conductivity
increased by 18%, indicating superior heat dissipation capacity
essential for user comfort and durability.