“…Many investigators applied the microwave sintering on the commercially available 8YSZ powder pellets and studied the mechanical properties by using the micro indentation technique, but the nano indentation studies of microwave sintered 8 mol% yttria stabilized zirconia bulk sample have not been reported by the previous researchers. 3YSZ -TZP ceramics was one of the promising materials for tribological applications, because of its high wear resistance, bending strength, fracture toughness and mechanical strength and low friction coefficient than cubic zirconia (Ran et al, 2007). Many investigators found the tribological characteristics of 3 mol% of yttria stabilized zirconia (3YSZ) sintered samples with and without metal oxide additives of CuO, MnO 2 , MgO, B 2 O 3 and reduced the coefficient of friction (Bas et al, 2004).…”