... composites, to which different amounts of ZrO 2 were added. Fig. 2 Microstructure SEM images of 316L SS composites with different amounts of ZrO 2 added: ( a ) 316L, ( b ) 1% ZrO 2 , ( c ) 2% ZrO 2 , and ( d ) 3% ZrO 2 Microstructure SEM images of 316L SS composites with different amounts of ZrO2...

... pressure, ( e ) effect of wt% addition of ZrO 2 and sliding speed, and ( f ) effect of contact pressure and sliding speed The response surface plots for COF as affected by independent variables: (a) effect of wt% addition of TiO2 and ZrO2, (b) effect of wt% addition of TiO2 and contact pressure, (c...

...) graphite, and (c) ZrO2 Scanning electron microscopy images of the powders show that the A356 alloy powder (Fig. 1( a ) ) is roughly spherical and has different morphology in the form of teardrops. However, the graphite powder that is mechanically milled for 1-hour by high-energy ball milling has...