Tribological assessments ended up carried out utilizing a ball-on-disc T-eleven tester. The balls ended up product of metal, While the discs ended up fabricated from steel, aluminium oxide, zirconium oxide, polyamide and poly(methyl methacrylate). The description from the unit along with the strategies is provided within the literature (Szczerek and https://davida603pwz3.wiki-racconti.com/user