Graphene is regarded as a promising solid-state lubricant; however. its frictional properties under varying conditions remains limited. In this study. atomic force microscopy (AFM) is used to measure the frictional behavior of graphene supported on four different substrates. https://safeersappliancers.shop/product-category/amica-awc600bl-46-bottle-60cm-freestanding-wine-cooler-black/