Relationship between Surface Abrasion Wear and Brightness in Glazed Porcelainized Stoneware Tiles
Figure 7
OM micrographs (top views) of bright glazed surfaces after 2,000 cycles of abrasion: (a) coated with the protective layer, P20C composition deposited in half-sphere geometry; (b) unprotected glazed surface. Magnification: 20x. Not etched.
