|Monthly Tech-Tip |
Top: A thin porcelain tile with etched design. Bottom: The same tile with a back light. By Stephanie Osser.
Made using porcelain fired to cone 11+. This is a splendid demonstration of translucency. Without a back-light it is just a white slab. But the varying thickness in the porcelain determine the amount of light that passes at any given spot, thus producing the design.
A ceramic whose priorities are translucency, whiteness, fired strength and resistance to thermal shock failure.
A highly sought-after property in porcelain, fired close enough to melting to take on the glass-like property of passing light. Translucency implies tendency to warp during firing.