Tesaurus d'Art i Arquitectura Getty Institute 0000-00-00 2024-01-24 15:40:44 en aluminum oxide300387542Al2O3 A white, hard, insoluble powder that naturally occurs in some feldspars, alumina trihydrate, corundum, gibbsite, bauxite, ruby, and sapphire. It is used for abrasives, refractories, electrical insulation, high temperature crucibles, dental restoration, filler for paints, glass, and ceramics. When added to glaze mixtures, aluminum oxide increases viscosity during firing, prevents devitrification during cooling and adds durability to the final surface. aluminum oxide (traducció pendent) òxid d'alumini 2026-03-30 20:32:37