Sapphire is a high-purity and high-density, single-crystalline form of aluminum oxide that may contain chromia, titania, yttria, or other dopants. Sapphire is usually transparent or translucent.
Alumina-Zirconia Zirconia-toughened alumina (ZTA ... Precursor / Sol-gel Stock or standard products are available in the form of a liquid, solid or gaseous chemical precursor, or sol-gel chemical ...