Extremely high purity (<99.9%) alumina grades can be fabricated using a choice of bonding and forming techniques (blending, casting, pressing, etc.) to yield a high wear- and corrosion-resistant ceramic suitable for many applications. These properties can be moderated and altered using a broad range of additives and additional components, which are likewise available with a choice of bonding solutions (cement, oxide, sintered, etc.).
For example: adding manganese oxide (MnO2) is beneficial for hardness; silicon dioxide (SiO2) can improve thermal shock resistance; while low levels of zirconium oxide (ZrO2) can increase both lifetime at high temperatures and overall wear resistance. Additional components include carbon (C), chromium oxide (Cr2O3), magnesia (MgO), and more.
Saint-Gobain, with a deep understanding of the chemical behaviors of technical ceramics, manufactures a wide and versatile range of alumina products that routinely meet customer requirements. The wide-ranging chemical availability of aluminum oxide makes it an extremely versatile fine ceramic suitable for demanding conditions and applications. As a result, alumina can be tailored for high performance in extremely demanding conditions and applications. Examples include:
Saint-Gobain offers alumina-based fine ceramics and refractories under a series of product brands that meet the requirements of discerning customers.