Moshe (not his real name, lest the wrong people read this) looks like any other religious Jewish man in Jerusalem â dark hair, dark beard, wire-rimmed glasses, poring over a Talmudic tome in a yeshiva.No one would suspect that he is the great-great-grandson of a former Shah of Iran.oshe (not his real name, lest the wrong people read this) looks like any other religious Jewish man in Jerusalem â dark hair, dark beard, wire-rimmed glasses, poring over a Talmudic tome in a yeshiva.
This article is about aluminium(III) oxide, Al 2 O 3. For other uses, see Aluminium oxide (compounds) . Aluminium oxide is a chemical compound of aluminium and oxygen with the chemical formula Al 2 O 3. It is the most commonly occurring of several aluminium oxides, and specifically identified as aluminium(III) oxide.
Alpha phase alumina is the strongest and stiffest of the oxide ceramics. Its high hardness, excellent dielectric properties, refractoriness and good thermal properties make it the material of choice for a wide range of applications. High purity alumina is usable in both oxidizing and reducing atmospheres to 1925Â°C.ts high hardness, excellent dielectric properties, refractoriness and good thermal properties make it the material of choice for a wide range of applications. High purity alumina is usable in both oxidizing and reducing atmospheres to 1925Â°C.