POLYCRYSTALLINE ALUMINA ARTICLES AND METHODS OF MANUFACTURE

摘要

Polycrystalline Alumina Articles and Methods of Manufacture Polycrystalline alumina and methods for manufacturing polycrystalline alumina exhibiting improved transmission in the infrared region. In one embodiment, the percent real in-line transmittance is within about 2 % of sapphire at selected wavelengths. In one or more embodiments, polycrystalline articles exhibit improved mechanical properties such as thermal shock resistance and hardness, which may find use in armor applications.