THERMALLY STABLE NANO-SIZED ALPHA ALUMINA (CORUNDUM) MATERIALS AND METHOD OF PREPARING THEREOF

摘要

A hydrothermal process for making Alpha Alumina ((a-AI2O3) crystalline nano-sized powders in the form of at least one of nano-sheets and nano-fibers, the process includes making the Alpha Alumina with an aspect ratio of diameter to thickness ratio of at least two, and with at least one dimension of diameter or thickness being less than 100 nm. A composition in accordance with the process. A porous ceramic that includes the composition.