Patent ID: 6066584
Filing Date: 2000-05-23
Classification: A61F,A61L,C04B

Abstract:
A method, comprising the steps of:a) dispersing .alpha.-Al.sub.2 O.sub.3 powder having a mean particle size d.sub.50 of .ltoreq.0.30 .mu.m and a chemical purity of .gtoreq.99.9% .alpha.-Al.sub.2 O.sub.3 in an aqueous solution to create a mixture, said mixture effected through the application of at least two different dispersing methods;b) treating said mixture so as to create a shaped unsintered body having a relative density of p.gtoreq.55%;c) heating said unsintered body; andd) sintering said unsintered body so as to create a sintered material.