Sintered ion-conductive composite electrolyte of beta-alumina and beta'- alumina

摘要

A composite beta, mainly beta"-alumina article is described which comprises a first layer of beta-alumina, a second layer of mainly beta"- alumina adhering securely to the first layer, and the first layer consisting of 1 to 15 percent thickness of the total thickness of the article. A method is also described for producing such composite articles.