A liquid polymer is formed in a low temperature polymerization reaction involving organo-metallic sodium and aluminum compounds, at least one of which is partially hydrolyzed. The polymer is hydrolyzed, dried to form an amorphous sodium Beta-alumina precursor, and then heated, at between 1,200.degree....http://www.google.es/patents/US4208475?utm_source=gb-gplus-sharePatente US4208475 - Method of forming sodium beta-Al.sub.2 O.sub.3 solid materials
Method of forming sodium beta-Al.sub.2 O.sub.3 solid materials
