Bismuth trioxide glasses

JSGT 1957 V41 T347-T349

It has been found that bismuth trioxide itself does not form a glass. However, glasses of high bismuth trioxide content can be made by melting the oxide with silica, boric oxide or phosphorus pentoxide. Glasses have also been made in the systems bismuth trioxide-vanadium pentoxide and bismuth trioxide-tellurium dioxide. It is pointed out that bismuth oxide behaves in a very similar manner to lead oxide in glass-forming systems.

M. S. R. Heynes & H. Rawson