Glass Ceramics as Composite Fillers
G. MÜLLER 1
1 Jenaer Glaswerk Schott & Gen., D-65 Mainz, Germany, and Schott Optical Glass Inc., Duryea, Pennsylvania
Glass ceramics are known that are transparent and colorless and have very low thermal expansions. Experiments are described to modify such glass ceramics by introduction of oxides of high atomic weight. Glass ceramics containing relatively large amounts of La203 are promising as X-ray opaque filler materials with nearly zero thermal expansion.
Submitted on October 16, 1973
