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Titanium sealing glasses and seals formed therefrom

United States Patent

*** EXPIRED ***
5,693,580
December 2, 1997
View the Complete Patent at the US Patent & Trademark Office
Sandia National Laboratories - Visit the Intellectual Property Management and Licensing Website
Alkaline-earth lanthanoborate sealing-glass compositions containing CaO, La.sub.2 O.sub.3, B.sub.2 O.sub.3, TiO.sub.2 and Al.sub.2 O.sub.3 in various combinations of mole-% are provided. These sealing-glass compositions are useful for forming hermetic glass-to-metal seals with titanium and titanium alloys that have a high aqueous durability for component or device applications requiring exposure to moisture, water or body fluids. Particular applications of the titanium sealing-glass compositions include forming glass-to-metal seals for lithium batteries and implanted biomedical devices (e.g. batteries, pacemakers, defibrillators, pumps).
Brow; Richard K. (Albuquerque, NM), McCollister; Howard L. (Albuquerque, NM), Phifer; Carol C. (Albuquerque, NM), Day; Delbert E. (Rolla, MO)
Sandia Corporation (Albuquerque, NM)
08/ 713,385
September 13, 1996
This invention was made with Government support under Contract No. DE-AC04-94AL85000 awarded by the U.S. Department of Energy. The Government has certain rights in the invention.