Compositions: ceramic – Ceramic compositions – Glass compositions – compositions containing glass other than...
Patent
1994-11-03
1995-10-03
Jones, Deborah
Compositions: ceramic
Ceramic compositions
Glass compositions, compositions containing glass other than...
501 32, 501128, 174137R, 174138J, C03C 814, H01B 1700
Patent
active
054552095
ABSTRACT:
This invention relates to a lead-free ceramic insulator, such as that utilized in headlamp switching assemblies. The composition utilized to make the lead-free ceramic insulator includes low melting glasses which form low-viscosity liquids at low temperatures. The glasses generally contain alkali and/or alkaline earth oxides and boron oxide. Aluminum oxide may be added to compensate for the alkali and alkaline earth containing glasses which are sensitive to corrosion by water. The compositions have a low sintering temperature.
REFERENCES:
patent: 2072460 (1933-03-01), Malinovsky
patent: 3097101 (1963-07-01), Lester
patent: 4037188 (1977-07-01), Frey et al.
patent: 4636617 (1987-01-01), Peterson et al.
Brooks Cary W.
General Motors Corporation
Jones Deborah
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