Glass-ceramic composition for hermetic seals
Abstract
The invention relates to a glass-ceramic composition having a high fracture strength adaptable for hermetically sealing to chromium bearing iron or nickel base alloys at temperatures of between about 950.degree. C to about 1100.degree. C to form a hermetically sealed insulator body, comprising from about 55 to about 65 weight percent SiO.sub.2, from about 0 to about 5 weight percent Al.sub.2 O.sub.3, from about 6 to about 11 weight % Li.sub.2 O, from about 25 to about 32 weight percent BaO, from about 0.5 to about 1.0 weight percent CoO and from about 1.5 to about 3.5 weight percent P.sub.2 O.sub.5.
- Inventors:
-
- (Albuquerque, NM)
- Issue Date:
- Research Org.:
- Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
- OSTI Identifier:
- 863269
- Patent Number(s):
- 4135936
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C03 - GLASS C03C - CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS
- DOE Contract Number:
- AT(29-1)-789
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- glass-ceramic; composition; hermetic; seals; relates; fracture; strength; adaptable; hermetically; sealing; chromium; bearing; iron; nickel; base; alloys; temperatures; 950; degree; 1100; form; sealed; insulator; comprising; 55; 65; weight; percent; sio; 11; 25; 32; bao; coo; nickel base; hermetically sealing; base alloy; base alloys; ceramic composition; hermetically sealed; weight percent; hermetic seal; fracture strength; glass-ceramic composition; sealed insulator; hermetic seals; hermetically seal; /501/
Citation Formats
Ballard, Jr., Clifford P. Glass-ceramic composition for hermetic seals. United States: N. p., 1979.
Web.
Ballard, Jr., Clifford P. Glass-ceramic composition for hermetic seals. United States.
Ballard, Jr., Clifford P. Mon .
"Glass-ceramic composition for hermetic seals". United States. https://www.osti.gov/servlets/purl/863269.
@article{osti_863269,
title = {Glass-ceramic composition for hermetic seals},
author = {Ballard, Jr., Clifford P.},
abstractNote = {The invention relates to a glass-ceramic composition having a high fracture strength adaptable for hermetically sealing to chromium bearing iron or nickel base alloys at temperatures of between about 950.degree. C to about 1100.degree. C to form a hermetically sealed insulator body, comprising from about 55 to about 65 weight percent SiO.sub.2, from about 0 to about 5 weight percent Al.sub.2 O.sub.3, from about 6 to about 11 weight % Li.sub.2 O, from about 25 to about 32 weight percent BaO, from about 0.5 to about 1.0 weight percent CoO and from about 1.5 to about 3.5 weight percent P.sub.2 O.sub.5.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 1979},
month = {Mon Jan 01 00:00:00 EST 1979}
}
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