Compositions: ceramic – Ceramic compositions – Glass compositions – compositions containing glass other than...
Patent
1987-11-17
1989-06-13
Dixon, Jr., William R.
Compositions: ceramic
Ceramic compositions
Glass compositions, compositions containing glass other than...
501 15, 501 16, 501 17, 501 18, 501 64, 501 72, 428432, C03C 800
Patent
active
048393134
ABSTRACT:
Glaze compositions for ceramic substrates such as an alumina substrate are described. In a first embodiment, the glaze composition consists of 55 to 75 mol % SiO.sub.2, 1 to 15 mol % Al.sub.2 O.sub.3, 3 to 20 mol % CaO, 1 to 13 mol % BaO and 0.1 to 5 mol % Y.sub.2 O.sub.3. In a second embodiment, the glaze composition consists essentially of 55 to 75 mol % SiO.sub.2, 1 to 15 mol % Al.sub.2 O.sub.3, 3 to 20 mol % CaO, 1 to 13 mol % BaO, 1 to 5 mol % Y.sub.2 O.sub.3, 25 mol % or less SrO, 7 mol % or less B.sub.2 O.sub.3, 2 mol % or less ZnO and 2 mol % or less MgO. In a third embodiment, the glaze composition consists essentially of 58 to 75 mol % SiO.sub.2, 2 to 15 mol % Al.sub.2 O.sub.3, 0.5 to 5 mol % La.sub.2 O.sub.3, 2 to 20 mol % CaO and 1 to 13 mol % BaO. In a fourth embodiment, the glaze composition consists essentially of 58 to 75 mol % SiO.sub.2, 2 to 15 mol % Al.sub.2 O.sub.3, 0.5 to 5 mol % La.sub.2 O.sub.3, 2 to 20 mol % CaO, 1 to 13 mol % BaO, 25 mol % or less SrO, 2 mol % or less MgO, 7 mol % or less B.sub.2 O.sub.3, and 5 mol % or less Y.sub.2 O.sub.3. These glaze compositions are suitable for use in surface glazing of ceramic substrates for thermal heads, printer heads, etc.
REFERENCES:
patent: 4256796 (1981-03-01), Hang et al.
patent: 4282035 (1981-08-01), Nigrin
patent: 4429007 (1984-01-01), Bich et al.
patent: 4624934 (1986-11-01), Kokubu et al.
patent: 4634634 (1987-01-01), Kondo et al.
Ceramic Glazes, Parmelee, C; Industrial Publications, Inc. Chicago, IL. (1951) p. 33.
Chemical Approach to Glass; volf., M. Elseuief, NY (1984) pp. 190, 391.
Kondo Kazuo
Kurachi Tatsunori
Okuyama Masahiko
Dixon Jr. William R.
Griffs Andrew
NGK Spark Plug Co. Ltd.
LandOfFree
Glaze compositions for ceramic substrates does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Glaze compositions for ceramic substrates, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Glaze compositions for ceramic substrates will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1277530