Glaze compositions for ceramic substrates
Abstract
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 2 , 1 to 15 mol % Al 2 O 3 , 3 to 20 mol % CaO, 1 to 13 mol % BaO and 0.1 to 5 mol % Y 2 O 3 . In a second embodiment, the glaze composition consists essentially of 55 to 75 mol % SiO 2 , 1 to 15 mol % Al 2 O 3 , 3 to 20 mol % CaO, 1 to 13 mol % BaO, 1 to 5 mol % Y 2 O 3 , 25 mol % or less SrO, 7 mol % or less B 2 O 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 2 , 2 to 15 mol % Al 2 O 3 , 0.5 to 5 mol % La 2 O 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 2 , 2 to 15 mol % Al 2 O 3 , 0.5 to 5 mol % La 2 O 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 2 O 3 , and 5 mol % or less Y 2 O 3 . These glaze compositions are suitable for use in surface glazing of ceramic substrates for thermal heads, printer heads, etc.
Inventors
- 👤 Kazuo Kondo
- 👤 Tatsunori Kurachi
- 👤 Masahiko Okuyama
Bibliographic Details
Claims Analysis
Total Claims: 8References Cited (Backward Citations)
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