Pore-filling slurry for high-temperature co-fired ceramic
A high-temperature co-fired ceramic and slurry technology, applied in the field of hole-filling slurry, can solve the problems of slurry diffusion, reduced hole-filling quality, and increased slurry viscosity, so as to improve the preparation process, improve conduction performance, and improve The effect of stability
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Embodiment 1
[0061] Organic medium formula: 40 parts of terpineol, 50 parts of butyl carbitol acetate, 5 parts of dibutyl phthalate, and 5 parts of ethyl cellulose;
[0062] Mix terpineol, butyl carbitol acetate, and dibutyl phthalate in an oil bath at 90°C in proportion, then add a certain proportion of ethyl cellulose, continue heating and stirring for 6 hours, and cool to room temperature get an organic medium;
[0063] Add 87 parts of tungsten powder (0.2-0.8 μm 5%, 1-2 μm 80%, 2-5 μm 15%), 6 parts of inorganic phase substances (alumina 96%, magnesium oxide 2.5%, calcium carbonate 1%, Silicon oxide 0.5%) and 7 parts of organic medium, ball milled at 45 Hz frequency in a planetary ball mill for 24 hours, then rolled 5 times with a three-roller mill at a distance of 15 μm, and dispersed to a fineness below 12 microns. Use the above slurry to fill 1736 small holes of φ0.2mm on the flaky ceramic material belt with a length of 110mm X110mm and a thickness of 0.254mm, and fill it once under...
Embodiment 2
[0065] Organic medium formula: 50 parts of terpineol, 40 parts of butyl carbitol acetate, 4 parts of dibutyl phthalate, 6 parts of ethyl cellulose;
[0066] Mix terpineol, butyl carbitol acetate, and dibutyl phthalate in an oil bath at 90°C in proportion, then add a certain proportion of ethyl cellulose, continue heating and stirring for 6 hours, and cool to room temperature get an organic medium;
[0067] 85 parts of tungsten powder (0.2-0.8 μm 10%, 1-2 μm 85%, 2-5 μm 5%) 6 parts of inorganic phase substances (alumina 94%, magnesium oxide 3.5%, calcium carbonate 1%, Silicon oxide 1.5%) and 9 parts of organic medium, ball milled under 40 Hz frequency of planetary ball mill for 24 hours, then rolled 4 times with a three-roller mill with a distance of 20 μm, and dispersed to a fineness below 12 microns. Use the above slurry to fill the small holes of φ0.2mm on the ceramic belt with a thickness of 0.254mm, and fill it once under a pressure of 120N, and the small holes are even a...
Embodiment 3
[0069] Organic medium formula: 42 parts of butyl carbitol, 42 parts of butyl carbitol acetate, 8 parts of butyl benzyl phthalate, 8 parts of polyvinyl butyral;
[0070] Mix butyl carbitol, butyl carbitol acetate, and butyl benzyl phthalate in an oil bath at 90°C in proportion, then add a certain proportion of polyvinyl butyral, and continue heating and stirring for 6 hours , cooled to room temperature to obtain an organic medium;
[0071] Add 81 parts of tungsten powder (0.2-0.8 μm 10%, 1-2 μm 70%, 2-5 μm 20%) 8 parts of inorganic phase substances (alumina 96%, silicon oxide 4%) and 11 parts of organic medium in proportion to the planetary ball mill, After 24 hours of ball milling in a planetary ball mill at a frequency of 40 Hz, the slurry is discharged, rolled 6 times with a three-roll mill at a distance of 30 μm, and dispersed until the fineness is below 12 μm. Use the above slurry to fill the small holes of φ0.2mm on the ceramic belt with a thickness of 0.254mm, and fill ...
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