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Preparation technology of microwave composite dielectric substrate based on barium titanate-type ceramic powder
The invention discloses a preparation technology of a microwave composite dielectric substrate based on barium titanate-type ceramic powders. The preparation technology includes following steps: (a) mixing the titanate-type ceramic powders, such as BaTi4O9, BaTi5O11 and Ba2Ti9O20, with silicon dioxide micro-powder, aluminum oxide micro-powder and calcium sulfate micro-powder uniformly; (b) mixing the mixed powder with a methylbenzene solution of a 1,3-butadiene and isoprene co-polymer system, and fully stirring the materials; (c) treating the uniformly mixed materials in a rotary evaporator to remove the solvent, methylbenzene, wherein rotation rate is 80-120 r/min, the temperature of rotary evaporation water bath is 45-55 DEG C and the time of rotary evaporation is 0.5-3.0 h; and (d) moulding the treated materials through compression moulding through a press moulding machine or through a calendaring method, performing a hot-press sintering process to enable the polymer system to be subjected to crosslinking polymerization and finally shaping the material to prepare the microwave composite dielectric substrate being 6.5-13.5 in dielectric constant.
Preparation technology of microwave composite dielectric substrate based on barium titanate-type ceramic powder
The invention discloses a preparation technology of a microwave composite dielectric substrate based on barium titanate-type ceramic powders. The preparation technology includes following steps: (a) mixing the titanate-type ceramic powders, such as BaTi4O9, BaTi5O11 and Ba2Ti9O20, with silicon dioxide micro-powder, aluminum oxide micro-powder and calcium sulfate micro-powder uniformly; (b) mixing the mixed powder with a methylbenzene solution of a 1,3-butadiene and isoprene co-polymer system, and fully stirring the materials; (c) treating the uniformly mixed materials in a rotary evaporator to remove the solvent, methylbenzene, wherein rotation rate is 80-120 r/min, the temperature of rotary evaporation water bath is 45-55 DEG C and the time of rotary evaporation is 0.5-3.0 h; and (d) moulding the treated materials through compression moulding through a press moulding machine or through a calendaring method, performing a hot-press sintering process to enable the polymer system to be subjected to crosslinking polymerization and finally shaping the material to prepare the microwave composite dielectric substrate being 6.5-13.5 in dielectric constant.
Preparation technology of microwave composite dielectric substrate based on barium titanate-type ceramic powder
PANG ZIBO (author) / XU YONGKUAN (author) / JI XIUFENG (author) / WANG LIJING (author) / ZHANG LIXIN (author) / SONG YONGYAO (author) / CHENG HONGJUAN (author)
2015-12-09
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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