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Ultra-low temperature vanadium-based microwave medium ceramic material stable in sintering temperature and preparation method thereof
The invention discloses an ultra-low temperature vanadium-based microwave medium ceramic material stable in sintering temperature and a preparation method thereof. The phase of the ceramic material comprises 82.4-94.2 wt% of a BaV2O6 phase in an orthorhombic structure and the balance of a CaV2O6 phase in a monoclinic structure. The ceramic material overcomes the defect that the temperature coefficient of the resonant frequency of BaV2O6 ceramic is relatively high, has the good microwave dielectric property (the dielectric constant epsilon r is 8.3-10.9, the temperature coefficient of resonance frequency tau f is -10-+9 ppm/DEG C, and the quality factor Q*f is 10000-17000 GHz) and the super-low sintering temperature (550 DEG C), and can be sintered together with an Al electrode; the prepared ceramic material is abundant in raw materials, low in cost and favorable for industrial production, and can be widely applied to manufacture of microwave devices, such as low-temperature co-fired ceramic systems, multi-layered dielectric resonators, wave filters and microwave base plates.
Ultra-low temperature vanadium-based microwave medium ceramic material stable in sintering temperature and preparation method thereof
The invention discloses an ultra-low temperature vanadium-based microwave medium ceramic material stable in sintering temperature and a preparation method thereof. The phase of the ceramic material comprises 82.4-94.2 wt% of a BaV2O6 phase in an orthorhombic structure and the balance of a CaV2O6 phase in a monoclinic structure. The ceramic material overcomes the defect that the temperature coefficient of the resonant frequency of BaV2O6 ceramic is relatively high, has the good microwave dielectric property (the dielectric constant epsilon r is 8.3-10.9, the temperature coefficient of resonance frequency tau f is -10-+9 ppm/DEG C, and the quality factor Q*f is 10000-17000 GHz) and the super-low sintering temperature (550 DEG C), and can be sintered together with an Al electrode; the prepared ceramic material is abundant in raw materials, low in cost and favorable for industrial production, and can be widely applied to manufacture of microwave devices, such as low-temperature co-fired ceramic systems, multi-layered dielectric resonators, wave filters and microwave base plates.
Ultra-low temperature vanadium-based microwave medium ceramic material stable in sintering temperature and preparation method thereof
YAO GUOGUANG (author) / LIAO YANNA (author) / XU KAI (author) / QIANG SHUAI (author) / YANG JIEYIN (author) / HU XUSHENG (author) / LIU SHUAIBO (author)
2015-06-17
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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