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Low-temperature sintered high-dielectric-constant microwave dielectric ceramic as well as preparation method and application thereof
The invention discloses low-temperature sintered high-dielectric-constant microwave dielectric ceramic as well as a preparation method and application thereof. The microwave dielectric ceramic comprises a main material and an auxiliary material, the composition expression of the main material is aBaCO3-bTiO2-cZnO-dCuO-eLi2CO3-fZrO2, the chemical formula of the auxiliary material is xZnO-yH3BO3, 29% < = a < = 31%, 49% < = b < = 51%, 5% < = c < = 7%, 1% < = d < = 3%, 4% < = e < = 6%, and 4% < = f < = 6%. 65% < = x < = 68%, 32% < = y < = 35%; the mass ratio of the main material to the auxiliary material is 1: (0.14-0.16). The microwave dielectric ceramic can maintain the following microwave properties under the condition of low-temperature sintering: the dielectric constant Dk is 35 +/-2, the quality factor is more than 20000 GHz, the dielectric loss Df is less than or equal to 0.03%, and the temperature coefficient of resonance frequency tau f is within +/-10 ppm/DEG C.
本发明公开了一种低温烧结的高介电常数微波介质陶瓷及其制备方法和应用；该微波介质陶瓷包括组成表达式为aBaCO3‑bTiO2‑cZnO‑dCuO‑eLi2CO3‑fZrO2的主料以及化学式为xZnO‑yH3BO3的辅料，其中，29％≤a≤31％，49％≤b≤51％，5％≤c≤7％，1％≤d≤3％，4％≤e≤6％，4％≤f≤6％；65％≤x≤68％，32％≤y≤35％；主料和辅料的质量比例为1：(0.14～0.16)。该微波介质陶瓷可以在低温烧结的条件下保持以下的微波性能：介电常数Dk＝35±2，品质因数20000GHz以上，介质损耗Df≤0.03％，谐振频率温度系数τf为±10ppm/℃以内。
Low-temperature sintered high-dielectric-constant microwave dielectric ceramic as well as preparation method and application thereof
The invention discloses low-temperature sintered high-dielectric-constant microwave dielectric ceramic as well as a preparation method and application thereof. The microwave dielectric ceramic comprises a main material and an auxiliary material, the composition expression of the main material is aBaCO3-bTiO2-cZnO-dCuO-eLi2CO3-fZrO2, the chemical formula of the auxiliary material is xZnO-yH3BO3, 29% < = a < = 31%, 49% < = b < = 51%, 5% < = c < = 7%, 1% < = d < = 3%, 4% < = e < = 6%, and 4% < = f < = 6%. 65% < = x < = 68%, 32% < = y < = 35%; the mass ratio of the main material to the auxiliary material is 1: (0.14-0.16). The microwave dielectric ceramic can maintain the following microwave properties under the condition of low-temperature sintering: the dielectric constant Dk is 35 +/-2, the quality factor is more than 20000 GHz, the dielectric loss Df is less than or equal to 0.03%, and the temperature coefficient of resonance frequency tau f is within +/-10 ppm/DEG C.
本发明公开了一种低温烧结的高介电常数微波介质陶瓷及其制备方法和应用；该微波介质陶瓷包括组成表达式为aBaCO3‑bTiO2‑cZnO‑dCuO‑eLi2CO3‑fZrO2的主料以及化学式为xZnO‑yH3BO3的辅料，其中，29％≤a≤31％，49％≤b≤51％，5％≤c≤7％，1％≤d≤3％，4％≤e≤6％，4％≤f≤6％；65％≤x≤68％，32％≤y≤35％；主料和辅料的质量比例为1：(0.14～0.16)。该微波介质陶瓷可以在低温烧结的条件下保持以下的微波性能：介电常数Dk＝35±2，品质因数20000GHz以上，介质损耗Df≤0.03％，谐振频率温度系数τf为±10ppm/℃以内。
Low-temperature sintered high-dielectric-constant microwave dielectric ceramic as well as preparation method and application thereof
低温烧结的高介电常数微波介质陶瓷及其制备方法和应用
YOSHIGISHI (author) / KIM JIN YONG (author) / ZHANG BIN (author)
2024-02-09
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2024
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| European Patent Office | 2024
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| European Patent Office | 2021