Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
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Microwave dielectric ceramic with low dielectric constant and high quality factor and preparation method thereof
The invention discloses a microwave dielectric ceramic with a low dielectric constant and a high quality factor and a preparation method thereof.The chemical composition expression of the microwave dielectric ceramic is MgAlF5, the relative dielectric constant of the microwave dielectric ceramic is 6.5-7.7, and the quality factor of the microwave dielectric ceramic is 31400-40500 GHz. The microwave dielectric ceramic has the very excellent combination of the low dielectric constant and the high quality factor, and the microwave dielectric ceramic can be used as a microwave dielectric ceramic with the low dielectric constant and the high quality factor. The method has a very wide application prospect in passive devices of microwave communication systems in the future. According to the preparation method of the microwave dielectric ceramic with the low dielectric constant and the high quality factor, a solid-phase reaction preparation process is adopted, the process is simple, repeatability is good, and a synthesized phase is stable and single. Besides, according to the preparation method of the microwave dielectric ceramic with the low dielectric constant and the high quality factor, perfluorides serve as reaction raw materials, the sintering temperature is not higher than 1200 DEG C, and compared with other oxide ceramics such as MgAl2O4 (1450 DEG C), the sintering temperature is reduced by 275 DEG C or above, and the cost of large-scale industrial production can be greatly saved.
本发明公开了一种低介电常数高品质因数的微波介质陶瓷及其制备方法，本发明的微波介质陶瓷的化学组成表达式为MgAlF5，其相对介电常数为6.5～7.7，品质因数为31400～40500GHz，本发明的微波介质陶瓷具有十分优异的低介电常数与高品质因数性能组合，在未来微波通讯系统无源器件中有非常广泛的应用前景。本发明的一种低介电常数高品质因数的微波介质陶瓷的制备方法采用固相反应法制备工艺，工艺简单，重复性好且合成的物相稳定单一。此外，本发明的一种低介电常数高品质因数的微波介质陶瓷的制备方法以全氟化物为反应原料，烧结温度不高于1200℃，相比于其他氧化物陶瓷，如MgAl2O4（1450℃）等烧结温度降低了275℃以上，能大大节约大规模工业生产的成本。
Microwave dielectric ceramic with low dielectric constant and high quality factor and preparation method thereof
The invention discloses a microwave dielectric ceramic with a low dielectric constant and a high quality factor and a preparation method thereof.The chemical composition expression of the microwave dielectric ceramic is MgAlF5, the relative dielectric constant of the microwave dielectric ceramic is 6.5-7.7, and the quality factor of the microwave dielectric ceramic is 31400-40500 GHz. The microwave dielectric ceramic has the very excellent combination of the low dielectric constant and the high quality factor, and the microwave dielectric ceramic can be used as a microwave dielectric ceramic with the low dielectric constant and the high quality factor. The method has a very wide application prospect in passive devices of microwave communication systems in the future. According to the preparation method of the microwave dielectric ceramic with the low dielectric constant and the high quality factor, a solid-phase reaction preparation process is adopted, the process is simple, repeatability is good, and a synthesized phase is stable and single. Besides, according to the preparation method of the microwave dielectric ceramic with the low dielectric constant and the high quality factor, perfluorides serve as reaction raw materials, the sintering temperature is not higher than 1200 DEG C, and compared with other oxide ceramics such as MgAl2O4 (1450 DEG C), the sintering temperature is reduced by 275 DEG C or above, and the cost of large-scale industrial production can be greatly saved.
本发明公开了一种低介电常数高品质因数的微波介质陶瓷及其制备方法，本发明的微波介质陶瓷的化学组成表达式为MgAlF5，其相对介电常数为6.5～7.7，品质因数为31400～40500GHz，本发明的微波介质陶瓷具有十分优异的低介电常数与高品质因数性能组合，在未来微波通讯系统无源器件中有非常广泛的应用前景。本发明的一种低介电常数高品质因数的微波介质陶瓷的制备方法采用固相反应法制备工艺，工艺简单，重复性好且合成的物相稳定单一。此外，本发明的一种低介电常数高品质因数的微波介质陶瓷的制备方法以全氟化物为反应原料，烧结温度不高于1200℃，相比于其他氧化物陶瓷，如MgAl2O4（1450℃）等烧结温度降低了275℃以上，能大大节约大规模工业生产的成本。
Microwave dielectric ceramic with low dielectric constant and high quality factor and preparation method thereof
一种低介电常数高品质因数的微波介质陶瓷及其制备方法
LIU BING (Autor:in) / ZHOU MENGFEI (Autor:in) / SHA KE (Autor:in) / LIN FENGLI (Autor:in) / SONG KAIXIN (Autor:in)
11.03.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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