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Low-dielectric ultralow-loss temperature-stable LTCC (Low Temperature Co-Fired Ceramic) material and preparation method thereof
The invention discloses a low-dielectric ultralow-loss temperature-stable LTCC (Low Temperature Co-Fired Ceramic) material and a preparation method thereof, the chemical general formula of the LTCC material is Li < 3 + x > Mg < 2-x > NbO6-xFx, x is more than or equal to 0.02 and less than or equal to 0.1, and the crystal phase is pure-phase Li3Mg2NbO6. The ceramic material is prepared by the following steps: proportioning Li2CO3, MgO, LiF and Nb2O5 according to the stoichiometric ratio of Li < 3 + x > Mg < 2-x > NbO < 6-x > Fx (0.02 < = x < = 0.1), carrying out first ball-milling mixing, presintering at the temperature of 700-800 DEG C for 3-5 hours, carrying out second ball-milling mixing, granulating, molding, and sintering at the temperature of 820-900 DEG C for 3-5 hours. According to the invention, the Li3Mg2NbO6 crystal structure is finely adjusted by adopting anions/cations at the same time, the sintering temperature is reduced, and the lattice energy and order degree are improved, so that the quality factor and temperature stability of the ceramic material are improved.
本发明公开了一种低介电超低损耗温度稳定LTCC材料及其制备方法，LTCC材料化学通式为Li3+xMg2‑xNbO6‑xFx，0.02≤x≤0.1，晶相为纯相Li3Mg2NbO6。该陶瓷材料由Li2CO3、MgO、LiF、Nb2O5按Li3+xMg2‑xNbO6‑xFx化学计量比进行配料，0.02≤x≤0.1，经第一次球磨混合，在700°～800℃温度下预烧3～5小时，再经第二次球磨混合后进行造粒、成型，在820°～900℃温度下烧结3～5小时制成。本发明同时采用阴/阳离子对Li3Mg2NbO6晶体结构进行微调，降低了烧结温度，提高了晶格能及有序度，从而提高了陶瓷材料的品质因数及温度稳定性。
Low-dielectric ultralow-loss temperature-stable LTCC (Low Temperature Co-Fired Ceramic) material and preparation method thereof
The invention discloses a low-dielectric ultralow-loss temperature-stable LTCC (Low Temperature Co-Fired Ceramic) material and a preparation method thereof, the chemical general formula of the LTCC material is Li < 3 + x > Mg < 2-x > NbO6-xFx, x is more than or equal to 0.02 and less than or equal to 0.1, and the crystal phase is pure-phase Li3Mg2NbO6. The ceramic material is prepared by the following steps: proportioning Li2CO3, MgO, LiF and Nb2O5 according to the stoichiometric ratio of Li < 3 + x > Mg < 2-x > NbO < 6-x > Fx (0.02 < = x < = 0.1), carrying out first ball-milling mixing, presintering at the temperature of 700-800 DEG C for 3-5 hours, carrying out second ball-milling mixing, granulating, molding, and sintering at the temperature of 820-900 DEG C for 3-5 hours. According to the invention, the Li3Mg2NbO6 crystal structure is finely adjusted by adopting anions/cations at the same time, the sintering temperature is reduced, and the lattice energy and order degree are improved, so that the quality factor and temperature stability of the ceramic material are improved.
本发明公开了一种低介电超低损耗温度稳定LTCC材料及其制备方法，LTCC材料化学通式为Li3+xMg2‑xNbO6‑xFx，0.02≤x≤0.1，晶相为纯相Li3Mg2NbO6。该陶瓷材料由Li2CO3、MgO、LiF、Nb2O5按Li3+xMg2‑xNbO6‑xFx化学计量比进行配料，0.02≤x≤0.1，经第一次球磨混合，在700°～800℃温度下预烧3～5小时，再经第二次球磨混合后进行造粒、成型，在820°～900℃温度下烧结3～5小时制成。本发明同时采用阴/阳离子对Li3Mg2NbO6晶体结构进行微调，降低了烧结温度，提高了晶格能及有序度，从而提高了陶瓷材料的品质因数及温度稳定性。
Low-dielectric ultralow-loss temperature-stable LTCC (Low Temperature Co-Fired Ceramic) material and preparation method thereof
一种低介电超低损耗温度稳定LTCC材料及其制备方法
WANG GANG (author) / HU YUNFENG (author) / LI SHICHANG (author) / TONG JIACONG (author) / REN XINGANG (author) / YANG LIXIA (author) / HUANG ZHIXIANG (author) / WU XIANLIANG (author)
2024-03-19
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2024
| European Patent Office | 2023
| European Patent Office | 2023
| European Patent Office | 2024
| European Patent Office | 2024