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Preparation method for LiZnNbO4 low temperature co-fired LTCC microwave dielectric ceramic material
The invention discloses a preparation method for an LiZnNbO4 low temperature co-fired LTCC (low temperature co-fired ceramics) microwave dielectric ceramic material. The method comprises: conducting wet ball milling on Li2CO3, ZnO and Nb2O5 original powder with purity of greater than or equal to 98% respectively for 4h, and taking deionized water as the ball milling medium; then drying Li2CO3 and Nb2O5 powder in a 70-100DEG C oven for more than 5h; presintering ZnO powder in 500-650DEG C air atmosphere for 2-4h, and performing drying in the 70-100DEG C oven for over 5h; weighing ingredients according to the composition of LiZnNbO4, then conducting wet ball milling mixing for 4, using ethanol as the ball milling medium, performing drying, then carrying out presintering in 950DEG C air atmosphere for 4h; and finally adding a binder, then conducting granulation and compression moulding, and performing sintering at 900-1100DEG C for 4h, thus obtaining the LiZnNbO4 low temperature cofired LTCC microwave dielectric ceramic material. The method provided by the invention has a simple process, and the prepared LiZnNbO4 microwave dielectric ceramics has low sintering temperature (lower than or equal to 1100DEG C, and low to 900DEG C) and excellent microwave performance.
Preparation method for LiZnNbO4 low temperature co-fired LTCC microwave dielectric ceramic material
The invention discloses a preparation method for an LiZnNbO4 low temperature co-fired LTCC (low temperature co-fired ceramics) microwave dielectric ceramic material. The method comprises: conducting wet ball milling on Li2CO3, ZnO and Nb2O5 original powder with purity of greater than or equal to 98% respectively for 4h, and taking deionized water as the ball milling medium; then drying Li2CO3 and Nb2O5 powder in a 70-100DEG C oven for more than 5h; presintering ZnO powder in 500-650DEG C air atmosphere for 2-4h, and performing drying in the 70-100DEG C oven for over 5h; weighing ingredients according to the composition of LiZnNbO4, then conducting wet ball milling mixing for 4, using ethanol as the ball milling medium, performing drying, then carrying out presintering in 950DEG C air atmosphere for 4h; and finally adding a binder, then conducting granulation and compression moulding, and performing sintering at 900-1100DEG C for 4h, thus obtaining the LiZnNbO4 low temperature cofired LTCC microwave dielectric ceramic material. The method provided by the invention has a simple process, and the prepared LiZnNbO4 microwave dielectric ceramics has low sintering temperature (lower than or equal to 1100DEG C, and low to 900DEG C) and excellent microwave performance.
Preparation method for LiZnNbO4 low temperature co-fired LTCC microwave dielectric ceramic material
ZHOU HUANFU (author) / GONG JIANZHANG (author) / HAO SHUZHAO (author) / CHEN XIULI (author)
2015-08-19
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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