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Microwave ceramic dielectric material and preparation method thereof
The invention provides a microwave ceramic dielectric material and a preparation method thereof. The microwave ceramic dielectric material comprises a main crystal phase, a modifying additive and a sintering cosolvent, and a structural formula of the main crystal phase is xCaTiO3-(1-x)LaAlO3, wherein x is greater than or equal to 0.68 and less than or equal to 0.72; according to molar content in microwave dielectric ceramic, the modifying additive comprises 0-1.0% of Nb2O5, 1-5% of Sm2O3, 0.1-0.5% of CeO2 and 0-1% of Co3O4, and the sintering cosolvent comprises 0-2% of B2O3, 0.5-4% of SiO2, 0-1% of Bi2O3, 0-0.5% of MnO and 0-0.5% of V2O5. The microwave ceramic dielectric material can be sintered at 1150 DEG C-1200 DEG C, cost can be saved, and high Qf value of 43000GHz-48000GHz can still be maintained.
Microwave ceramic dielectric material and preparation method thereof
The invention provides a microwave ceramic dielectric material and a preparation method thereof. The microwave ceramic dielectric material comprises a main crystal phase, a modifying additive and a sintering cosolvent, and a structural formula of the main crystal phase is xCaTiO3-(1-x)LaAlO3, wherein x is greater than or equal to 0.68 and less than or equal to 0.72; according to molar content in microwave dielectric ceramic, the modifying additive comprises 0-1.0% of Nb2O5, 1-5% of Sm2O3, 0.1-0.5% of CeO2 and 0-1% of Co3O4, and the sintering cosolvent comprises 0-2% of B2O3, 0.5-4% of SiO2, 0-1% of Bi2O3, 0-0.5% of MnO and 0-0.5% of V2O5. The microwave ceramic dielectric material can be sintered at 1150 DEG C-1200 DEG C, cost can be saved, and high Qf value of 43000GHz-48000GHz can still be maintained.
Microwave ceramic dielectric material and preparation method thereof
SONG YONGSHENG (Autor:in) / WANG XIAOGUO (Autor:in) / ZHOU YONGXIANG (Autor:in) / WU SHANGWEI (Autor:in)
30.12.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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