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Lithium niobate titanate-based low-temperature co-fired microwave dielectric ceramic and preparation method thereof
The invention relates to the technical field of ceramic materials. The invention discloses a lithium niobate titanate-based low-temperature co-fired microwave dielectric ceramic and a preparation method thereof. The chemical general formula of the lithium niobate titanate-based low-temperature co-fired microwave dielectric ceramic is Li0.46+xNb0.14-x(Ti0.9 (Bi0.25Nb0.25Mn0.5)0.1)0.7O1.99-2x, and xis more than or equal to 0 and less than or equal to 0.07. The sintering temperature of the lithium niobate titanate-based low-temperature co-fired microwave dielectric ceramic prepared by the methodis 950DEG C, the relative dielectric constant is 49.3-69.8, the quality factor of the resonant frequency is 18190-21089 GHz, the temperature coefficient of the resonant frequency is + 19 to + 146 ppm/DEG C, and the performance is very excellent. The preparation method used by the application is simple, has low cost and is suitable for large-batch actual production.
本申请涉及陶瓷材料技术领域，公开了一种铌钛酸锂基低温共烧微波介电陶瓷及其制备方法，所述铌钛酸锂基低温共烧微波介电陶瓷的化学通式为LiNb(Ti(BiNbMn))O，0≤x≤0.07。本申请所制备的铌钛酸锂基低温共烧微波介电陶瓷的烧结温度为950℃，相对介电常数49.3～69.8，谐振频率品质因数18190～21089GHz，谐振频率温度系数+19～+146ppm/℃，性能十分优异。本申请所使用的制备方法简单，成本较低，适合大批量的实际生产。
Lithium niobate titanate-based low-temperature co-fired microwave dielectric ceramic and preparation method thereof
The invention relates to the technical field of ceramic materials. The invention discloses a lithium niobate titanate-based low-temperature co-fired microwave dielectric ceramic and a preparation method thereof. The chemical general formula of the lithium niobate titanate-based low-temperature co-fired microwave dielectric ceramic is Li0.46+xNb0.14-x(Ti0.9 (Bi0.25Nb0.25Mn0.5)0.1)0.7O1.99-2x, and xis more than or equal to 0 and less than or equal to 0.07. The sintering temperature of the lithium niobate titanate-based low-temperature co-fired microwave dielectric ceramic prepared by the methodis 950DEG C, the relative dielectric constant is 49.3-69.8, the quality factor of the resonant frequency is 18190-21089 GHz, the temperature coefficient of the resonant frequency is + 19 to + 146 ppm/DEG C, and the performance is very excellent. The preparation method used by the application is simple, has low cost and is suitable for large-batch actual production.
本申请涉及陶瓷材料技术领域，公开了一种铌钛酸锂基低温共烧微波介电陶瓷及其制备方法，所述铌钛酸锂基低温共烧微波介电陶瓷的化学通式为LiNb(Ti(BiNbMn))O，0≤x≤0.07。本申请所制备的铌钛酸锂基低温共烧微波介电陶瓷的烧结温度为950℃，相对介电常数49.3～69.8，谐振频率品质因数18190～21089GHz，谐振频率温度系数+19～+146ppm/℃，性能十分优异。本申请所使用的制备方法简单，成本较低，适合大批量的实际生产。
Lithium niobate titanate-based low-temperature co-fired microwave dielectric ceramic and preparation method thereof
铌钛酸锂基低温共烧微波介电陶瓷及其制备方法
ZHENG LIANG (Autor:in)
24.07.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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