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Low-loss dielectric adjustable mediation microwave dielectric ceramic material and preparation method thereof
The invention particularly relates to a low-loss dielectric-adjustable mediation microwave dielectric ceramic material and a preparation method thereof. The chemical composition of the ceramic material is aCa(ZrxTi1-x)O3 plus (1-a)La1 plus yAlO3 plus z wt percent of Al2O3, wherein a is greater than or equal to 0.30 and less than or equal to 0.35, x is greater than or equal to 0 and less than or equal to 0.1, y is greater than or equal to 0 and less than or equal to 0.01 and z is greater than or equal to 0 and less than or equal to 1. The ceramic material is low-cost CaTiO3-LaAlO3 system microwave dielectric ceramic capable of replacing CaTiO3-NdAlO3 system ceramic, greatly reduces the production cost, is a low-cost microwave dielectric ceramic material having low loss and dielectric-adjustable characteristic and being applicable to the microwave devices such as a dielectric resonator, a filter and a duplexer, a dielectric constant is adjustable, Q multiplied by f is high, and a temperature coefficient of resonance frequency tao f is excellent. The invention also provides the preparation method of the ceramic material with the advantages of low material price and simple and practicable process route.
Low-loss dielectric adjustable mediation microwave dielectric ceramic material and preparation method thereof
The invention particularly relates to a low-loss dielectric-adjustable mediation microwave dielectric ceramic material and a preparation method thereof. The chemical composition of the ceramic material is aCa(ZrxTi1-x)O3 plus (1-a)La1 plus yAlO3 plus z wt percent of Al2O3, wherein a is greater than or equal to 0.30 and less than or equal to 0.35, x is greater than or equal to 0 and less than or equal to 0.1, y is greater than or equal to 0 and less than or equal to 0.01 and z is greater than or equal to 0 and less than or equal to 1. The ceramic material is low-cost CaTiO3-LaAlO3 system microwave dielectric ceramic capable of replacing CaTiO3-NdAlO3 system ceramic, greatly reduces the production cost, is a low-cost microwave dielectric ceramic material having low loss and dielectric-adjustable characteristic and being applicable to the microwave devices such as a dielectric resonator, a filter and a duplexer, a dielectric constant is adjustable, Q multiplied by f is high, and a temperature coefficient of resonance frequency tao f is excellent. The invention also provides the preparation method of the ceramic material with the advantages of low material price and simple and practicable process route.
Low-loss dielectric adjustable mediation microwave dielectric ceramic material and preparation method thereof
GAO YONG (Autor:in) / LI LING (Autor:in) / WANG ZHONGHAI (Autor:in) / ZHAO XIAOBO (Autor:in) / ZHANG PINGPING (Autor:in) / WANG YINGYING (Autor:in) / CHE SONGWEI (Autor:in) / SONG TAO (Autor:in)
03.02.2016
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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