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Low-dielectric microwave dielectric ceramic material and temperature-frequency characteristic regulation and control method thereof
The invention belongs to the technical field of microwave dielectric ceramics, and discloses a low-dielectric microwave dielectric ceramic material and a temperature-frequency characteristic regulation and control method thereof. The chemical general formula of a main crystalline phase of the low-dielectric microwave dielectric ceramic material is CaO-SnO2-xSiO2-yGeO2, x is larger than or equal to0 and smaller than or equal to 1.0, y is larger than or equal to 0 and smaller than or equal to 1.0, and the main crystalline phase is a maleite phase; the microwave dielectric ceramic material is alow-dielectric microwave dielectric ceramic material, and the relative dielectric constant epsilon r is 10.37-11.7. By regulating the molar ratio 1:1:x:y of Ca:Sn:Si:Ge, the microwave dielectric ceramic material can be obtained correspondingly, l with a relative dielectric constant as low as 10.37-11.7 and the self-adjustable resonant frequency temperature coefficient tau f is acquired under the condition of avoiding the use of Ti element, thereby effectively widening the selection range of the low-dielectric-constant microwave dielectric ceramic material. Moreover, the resonance frequency temperature coefficient tau f of the microwave dielectric ceramic material can be regulated and controlled by regulating and controlling the ratio of SiO2 to GeO2 and utilizing ion substitution.
本发明属于微波介质陶瓷技术领域，公开了一种低介微波介质陶瓷材料及其温频特性调控方法，其中低介微波介质陶瓷材料，其主晶相的化学通式为CaO‑SnO2‑xSiO2‑yGeO2，其中，0≤x≤1.0，0≤y≤1.0，且主晶相为马来石相，该微波介质陶瓷材料为低介微波介质陶瓷材料，相对介电常数εr＝10.37～11.7。本发明通过调控Ca:Sn:Si:Ge的摩尔比1:1:x:y，相应得到的微波介质陶瓷材料，能够在避免Ti元素使用的情况下，获得相对介电常数低至10.37～11.7且谐振频率温度系数τf可自调节的低介微波介质陶瓷材料，有效拓宽了低介电常数微波介质陶瓷材料的选择范围。并且，通过调控SiO2、GeO2的比例，利用离子取代，能够调控微波介质陶瓷材料的谐振频率温度系数τf。
Low-dielectric microwave dielectric ceramic material and temperature-frequency characteristic regulation and control method thereof
The invention belongs to the technical field of microwave dielectric ceramics, and discloses a low-dielectric microwave dielectric ceramic material and a temperature-frequency characteristic regulation and control method thereof. The chemical general formula of a main crystalline phase of the low-dielectric microwave dielectric ceramic material is CaO-SnO2-xSiO2-yGeO2, x is larger than or equal to0 and smaller than or equal to 1.0, y is larger than or equal to 0 and smaller than or equal to 1.0, and the main crystalline phase is a maleite phase; the microwave dielectric ceramic material is alow-dielectric microwave dielectric ceramic material, and the relative dielectric constant epsilon r is 10.37-11.7. By regulating the molar ratio 1:1:x:y of Ca:Sn:Si:Ge, the microwave dielectric ceramic material can be obtained correspondingly, l with a relative dielectric constant as low as 10.37-11.7 and the self-adjustable resonant frequency temperature coefficient tau f is acquired under the condition of avoiding the use of Ti element, thereby effectively widening the selection range of the low-dielectric-constant microwave dielectric ceramic material. Moreover, the resonance frequency temperature coefficient tau f of the microwave dielectric ceramic material can be regulated and controlled by regulating and controlling the ratio of SiO2 to GeO2 and utilizing ion substitution.
本发明属于微波介质陶瓷技术领域，公开了一种低介微波介质陶瓷材料及其温频特性调控方法，其中低介微波介质陶瓷材料，其主晶相的化学通式为CaO‑SnO2‑xSiO2‑yGeO2，其中，0≤x≤1.0，0≤y≤1.0，且主晶相为马来石相，该微波介质陶瓷材料为低介微波介质陶瓷材料，相对介电常数εr＝10.37～11.7。本发明通过调控Ca:Sn:Si:Ge的摩尔比1:1:x:y，相应得到的微波介质陶瓷材料，能够在避免Ti元素使用的情况下，获得相对介电常数低至10.37～11.7且谐振频率温度系数τf可自调节的低介微波介质陶瓷材料，有效拓宽了低介电常数微波介质陶瓷材料的选择范围。并且，通过调控SiO2、GeO2的比例，利用离子取代，能够调控微波介质陶瓷材料的谐振频率温度系数τf。
Low-dielectric microwave dielectric ceramic material and temperature-frequency characteristic regulation and control method thereof
一种低介微波介质陶瓷材料及其温频特性调控方法
LEI WEN (Autor:in) / DU KANG (Autor:in) / LYU WENZHONG (Autor:in) / WANG XIAOCHUAN (Autor:in) / WANG XIAOHONG (Autor:in) / FAN GUIFEN (Autor:in) / FU MING (Autor:in)
02.02.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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