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Strontium cerate medium dielectric constant microwave dielectric ceramic material and preparation method thereof
The invention relates to the field of material science, and aims to provide a strontium cerate medium dielectric constant microwave dielectric ceramic material and a preparation method thereof. The chemical expression of the microwave dielectric ceramic material is (100-x) wt% Sr2CeO4+x wt% M+y wt% N, wherein M is one or a mixture of more of TiO2, CaTiO3 or Sr2TiO4, N is one or a mixture of more of Li2CO3, Bi2O3 or ZnO, y is the mass fraction of N accounting for the total mass of Sr2CeO4 and M, x is larger than or equal to 10 and smaller than or equal to 20, and y is larger than or equal to 1 and smaller than or equal to 5. Compared with strontium cerate Sr2CeO4 microwave dielectric ceramic, the medium dielectric constant microwave dielectric ceramic disclosed by the invention has the advantages that the extremely high Q*f value and medium dielectric constant performance of the medium dielectric ceramic material are maintained, the sintering temperature is greatly reduced, and the temperature coefficient of resonance frequency is kept stable, so that the requirements of microwave components such as resonators, filters and GPS antennas on the medium dielectric constant microwave dielectric ceramic material can be met. The preparation process is simple, the sintering temperature is low, and the repeatability is good.
本发明涉及材料科学领域，旨在提供一种铈酸锶系中介电常数微波介质陶瓷材料及其制备方法。该微波介质陶瓷材料的化学表达式为：(100‑x)wt％Sr2CeO4+x wt％M+y wt％N；其中，M为TiO2、CaTiO3或Sr2TiO4中的一种或几种混合，N为Li2CO3、Bi2O3或ZnO中的一种或几种混合，y为N占Sr2CeO4和M总质量的质量分数，其中10≤x≤20，1≤y≤5。相对于铈酸锶Sr2CeO4微波介质陶瓷而言，本发明在保持其极高Q×f值和中介电常数性能的同时，大大降低了烧结温度，并使谐振频率温度系数保持稳定，因而能够满足谐振器、滤波器、GPS天线等微波元器件对中介电常数微波介质陶瓷材料的需求。本发明制备工艺简单，烧结温度低，可重复性好。
Strontium cerate medium dielectric constant microwave dielectric ceramic material and preparation method thereof
The invention relates to the field of material science, and aims to provide a strontium cerate medium dielectric constant microwave dielectric ceramic material and a preparation method thereof. The chemical expression of the microwave dielectric ceramic material is (100-x) wt% Sr2CeO4+x wt% M+y wt% N, wherein M is one or a mixture of more of TiO2, CaTiO3 or Sr2TiO4, N is one or a mixture of more of Li2CO3, Bi2O3 or ZnO, y is the mass fraction of N accounting for the total mass of Sr2CeO4 and M, x is larger than or equal to 10 and smaller than or equal to 20, and y is larger than or equal to 1 and smaller than or equal to 5. Compared with strontium cerate Sr2CeO4 microwave dielectric ceramic, the medium dielectric constant microwave dielectric ceramic disclosed by the invention has the advantages that the extremely high Q*f value and medium dielectric constant performance of the medium dielectric ceramic material are maintained, the sintering temperature is greatly reduced, and the temperature coefficient of resonance frequency is kept stable, so that the requirements of microwave components such as resonators, filters and GPS antennas on the medium dielectric constant microwave dielectric ceramic material can be met. The preparation process is simple, the sintering temperature is low, and the repeatability is good.
本发明涉及材料科学领域，旨在提供一种铈酸锶系中介电常数微波介质陶瓷材料及其制备方法。该微波介质陶瓷材料的化学表达式为：(100‑x)wt％Sr2CeO4+x wt％M+y wt％N；其中，M为TiO2、CaTiO3或Sr2TiO4中的一种或几种混合，N为Li2CO3、Bi2O3或ZnO中的一种或几种混合，y为N占Sr2CeO4和M总质量的质量分数，其中10≤x≤20，1≤y≤5。相对于铈酸锶Sr2CeO4微波介质陶瓷而言，本发明在保持其极高Q×f值和中介电常数性能的同时，大大降低了烧结温度，并使谐振频率温度系数保持稳定，因而能够满足谐振器、滤波器、GPS天线等微波元器件对中介电常数微波介质陶瓷材料的需求。本发明制备工艺简单，烧结温度低，可重复性好。
Strontium cerate medium dielectric constant microwave dielectric ceramic material and preparation method thereof
一种铈酸锶系中介电常数微波介质陶瓷材料及其制备方法
ZHANG QILONG (author) / WANG HAO (author) / YANG HUI (author)
2021-12-07
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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