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Li3Mg2SbO6-BASED MICROWAVE DIELECTRIC CERAMIC MATERIAL EASY TO SINTER AND WITH HIGH Q VALUE, AND PREPARATION METHOD THEREFOR
A Li3Mg2SbO6-based microwave dielectric ceramic material easy to sinter and with high Q value, and a preparation method thereof are disclosed. A chemical formula of the material is Li3(Mg1-xZnx)2SbO6, wherein 0.02≤x≤0.08. The preparation method includes: 1) mixing and ball-milling Sb2O3 and Li2CO3 according to a chemical ratio and then drying, and conducting pre-sintering to obtain a Li3SbO4 phase; and 2) mixing and ball-milling MgO, ZnO and Li3SbO4 powder according a chemical ratio of Li3(Mg1-xZnx)2SbO6 and then drying, conducting granulation and sieving after adding an adhesive, pressing into a cylindrical body, and sintering the cylindrical body into ceramic in the air at 1325° C. and under normal pressure, wherein a dielectric constant is 7.2-8.5, a quality factor is 51844-97719 GHz, and a temperature coefficient of resonance frequency is −14-1 ppm/° C.
Li3Mg2SbO6-BASED MICROWAVE DIELECTRIC CERAMIC MATERIAL EASY TO SINTER AND WITH HIGH Q VALUE, AND PREPARATION METHOD THEREFOR
A Li3Mg2SbO6-based microwave dielectric ceramic material easy to sinter and with high Q value, and a preparation method thereof are disclosed. A chemical formula of the material is Li3(Mg1-xZnx)2SbO6, wherein 0.02≤x≤0.08. The preparation method includes: 1) mixing and ball-milling Sb2O3 and Li2CO3 according to a chemical ratio and then drying, and conducting pre-sintering to obtain a Li3SbO4 phase; and 2) mixing and ball-milling MgO, ZnO and Li3SbO4 powder according a chemical ratio of Li3(Mg1-xZnx)2SbO6 and then drying, conducting granulation and sieving after adding an adhesive, pressing into a cylindrical body, and sintering the cylindrical body into ceramic in the air at 1325° C. and under normal pressure, wherein a dielectric constant is 7.2-8.5, a quality factor is 51844-97719 GHz, and a temperature coefficient of resonance frequency is −14-1 ppm/° C.
Li3Mg2SbO6-BASED MICROWAVE DIELECTRIC CERAMIC MATERIAL EASY TO SINTER AND WITH HIGH Q VALUE, AND PREPARATION METHOD THEREFOR
LIU CHENG (Autor:in) / ZHANG HONGYANG (Autor:in) / YANG QINGHUI (Autor:in) / JIN LICHUAN (Autor:in) / LI YUANXUN (Autor:in) / ZHANG HUAIWU (Autor:in)
03.02.2022
Patent
Elektronische Ressource
Englisch
| Europäisches Patentamt | 2023
| Europäisches Patentamt | 2020
| Europäisches Patentamt | 2022
| Europäisches Patentamt | 2022
| Europäisches Patentamt | 2022