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Fluxing-agent-free low-loss LTCC material and preparation method thereof
The invention belongs to the field of microwave dielectric materials and manufacturing thereof, and particularly relates to a fluxing-agent-free low-loss LTCC material and a preparation method thereof. The chemical formula of the material is shown in the specification, Zn<3-x-y>CoCuB<2>O<6> (x is greater than or equal to 0.05 and less than or equal to 0.20, and y is greater than or equal to0.02 and less than or equal to 0.12); the sintering temperature ranges from 825 DEG C to 875 DEG C, the relative dielectric constant ranges from 5.85 to 6.95, the Q*f value ranges from 63400 GHz to 165000 GHz, and the temperature coefficient of resonance frequency ranges from-25 ppm/DEG C to-70 ppm/DEG C. Co and Cu ions are used for co-substitution; the sintering temperature of the material systemis reduced to 825-875 DEG C; the requirements of LTCC low-temperature sintering are completely met, the material loss is greatly reduced, the material is a pure ceramic material, no glass fluxing agent is doped, the preparation cost of the material is reduced, meanwhile, the problems of loss increase caused by glass doping and incompatibility of an LTCC process are avoided, and the preparation method has a good application prospect.
本发明属于微波介质材料及其制造领域，具体涉及一种无助熔剂低损耗LTCC材料及其制备方法。本发明材料的化合式为：ZnCoCuBO(0.05≤x≤0.20,0.02≤y≤0.12)，烧结温度825℃～875℃，相对介电常数5.85～6.95，Q×f值63400GHz～165000GHz，谐振频率温度系数‑25ppm/℃～‑70ppm/℃。在本发明中通过Co、Cu离子共替代的方式，将材料体系的烧结温度降低至825～875℃，完全满足LTCC低温烧结的要求，且材料损耗还能够大幅度的下降，材料为纯陶瓷材料，无玻璃助熔剂掺杂，降低了材料制备的成本，同时避免玻璃掺杂带来的损耗增大及LTCC工艺的不兼容问题，具有很好的应用前景。
Fluxing-agent-free low-loss LTCC material and preparation method thereof
The invention belongs to the field of microwave dielectric materials and manufacturing thereof, and particularly relates to a fluxing-agent-free low-loss LTCC material and a preparation method thereof. The chemical formula of the material is shown in the specification, Zn<3-x-y>CoCuB<2>O<6> (x is greater than or equal to 0.05 and less than or equal to 0.20, and y is greater than or equal to0.02 and less than or equal to 0.12); the sintering temperature ranges from 825 DEG C to 875 DEG C, the relative dielectric constant ranges from 5.85 to 6.95, the Q*f value ranges from 63400 GHz to 165000 GHz, and the temperature coefficient of resonance frequency ranges from-25 ppm/DEG C to-70 ppm/DEG C. Co and Cu ions are used for co-substitution; the sintering temperature of the material systemis reduced to 825-875 DEG C; the requirements of LTCC low-temperature sintering are completely met, the material loss is greatly reduced, the material is a pure ceramic material, no glass fluxing agent is doped, the preparation cost of the material is reduced, meanwhile, the problems of loss increase caused by glass doping and incompatibility of an LTCC process are avoided, and the preparation method has a good application prospect.
本发明属于微波介质材料及其制造领域，具体涉及一种无助熔剂低损耗LTCC材料及其制备方法。本发明材料的化合式为：ZnCoCuBO(0.05≤x≤0.20,0.02≤y≤0.12)，烧结温度825℃～875℃，相对介电常数5.85～6.95，Q×f值63400GHz～165000GHz，谐振频率温度系数‑25ppm/℃～‑70ppm/℃。在本发明中通过Co、Cu离子共替代的方式，将材料体系的烧结温度降低至825～875℃，完全满足LTCC低温烧结的要求，且材料损耗还能够大幅度的下降，材料为纯陶瓷材料，无玻璃助熔剂掺杂，降低了材料制备的成本，同时避免玻璃掺杂带来的损耗增大及LTCC工艺的不兼容问题，具有很好的应用前景。
Fluxing-agent-free low-loss LTCC material and preparation method thereof
一种无助熔剂低损耗LTCC材料及其制备方法
SU HUA (Autor:in) / ZHONG MAOFENG (Autor:in) / TANG XIAOLI (Autor:in) / JING YULAN (Autor:in) / LI YUANXUN (Autor:in)
25.09.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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