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Low-dielectric high-entropy microwave dielectric ceramic with garnet structure and preparation method of low-dielectric high-entropy microwave dielectric ceramic
The invention relates to the technical field of dielectric ceramics, in particular to a low-dielectric high-entropy microwave dielectric ceramic with a garnet structure and a preparation method of the low-dielectric high-entropy microwave dielectric ceramic with the garnet structure, and the chemical composition expression of the low-dielectric high-entropy microwave dielectric ceramic with the garnet structure is Ca3 (Co < 0.2 > Cu < 0.2 > Mg < 0.2 > Zn < 0.2 > Ni < 0.2 >) 2SiV < 2 > O < 12 >. The Ca3 (Co0. 2Cu0. 2Mg0. 2Zn0. 2Ni0. 2) 2SiV2O12 pure-phase low-dielectric high-entropy microwave dielectric ceramic with the garnet structure is successfully synthesized by introducing the high-entropy effect into the garnet structure and optimizing the sintering temperature. The microwave dielectric ceramic prepared by the method has the advantages that the dielectric constant is 6.5-10.4, the quality factor is 12490-62440GHz, the temperature coefficient of resonance frequency is-9.2 to-7.4 ppm/DEG C, the microwave dielectric property is excellent, and the microwave dielectric ceramic has important practical application value.
本发明涉及介质陶瓷技术领域，具体涉及一种具有石榴石结构的低介高熵微波介质陶瓷及其制备方法，所述具有石榴石结构的低介高熵微波介质陶瓷的化学组成表达式为Ca3(Co0.2Cu0.2Mg0.2Zn0.2Ni0.2)2SiV2O12。通过将高熵效应引入石榴石结构，优化烧结温度，成功合成出一种具有石榴石结构的Ca3(Co0.2Cu0.2Mg0.2Zn0.2Ni0.2)2SiV2O12纯相低介高熵微波介质陶瓷。其介电常数为6.5～10.4，品质因数为12490～62440GHz，谐振频率温度系数为‑9.2～‑7.4ppm/℃，微波介电性能优异，具有重要的实际应用价值。
Low-dielectric high-entropy microwave dielectric ceramic with garnet structure and preparation method of low-dielectric high-entropy microwave dielectric ceramic
The invention relates to the technical field of dielectric ceramics, in particular to a low-dielectric high-entropy microwave dielectric ceramic with a garnet structure and a preparation method of the low-dielectric high-entropy microwave dielectric ceramic with the garnet structure, and the chemical composition expression of the low-dielectric high-entropy microwave dielectric ceramic with the garnet structure is Ca3 (Co < 0.2 > Cu < 0.2 > Mg < 0.2 > Zn < 0.2 > Ni < 0.2 >) 2SiV < 2 > O < 12 >. The Ca3 (Co0. 2Cu0. 2Mg0. 2Zn0. 2Ni0. 2) 2SiV2O12 pure-phase low-dielectric high-entropy microwave dielectric ceramic with the garnet structure is successfully synthesized by introducing the high-entropy effect into the garnet structure and optimizing the sintering temperature. The microwave dielectric ceramic prepared by the method has the advantages that the dielectric constant is 6.5-10.4, the quality factor is 12490-62440GHz, the temperature coefficient of resonance frequency is-9.2 to-7.4 ppm/DEG C, the microwave dielectric property is excellent, and the microwave dielectric ceramic has important practical application value.
本发明涉及介质陶瓷技术领域，具体涉及一种具有石榴石结构的低介高熵微波介质陶瓷及其制备方法，所述具有石榴石结构的低介高熵微波介质陶瓷的化学组成表达式为Ca3(Co0.2Cu0.2Mg0.2Zn0.2Ni0.2)2SiV2O12。通过将高熵效应引入石榴石结构，优化烧结温度，成功合成出一种具有石榴石结构的Ca3(Co0.2Cu0.2Mg0.2Zn0.2Ni0.2)2SiV2O12纯相低介高熵微波介质陶瓷。其介电常数为6.5～10.4，品质因数为12490～62440GHz，谐振频率温度系数为‑9.2～‑7.4ppm/℃，微波介电性能优异，具有重要的实际应用价值。
Low-dielectric high-entropy microwave dielectric ceramic with garnet structure and preparation method of low-dielectric high-entropy microwave dielectric ceramic
一种具有石榴石结构的低介高熵微波介质陶瓷及其制备方法
LI JIAMAO (Autor:in) / WANG JUNXIAN (Autor:in) / WANG ZEXING (Autor:in) / GUO YUNFENG (Autor:in) / TAO ZHENLI (Autor:in)
18.10.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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