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Microwave dielectric ceramic material as well as preparation method and application thereof
The invention discloses a microwave dielectric ceramic material and a preparation method and application thereof, the microwave dielectric ceramic material comprises a principal crystalline phase and doped cations, the chemical formula of the principal crystalline phase is Mg (Ti2O5) x-Mg (Al2O4) (1-x), x is more than or equal to 0.17 and less than or equal to 0.26; the doped cations comprise at least one of barium ions, calcium ions, zinc ions, lanthanum ions, niobium ions and bismuth ions; magnesium ions, zinc ions, lanthanum ions and niobium ions in the principal crystalline phase are replaced by barium ions and calcium ions, and magnesium ions, aluminum ions or titanium ions in the principal crystalline phase are replaced by bismuth ions; magnesium ions, aluminum ions and titanium ions in the main crystal phase are replaced by barium ions, calcium ions, zinc ions, lanthanum ions, niobium ions and bismuth ions, so that crystal lattices in the main crystal phase are distorted, the final synthesis temperature is reduced, the dielectric constant and the capacity temperature coefficient are adjusted, the dielectric loss is reduced, and the comprehensive performance of the microwave dielectric ceramic material is improved.
本发明公开了一种微波介质陶瓷材料及其制备方法和应用，微波介质陶瓷材料包括主晶相和掺杂阳离子，所述主晶相的化学式为：Mg(Ti2O5)x‑Mg(Al2O4)(1‑x)，其中0.17≤x≤0.26；掺杂阳离子包括钡离子、钙离子、锌离子、镧离子、铌离子以及铋离子中至少一种；钡离子和钙离子取代主晶相中的镁离子，锌离子、镧离子、铌离子以及铋离子取代主晶相中的镁离子、铝离子或钛离子；通过钡离子、钙离子、锌离子、镧离子、铌离子以及铋离子对主晶相中的镁离子、铝离子以及钛离子进行取代，使得主晶相中的晶格发生畸变，最终合成温度降低、调节介电常数及容量温度系数、降低介质损耗，提高微波介质陶瓷材料的综合性能。
Microwave dielectric ceramic material as well as preparation method and application thereof
The invention discloses a microwave dielectric ceramic material and a preparation method and application thereof, the microwave dielectric ceramic material comprises a principal crystalline phase and doped cations, the chemical formula of the principal crystalline phase is Mg (Ti2O5) x-Mg (Al2O4) (1-x), x is more than or equal to 0.17 and less than or equal to 0.26; the doped cations comprise at least one of barium ions, calcium ions, zinc ions, lanthanum ions, niobium ions and bismuth ions; magnesium ions, zinc ions, lanthanum ions and niobium ions in the principal crystalline phase are replaced by barium ions and calcium ions, and magnesium ions, aluminum ions or titanium ions in the principal crystalline phase are replaced by bismuth ions; magnesium ions, aluminum ions and titanium ions in the main crystal phase are replaced by barium ions, calcium ions, zinc ions, lanthanum ions, niobium ions and bismuth ions, so that crystal lattices in the main crystal phase are distorted, the final synthesis temperature is reduced, the dielectric constant and the capacity temperature coefficient are adjusted, the dielectric loss is reduced, and the comprehensive performance of the microwave dielectric ceramic material is improved.
本发明公开了一种微波介质陶瓷材料及其制备方法和应用，微波介质陶瓷材料包括主晶相和掺杂阳离子，所述主晶相的化学式为：Mg(Ti2O5)x‑Mg(Al2O4)(1‑x)，其中0.17≤x≤0.26；掺杂阳离子包括钡离子、钙离子、锌离子、镧离子、铌离子以及铋离子中至少一种；钡离子和钙离子取代主晶相中的镁离子，锌离子、镧离子、铌离子以及铋离子取代主晶相中的镁离子、铝离子或钛离子；通过钡离子、钙离子、锌离子、镧离子、铌离子以及铋离子对主晶相中的镁离子、铝离子以及钛离子进行取代，使得主晶相中的晶格发生畸变，最终合成温度降低、调节介电常数及容量温度系数、降低介质损耗，提高微波介质陶瓷材料的综合性能。
Microwave dielectric ceramic material as well as preparation method and application thereof
一种微波介质陶瓷材料及其制备方法和应用
WANG XIAOLING (author) / ZHANG LING (author) / KANG JIANHONG (author) / RAN LONGRONG (author) / SU HONG (author)
2024-05-17
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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