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Low-dielectric low-loss magnesium silicate system microwave dielectric ceramic and low-temperature preparation method thereof
The invention relates to a low-dielectric low-loss magnesium silicate system microwave dielectric ceramic and a low-temperature preparation method thereof. According to the invention, Mg2SiO4 ceramic is taken as a matrix, Mg < 2 + > is adopted for non-stoichiometric modification, CaTiO3 is adopted for adjusting the temperature stability, LiF is adopted for reducing the sintering temperature, the multi-phase composite microwave dielectric ceramic of Mg2.1 SiO4.1-xCaTiO3-yLiF is synthesized through a traditional solid-phase reaction method, x is equal to 0.09-0.13, and y is equal to 0.05-0.25. Through multiphase compounding, the prepared Mg2. 1SiO4. XCaTiO3-yLiF has a low dielectric constant, low dielectric loss and a resonant frequency temperature coefficient close to zero, and the sintering temperature of a ceramic sample is reduced. According to the invention, an alternative material can be provided for preparing components for high-frequency communication by an LTCC technology, and the preparation method has a wide application prospect.
本发明涉及一种低介低损耗硅酸镁体系微波介质陶瓷及其低温制备方法。本发明以Mg2SiO4陶瓷为基体，采用Mg2+非化学计量改性，CaTiO3调节温度稳定性以及LiF降低烧结温度，通过传统固相反应法合成了Mg2.1SiO4.1‑xCaTiO3‑yLiF的多相复合微波介质陶瓷，其中x＝0.09～0.13，y＝0.05～0.25。多相复合使制备出的Mg2.1SiO4.1‑xCaTiO3‑yLiF具备低的介电常数、低的介电损耗和接近零的谐振频率温度系数，并且降低了陶瓷样品的烧结温度。本发明可以为LTCC技术制备高频通讯用组件提供一种备选材料，具有广阔的应用前景。
Low-dielectric low-loss magnesium silicate system microwave dielectric ceramic and low-temperature preparation method thereof
The invention relates to a low-dielectric low-loss magnesium silicate system microwave dielectric ceramic and a low-temperature preparation method thereof. According to the invention, Mg2SiO4 ceramic is taken as a matrix, Mg < 2 + > is adopted for non-stoichiometric modification, CaTiO3 is adopted for adjusting the temperature stability, LiF is adopted for reducing the sintering temperature, the multi-phase composite microwave dielectric ceramic of Mg2.1 SiO4.1-xCaTiO3-yLiF is synthesized through a traditional solid-phase reaction method, x is equal to 0.09-0.13, and y is equal to 0.05-0.25. Through multiphase compounding, the prepared Mg2. 1SiO4. XCaTiO3-yLiF has a low dielectric constant, low dielectric loss and a resonant frequency temperature coefficient close to zero, and the sintering temperature of a ceramic sample is reduced. According to the invention, an alternative material can be provided for preparing components for high-frequency communication by an LTCC technology, and the preparation method has a wide application prospect.
本发明涉及一种低介低损耗硅酸镁体系微波介质陶瓷及其低温制备方法。本发明以Mg2SiO4陶瓷为基体，采用Mg2+非化学计量改性，CaTiO3调节温度稳定性以及LiF降低烧结温度，通过传统固相反应法合成了Mg2.1SiO4.1‑xCaTiO3‑yLiF的多相复合微波介质陶瓷，其中x＝0.09～0.13，y＝0.05～0.25。多相复合使制备出的Mg2.1SiO4.1‑xCaTiO3‑yLiF具备低的介电常数、低的介电损耗和接近零的谐振频率温度系数，并且降低了陶瓷样品的烧结温度。本发明可以为LTCC技术制备高频通讯用组件提供一种备选材料，具有广阔的应用前景。
Low-dielectric low-loss magnesium silicate system microwave dielectric ceramic and low-temperature preparation method thereof
低介低损耗硅酸镁体系微波介质陶瓷及其低温制备方法
FU MAOSEN (author) / GUO HANJU (author) / ZHANG QINYU (author) / LIU YANGYANG (author) / MA XIAO (author)
2024-11-29
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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