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Low-temperature sintered Al2Mo3+xO12+3x microwave dielectric ceramic material with high Q*f value and preparation method of low-temperature sintered Al2Mo3+xO12+3x microwave dielectric ceramic material
The invention relates to a low-temperature sintered Al2Mo < 3 + > xO12 + 3x microwave dielectric ceramic material with a high Q * f value and a preparation method thereof.The preparation method comprises the steps that S1, Al2O3 original powder and MoO3 original powder are blended according to the chemical general formula Al2Mo < 3 + > xO12 + 3x, mixed powder is obtained, x is larger than or equal to 0.02 and smaller than or equal to 0.06; s2, sequentially carrying out primary planetary ball milling and sieving on the mixed powder, and pre-sintering the sieved powder to obtain pre-sintered powder; s3, carrying out secondary planetary ball milling, drying and bonding granulation on the pre-sintered powder to obtain a ceramic raw material; and S4, carrying out compression molding on the ceramic raw material, carrying out glue discharging, and sintering at 775-825 DEG C for 4-6 hours after glue discharging to obtain the Al2Mo < 3 + x > O < 12 + 3x > microwave dielectric ceramic material. According to the method, the lattice loss is reduced while the Al2Mo < 3 + x > O < 12 + 3x > low-temperature solid solution phase is formed, the prepared microwave dielectric ceramic still has a very excellent Q * f value while a relatively low dielectric constant is ensured, a corresponding research basis is added for a low-sintering low-dielectric low-loss material, and the selection range of the low-dielectric-constant LTCC microwave dielectric ceramic is widened.
本发明涉及一种低温烧结的高Q×f值Al2Mo3+xO12+3x微波介质陶瓷材料及其制备方法，制备方法包括：S1、将Al2O3原始粉料和MoO3原始粉料按照化学通式Al2Mo3+xO12+3x进行配料，得到混合粉体，其中，0.02≤x≤0.06；S2、将混合粉体依次进行第一次行星球磨和过筛，并将过筛粉体进行预烧，得到预烧粉体；S3、将预烧粉体进行第二次行星球磨、烘干和粘结造粒，得到陶瓷生料；S4、将陶瓷生料压制成型并进行排胶，排胶后在775～825℃条件下烧结4～6小时，得到Al2Mo3+xO12+3x微波介质陶瓷材料。该方法在形成Al2Mo3+xO12+3x低温固溶相的同时降低了晶格损耗，制得的微波介质陶瓷在保证较低的介电常数的同时仍具有十分优异Q×f值，为低烧低介低损耗的材料增加了相应的研究基础，拓宽了低介电常数LTCC微波介质陶瓷的选择范围。
Low-temperature sintered Al2Mo3+xO12+3x microwave dielectric ceramic material with high Q*f value and preparation method of low-temperature sintered Al2Mo3+xO12+3x microwave dielectric ceramic material
The invention relates to a low-temperature sintered Al2Mo < 3 + > xO12 + 3x microwave dielectric ceramic material with a high Q * f value and a preparation method thereof.The preparation method comprises the steps that S1, Al2O3 original powder and MoO3 original powder are blended according to the chemical general formula Al2Mo < 3 + > xO12 + 3x, mixed powder is obtained, x is larger than or equal to 0.02 and smaller than or equal to 0.06; s2, sequentially carrying out primary planetary ball milling and sieving on the mixed powder, and pre-sintering the sieved powder to obtain pre-sintered powder; s3, carrying out secondary planetary ball milling, drying and bonding granulation on the pre-sintered powder to obtain a ceramic raw material; and S4, carrying out compression molding on the ceramic raw material, carrying out glue discharging, and sintering at 775-825 DEG C for 4-6 hours after glue discharging to obtain the Al2Mo < 3 + x > O < 12 + 3x > microwave dielectric ceramic material. According to the method, the lattice loss is reduced while the Al2Mo < 3 + x > O < 12 + 3x > low-temperature solid solution phase is formed, the prepared microwave dielectric ceramic still has a very excellent Q * f value while a relatively low dielectric constant is ensured, a corresponding research basis is added for a low-sintering low-dielectric low-loss material, and the selection range of the low-dielectric-constant LTCC microwave dielectric ceramic is widened.
本发明涉及一种低温烧结的高Q×f值Al2Mo3+xO12+3x微波介质陶瓷材料及其制备方法，制备方法包括：S1、将Al2O3原始粉料和MoO3原始粉料按照化学通式Al2Mo3+xO12+3x进行配料，得到混合粉体，其中，0.02≤x≤0.06；S2、将混合粉体依次进行第一次行星球磨和过筛，并将过筛粉体进行预烧，得到预烧粉体；S3、将预烧粉体进行第二次行星球磨、烘干和粘结造粒，得到陶瓷生料；S4、将陶瓷生料压制成型并进行排胶，排胶后在775～825℃条件下烧结4～6小时，得到Al2Mo3+xO12+3x微波介质陶瓷材料。该方法在形成Al2Mo3+xO12+3x低温固溶相的同时降低了晶格损耗，制得的微波介质陶瓷在保证较低的介电常数的同时仍具有十分优异Q×f值，为低烧低介低损耗的材料增加了相应的研究基础，拓宽了低介电常数LTCC微波介质陶瓷的选择范围。
Low-temperature sintered Al2Mo3+xO12+3x microwave dielectric ceramic material with high Q*f value and preparation method of low-temperature sintered Al2Mo3+xO12+3x microwave dielectric ceramic material
一种低温烧结的高Q×f值Al2Mo3+xO12+3x微波介质陶瓷材料及其制备方法
LI ZHIMIN (Autor:in) / XU CHENGZHI (Autor:in) / YANG HONGYU (Autor:in) / ZHAO GUORUI (Autor:in)
01.12.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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