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Low-dielectric-constant microwave dielectric ceramic and preparation method thereof
The invention belongs to the field of electronic ceramic and manufacturing thereof, and particularly relates to low-dielectric-constant microwave dielectric ceramic and a preparation method thereof. The chemical expression of the microwave dielectric ceramic is BaZn < 1-x > Mg < x > P < 2 > O < 7 >, wherein x is greater than or equal to 0 and less than or equal to 0.06. The preparation method comprises the following steps: burdening, ball-milling, drying, sieving, presintering at 800 DEG C, carrying out secondary ball-milling, drying, granulating, molding, and sintering at 870-930 DEG C. According to the BaZn0.98Mg0.02P2O7 ceramic prepared by the invention, Zn < 2 + > is replaced by trace Mg < 2 + > ions to obtain excellent microwave dielectric properties, the dielectric constant of the BaZn0.98Mg0.02P2O7 ceramic is 8.21, the quality factor of the BaZn0.98Mg0.02P2O7 ceramic is 84759GHz, and the resonant frequency temperature coefficient is-21.88 ppm/DEG C. The method is simple in preparation process and low in raw material price, and has a wide application prospect in industry.
本发明属于电子陶瓷及其制造领域，特别涉及一种低介电常数微波介质陶瓷及其制备方法。所述微波介质陶瓷的化学表达式为：BaZnMgPO，其中0≤x≤0.06。其制备方法包括以下步骤：配料、球磨、烘干、过筛，于800℃预烧，再经二次球磨、烘干、造粒、成型，于870～930℃烧结。本发明制备的BaZnMgPO陶瓷通过微量Mg离子取代Zn获得优异的微波介电性能，其介电常数为8.21，品质因数为84759GHz，谐振频率温度系数为‑21.88ppm/℃。本发明制备工艺简单，原料价格低廉，在工业上具有广阔的应用前景。
Low-dielectric-constant microwave dielectric ceramic and preparation method thereof
The invention belongs to the field of electronic ceramic and manufacturing thereof, and particularly relates to low-dielectric-constant microwave dielectric ceramic and a preparation method thereof. The chemical expression of the microwave dielectric ceramic is BaZn < 1-x > Mg < x > P < 2 > O < 7 >, wherein x is greater than or equal to 0 and less than or equal to 0.06. The preparation method comprises the following steps: burdening, ball-milling, drying, sieving, presintering at 800 DEG C, carrying out secondary ball-milling, drying, granulating, molding, and sintering at 870-930 DEG C. According to the BaZn0.98Mg0.02P2O7 ceramic prepared by the invention, Zn < 2 + > is replaced by trace Mg < 2 + > ions to obtain excellent microwave dielectric properties, the dielectric constant of the BaZn0.98Mg0.02P2O7 ceramic is 8.21, the quality factor of the BaZn0.98Mg0.02P2O7 ceramic is 84759GHz, and the resonant frequency temperature coefficient is-21.88 ppm/DEG C. The method is simple in preparation process and low in raw material price, and has a wide application prospect in industry.
本发明属于电子陶瓷及其制造领域，特别涉及一种低介电常数微波介质陶瓷及其制备方法。所述微波介质陶瓷的化学表达式为：BaZnMgPO，其中0≤x≤0.06。其制备方法包括以下步骤：配料、球磨、烘干、过筛，于800℃预烧，再经二次球磨、烘干、造粒、成型，于870～930℃烧结。本发明制备的BaZnMgPO陶瓷通过微量Mg离子取代Zn获得优异的微波介电性能，其介电常数为8.21，品质因数为84759GHz，谐振频率温度系数为‑21.88ppm/℃。本发明制备工艺简单，原料价格低廉，在工业上具有广阔的应用前景。
Low-dielectric-constant microwave dielectric ceramic and preparation method thereof
一种低介电常数微波介质陶瓷及其制备方法
LI HAO (Autor:in) / CHEN XIAOQING (Autor:in) / CHEN GONGTIAN (Autor:in) / XIAO JING (Autor:in) / LU JIWU (Autor:in) / LI GAOSHENG (Autor:in)
10.07.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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