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Dielectric material for mid-temperature sintered high dielectric constant ceramic capacitor
The invention discloses a dielectric material for a mid-temperature sintered high dielectric constant ceramic capacitor and a preparation method of the dielectric material; the chemical formula of the dielectric material is Ba (Zr0.2Ti0.8) O3 + xmol%CuO, wherein x=0.1 to 0.8; the preparation method comprises the steps of firstly, batching BaCO3, TiO2, ZrO2 according to a stoichiometric equation Ba (Zr0.2Ti0.8) O3, after ball-milling, drying and screening, pre-sintering at the temperature of 1000 to 1150 DEG C; then adding 0.1 to 0.8mol% of CuO for mixing, and after ball-milling, drying and screening, forming a green body by pressing; sintering the green body at the temperature of 1270 to 1310 DEG C to prepare the dielectric material for the ceramic capacitor. According to the dielectric material provided by the invention, the dielectric constant epsilon gama is 7015 to 18484, the dielectric loss is 0.0621 to 0.05935, and the sintering temperature is 1270 to 1310 DEG C. The preparation method is simplified in process, the time is saved and the energy cost is reduced.
Dielectric material for mid-temperature sintered high dielectric constant ceramic capacitor
The invention discloses a dielectric material for a mid-temperature sintered high dielectric constant ceramic capacitor and a preparation method of the dielectric material; the chemical formula of the dielectric material is Ba (Zr0.2Ti0.8) O3 + xmol%CuO, wherein x=0.1 to 0.8; the preparation method comprises the steps of firstly, batching BaCO3, TiO2, ZrO2 according to a stoichiometric equation Ba (Zr0.2Ti0.8) O3, after ball-milling, drying and screening, pre-sintering at the temperature of 1000 to 1150 DEG C; then adding 0.1 to 0.8mol% of CuO for mixing, and after ball-milling, drying and screening, forming a green body by pressing; sintering the green body at the temperature of 1270 to 1310 DEG C to prepare the dielectric material for the ceramic capacitor. According to the dielectric material provided by the invention, the dielectric constant epsilon gama is 7015 to 18484, the dielectric loss is 0.0621 to 0.05935, and the sintering temperature is 1270 to 1310 DEG C. The preparation method is simplified in process, the time is saved and the energy cost is reduced.
Dielectric material for mid-temperature sintered high dielectric constant ceramic capacitor
LI LINGXIA (Autor:in) / SUN ZHENG (Autor:in) / ZHENG HAORAN (Autor:in) / LUO WEIJIA (Autor:in) / DU MINGKUN (Autor:in)
27.01.2016
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2020
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