Method for preparing low-temperature sintering ceramic dielectric material and obtained MLCC capacitor

The invention discloses a low-temperature sintering ceramic dielectric material comprising the following components by weight percent: 50-70wt% of main crystal phase, 0-13.4wt% of modified additive and 16.6-40.5wt% of glass fusion aid. The main crystal phase is alumina Al2O3. The modified additive i...

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Hauptverfasser:	CHEN ZIXIAN, CEN YUANQING, FU ZHENXIAO, DU ZEWEI, HAN WEI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ARTIFICIAL STONE BASIC ELECTRIC ELEMENTS CAPACITORS CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE ELECTRICITY LIME, MAGNESIA METALLURGY REFRACTORIES SLAG TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	The invention discloses a low-temperature sintering ceramic dielectric material comprising the following components by weight percent: 50-70wt% of main crystal phase, 0-13.4wt% of modified additive and 16.6-40.5wt% of glass fusion aid. The main crystal phase is alumina Al2O3. The modified additive is one or several of BaO, TiO2, MgO and CaO. The glass fusion aid is one or several of SiO2, ZnO, B2O3 and BiO. The method for preparing a ceramic capacitor by the ceramic dielectric material comprises the processes of pulping, flow casting, silk screen printing, laminating, cutting, sintering and end capping, and the sintering temperature is 800-1000 DEG C. The dielectric material conforms to the NPO ceramic dielectric property and has good environmental-protection property, high material dispersivity, good formation process and no cracking when being sintered.