Solid-State Preparation of BaTiO3-Based Dielectrics, Using Ultrafine Raw Materials

BaTiO3 and Ba(Ti,Zr)O3 dielectric powders have been prepared from submicrometer BaCO3, TiO2, and ZrO2. By use of submicrometer BaCO3 the intermediate formation of Ba2TiO4 second phase can be widely suppressed. Monophase perovskites of BaTiO3 were already formed at 900°C and Ba(Ti,Zr)O3 at 1050°C. Ag...

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Veröffentlicht in:	Journal of the American Ceramic Society 2001-12, Vol.84 (12), p.2777-2782
Hauptverfasser:	Hennings, Detlev F. K., Schreinemacher, B. Seriyati, Schreinemacher, Herbert
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences barium titanate Building materials. Ceramics. Glasses Ceramic industries Chemical industry and chemicals Chemistry Colloidal state and disperse state Condensed matter: electronic structure, electrical, magnetic, and optical properties dielectric materials/properties Dielectric, piezoelectric, ferroelectric and antiferroelectric materials Dielectrics, piezoelectrics, and ferroelectrics and their properties Electrotechnical and electronic ceramics Exact sciences and technology General and physical chemistry Niobates, titanates, tantalates, pzt ceramics, etc Physics Powders Technical ceramics zirconium/zirconium compounds
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Beschreibung
Zusammenfassung:	BaTiO3 and Ba(Ti,Zr)O3 dielectric powders have been prepared from submicrometer BaCO3, TiO2, and ZrO2. By use of submicrometer BaCO3 the intermediate formation of Ba2TiO4 second phase can be widely suppressed. Monophase perovskites of BaTiO3 were already formed at 900°C and Ba(Ti,Zr)O3 at 1050°C. Aggregates of very small subgrains could be easily disintegrated to particle sizes
ISSN:	0002-7820 1551-2916
DOI:	10.1111/j.1151-2916.2001.tb01094.x