Solid-State Preparation of BaTiO<sub><nobr>3</nobr></sub>-Based Dielectrics, Using Ultrafine Raw Materials期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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

Authors:	Detlev F. K. Hennings B. Seriyati Schreinemacher Herbert Schreinemacher

Affiliation:	Philips Research Laboratories, 52066 Aachen, Germany

Abstract:	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 <0.5 μm.

Keywords:	barium titanate dielectric materials/properties zirconium/zirconium compounds