Properties of mechanochemically pretreated precursors of doped BaTiO3ceramics

✍ Scribed by P. Baláž; J. Briančin; Z. Bastl; L. Medvecký; V. Šepelák

• Book ID: 104738039
• Publisher: Springer
• Year: 1994
• Tongue: English
• Weight: 857 KB
• Volume: 29
• Category: Article
• ISSN: 0022-2461
• DOI: 10.1007/bf00356532

✦ Synopsis

The properties of doped BaTi03 ceramics prepared from mechanically activated precursors (BaC03, TiO=, PbO), dopant (Sb) and admixtures (Si02, AI203) were investigated. Mechanical activation of the mixture 1.00 BaC03 + 1.15 TiO= + 0.10 PbO brings about an increase in its specific surface and partial amorphization of BaC03; Ba, 0 and C occur in the surface of this mixture in at least two chemically different states. BaTi03 obtained from the above mentioned mechanically activated precursors by high-temperature solid-state synthesis at 1100 ~ C consists of homogeneous particles with a narrow particle size distribution.