Influence of synthesis methods on the dielectric properties of (Ba0.2Pb0.8)TiO3ceramics

✍ Scribed by Kyung Hwa Jo; Eung Soo Kim; Ki Hyun Yoon

• Publisher: Springer
• Year: 1994
• Tongue: English
• Weight: 809 KB
• Volume: 29
• Category: Article
• ISSN: 0022-2461
• DOI: 10.1007/bf00351427

✦ Synopsis

The dielectric properties of (Bao.2Pbo.8)Ti03 prepared by several methods related to dispersion have been studied. The sol-gel derived specimens without dispersion have lower density, and lower dielectric constant at the Curie temperature. The sol-gel specimens derived from a well-dispersed suspension with pH 11 and 13, and 2% PMMA show higher dielectric constant at the Curie temperature, and higher density, because the grains grow homogeneously in the well-dispersed system. The sol-gel derived specimens have a higher Curie temperature than that of calcined mixed oxides and molten salt synthesis derived specimens.