Dielectric Properties of BaTiO3-KNbO3 Composites. (19th May 2017)

• Record Type: Journal Article
• Authors: Balčiūnas, Sergejus; Ivanov, Maksim; Banys, Jūras; Wada, Satoshi
• Is Part Of: Ferroelectrics. Volume 512(2017)
• Page Start: 8
• Page End: 13
• Publication Date: 2017-05-19
• Subjects: Ferroelectricity -- Periodicals; Ferroelectric crystals -- Periodicals; 537
• DOI: 10.1080/00150193.2017.1355178
• Languages: English
• ISSNs: 0015-0193

Abstract

ABSTRACT: This paper is focused on dielectric properties of potassium niobate (KN) –barium titanate (BT) composites with artificial morphotropic phase boundary (MPB). Ceramics with highest concentration of KN showed a glassy behaviour below 300 K temperature. Also two relaxation processes were observed, one in MHz and second at GHz range. The relaxation process in the MHz range follows Vogel-Fulcher law. The nature of the GHz dispersion is assumed to be electro-mechanical resonance.