Title

The Formation Mechanism for Dendritic Phase(s) in Batio3 Ceramcs

Abstract

The formation mechanism for a dendritic phase in BaTiO3 ceramics was investigated. Results show that the needle-like Ba6Ti17O40 only appeared at sintering temperatures above the eutectic point in TiO2 excess BaTiO3. The dendritic phases in BaTiO3 only occur with the presence of both Nb 5+ dopant and an excess of TiO2. The composition of the dendritic phase is close to Ba6Ti14O40 and Ba6Ti14Nb2O39 based on EDS analysis. Both the Ba6Ti17O40 and the Ba6Ti14Nb2O39 phases are linear dielectrics with low dielectric constants of 59 and 57, respectively.

Meeting Name

27th International Cocoa Beach Conference on Advanced Ceramics and Composites: B (2003: Jan. 26-31, Cocoa Beach, FL)

Department(s)

Materials Science and Engineering

Keywords and Phrases

Dopants; Barium compounds; Composition; Dendrimers; Doping (additives); Energy dispersive spectroscopy; Eutectics; Permittivity; Sintering; Ceramic materials

International Standard Serial Number (ISSN)

1966219

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2003 Wiley-Blackwell, All rights reserved.

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