Production of Ba(Zn{sub 1/3}Nb{sub 2/3})O{sub 3} ceramic by coprecipitation

Journal Article · Sun Jan 15 00:00:00 EST 2012 · Materials Characterization

DOI:https://doi.org/10.1016/J.MATCHAR.2011.08.005· OSTI ID:22066407

Mergen, A; Sert, D

A simple coprecipitation technique was successfully applied for the preparation of pure, nanosized, single phase Ba(Zn{sub 1/3}Nb{sub 2/3})O{sub 3} microwave dielectric ceramic powders. Barium, zinc and niobium ions were precipitated as hydroxide under basic conditions using aqueous sodium hydroxide solution and single phase Ba(Zn{sub 1/3}Nb{sub 2/3})O{sub 3} ceramic was produced at 800 Degree-Sign C. TEM revealed an average particle size of around 100 nm for the calcined powders. The samples sintered at 1250 Degree-Sign C for 4 h had a relatively high density and fine grain sizes. While the dielectric constant of ceramics varied between 37.5 and 39.8 the dielectric losses were lower than 4 Multiplication-Sign 10{sup -3} at frequency range of 1 kHz-2 MHz between 20 and 200 Degree-Sign C. - Highlights: Black-Right-Pointing-Pointer Production of BZN by coprecipitation. Black-Right-Pointing-Pointer Nanoscale BZN powder. Black-Right-Pointing-Pointer Dielectric properties of BZN.

• OSTI ID: 22066407
• Journal Information: Materials Characterization, Vol. 63, Issue Complete; Other Information: Copyright (c) 2011 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1044-5803
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM COMPOUNDS
CERAMICS
COPRECIPITATION
DIELECTRIC MATERIALS
FREQUENCY DEPENDENCE
GRAIN SIZE
MICROWAVE RADIATION
NANOSTRUCTURES
NIOBATES
NIOBIUM IONS
PARTICLE SIZE
PERMITTIVITY
PEROVSKITE
POWDERS
RELAXATION LOSSES
SODIUM HYDROXIDES
TRANSMISSION ELECTRON MICROSCOPY
ZINC COMPOUNDS