Characterization of Lead Scandium Tantalate Ceramics Prepared by Precipitation Method

Characterization of Lead Scandium Tantalate Ceramics Prepared by Precipitation Method

Precipitation and coating techniques that proved successful for lead scandium niobate were tried with lead scandium tantalate. The Ta2O5 did not prove to be a useful substrate for the precipitating carbonates, but the resulting fine‐particle‐size powder lowered the sintering temperature to 1375° wit...

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Veröffentlicht in:Journal of the American Ceramic Society 1989-10, Vol.72 (10), p.2008-2011
Hauptverfasser: Feng, Chude, Schulze, Walter A.
Format: Artikel
Sprache:eng
Schlagworte:
360202 > Ceramics, Cermets, & Refractories-- Structure & Phase Studies
360204 > Ceramics, Cermets, & Refractories-- Physical Properties
Applied sciences
Building materials. Ceramics. Glasses
Ceramic industries
CHALCOGENIDES
Chemical industry and chemicals
coatings
COHERENT SCATTERING
COPRECIPITATION
DIELECTRIC PROPERTIES
DIFFRACTION
ELECTRICAL PROPERTIES
Exact sciences and technology
INFRARED SPECTRA
lead
LEAD COMPOUNDS
MATERIALS SCIENCE
NIOBATES
NIOBIUM COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PARTICLE SIZE
PHYSICAL PROPERTIES
POWDERS
PRECIPITATION
preparation
REFRACTORY METAL COMPOUNDS
scandium
SCANDIUM COMPOUNDS
SCATTERING
SEPARATION PROCESSES
SIZE
SPECTRA
TANTALATES
TANTALUM COMPOUNDS
TANTALUM OXIDES
Technical ceramics
TRANSITION ELEMENT COMPOUNDS 360201 > Ceramics, Cermets, & Refractories-- Preparation & Fabrication
X-RAY DIFFRACTION
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Zusammenfassung:Precipitation and coating techniques that proved successful for lead scandium niobate were tried with lead scandium tantalate. The Ta2O5 did not prove to be a useful substrate for the precipitating carbonates, but the resulting fine‐particle‐size powder lowered the sintering temperature to 1375° with only 0.4 wt% PbO loss. Annealed samples showed shifts in the dielectric response and sharpening of infrared and X‐ray diffraction patterns, but little development of super lattice.
ISSN:0002-7820
1551-2916
DOI:10.1111/j.1151-2916.1989.tb06021.x