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Characterization of Lead Scandium Tantalate Ceramics Prepared by Precipitation Method
Author(s) -
Feng Chude,
Schulze Walter A.
Publication year - 1989
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1989.tb06021.x
Subject(s) - scandium , materials science , tantalate , precipitation , mineralogy , melilite , dielectric , ceramic , sintering , lithium tantalate , metallurgy , ferroelectricity , spinel , optoelectronics , chemistry , physics , meteorology , lithium niobate
Precipitation and coating techniques that proved successful for lead scandium niobate were tried with lead scandium tantalate. The Ta 2 O 5 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.