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Effect of Additives on Properties of Lead Titanate
Author(s) -
TIEN T.Y.,
CARLSON W. G.
Publication year - 1962
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.1151-2916.1962.tb11060.x
Subject(s) - materials science , sintering , dielectric , barium titanate , microstructure , crystallite , piezoelectricity , dissipation factor , titanate , lead titanate , composite material , ceramic , mineralogy , ferroelectricity , metallurgy , chemistry , optoelectronics
The effect of additives on the properties of lead titanate was investigated. The additives employed were selected on the basis of potential solid solution or liquid formation with PbTiO 3 during sintering. Most of these additives aided sintering and produced dense polycrystalline specimens of PbTiO 3 with densities in the range 89 to 95% of theoretical. The dielectric constant and dissipation factor were found to vary considerably, depending on the additive employed. Some poled specimens exhibited a piezoelectric coefficient, d 33 , as high as 130 × 10 −12 coulombs per newton with a dielectric constant of about 160 at room temperature. The microstructure of some of the specimens was also studied and a texture similar to that of barium titanate was observed for those specimens which gave the higher piezoelectric response.