Effect of rare-earth additives on electromechanical properties of modified lead titanate ceramics

Journal Article · Wed Dec 01 00:00:00 EST 1993 · Journal of the American Ceramic Society; (United States)

DOI:https://doi.org/10.1111/j.1151-2916.1993.tb06623.x· OSTI ID:5494811

Suwannasiri, Thitima; Safari, A ^[1]

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1. Rutgers, The State Univ. of New Jersey, Piscataway, NJ (United States). Dept. of Ceramic Science and Engineering

The influence of rare-earth additives, such as La, Nd, Sm, and Gd, and poling conditions on the electromechanical properties of (Pb[sub 1[minus]3x/2]Ln[sub x])(Ti[sub 0.98]Mn[sub 0.02])O[sub 3] compositions, x = 0.04--0.12, were investigated. The type and amount of additive were found to affect the lattice anisotropy, dielectric constant, and electromechanical properties. A large electro-mechanical anisotropy (k[sub t]lk[sub p]) could be obtained in 10 mol% Sm-modified and 8 mol% Gd-modified lead titanate ceramics, and seemed to correlate to a low Poisson's ratio.

• OSTI ID: 5494811
• Journal Information: Journal of the American Ceramic Society; (United States), Vol. 76:12; ISSN 0002-7820
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CERAMICS
ELECTRICAL PROPERTIES
MECHANICAL PROPERTIES
GADOLINIUM
METALLURGICAL EFFECTS
LANTHANUM
LEAD OXIDES
NEODYMIUM
SAMARIUM
TITANIUM OXIDES
CHALCOGENIDES
ELEMENTS
LEAD COMPOUNDS
METALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTHS
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
360203* - Ceramics
Cermets
& Refractories- Mechanical Properties
360204 - Ceramics
Cermets
& Refractories- Physical Properties