Surface acoustic wave and piezoelectric properties of (Pb, Ln) (Ti, Mn)O/sub 3/ ceramics (Ln = rare earths)

Journal Article · Wed Jul 01 04:00:00 EDT 1981 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.329375· OSTI ID:6198129

Ito, Y; Nagatsuma, K; Takeuchi, H; Jyomura, S

The surface acoustic wave (SAW) and piezoelectric properties of PbTi0/sub 3/ ceramics modified by the partial substitution of rare earths for Pb, particularly (Pb, Ln) (Ti, Mn)0/sub 3/ (Ln = La, Ce, Pr, Nd, Sm, or Gd) ceramics, are examined. The effects of the rare earths introduced on these properties are noted. Properties, such as velocities and electromechanical coupling factors, for bulk wave and SAW vary monotonically with the ionic sizes of the rare earths. On the other hand, the temperature coefficient of SAW delay time takes a minimum value when the Ln is Nd. It is shown that the variation of the temperature coefficient with rare earths corresponds well with those of the temperature coefficients of elastic constants C/sup E//sub 33/ and C/sup E//sub 44/.

• Research Organization: Central Research Laboratory, Hitachi Ltd., Kokubunji, Tokyo 185, Japan
• OSTI ID: 6198129
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 52:7; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
CERAMICS
CERIUM COMPOUNDS
COUPLING
DATA
DELAY CIRCUITS
ELASTICITY
ELECTRONIC CIRCUITS
ELEMENTS
GADOLINIUM COMPOUNDS
INFORMATION
LANTHANUM COMPOUNDS
MECHANICAL PROPERTIES
METALS
NEODYMIUM COMPOUNDS
OXYGEN COMPOUNDS
PRASEODYMIUM COMPOUNDS
RARE EARTH COMPOUNDS
RARE EARTHS
REACTIVITY COEFFICIENTS
SAMARIUM COMPOUNDS
SOUND WAVES
TEMPERATURE COEFFICIENT
TENSILE PROPERTIES
TITANATES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
VELOCITY