Second- and third-order piezoelectric stress constants of lithium niobate as determined by the impact-loading technique
Determination of the e/sub 22/, e/sub 33/, and e/sub 15/ second-order piezoelectric stress constants, several third-order piezoelectric stress constants, and the c/sup D//sub 11/ and c/sup D//sub 33/ elastic stiffness constants are reported for lithium niobate from experiments with input strains from 7 x 10/sup -4/ to 8 x 10/sup -3/ produced by the elastic impact-loading method. Measurements of the e/sub 33/ constant were made on a large number of samples to establish sample uniformity. The differences were found to be less than 1%. The present value of e/sub 33/ is higher than that reported in previous work and appears to call for a revision of the accepted value along with that of the elastic constant c/sup E//sub 33/. The third-order piezoelectric stress constants are readily detectable, but the values determined in the present investigation are limited in accuracy due to the relatively low strains which could be applied to the samples before conductivity became excessive.
- Research Organization:
- Sandia Laboratories, Albuquerque, New Mexico 87115
- OSTI ID:
- 7313775
- Journal Information:
- J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 48:6; ISSN JAPIA
- Country of Publication:
- United States
- Language:
- English
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360603* -- Materials-- Properties
ALKALI METAL COMPOUNDS
ELASTICITY
ELECTRICITY
IMPACT TESTS
LITHIUM COMPOUNDS
MATERIALS TESTING
MECHANICAL PROPERTIES
MECHANICAL TESTS
NIOBATES
NIOBIUM COMPOUNDS
OXYGEN COMPOUNDS
PIEZOELECTRICITY
PRESSURE DEPENDENCE
STRAINS
STRESSES
TENSILE PROPERTIES
TESTING
TRANSITION ELEMENT COMPOUNDS