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Ceramic Models for Study of Piezoelectricity in Solids
Author(s) -
WILLIAMS WENDELL S.,
BREGER LANCE,
JOHNSON MARVIN
Publication year - 1975
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.1151-2916.1975.tb19012.x
Subject(s) - piezoelectricity , ceramic , materials science , composite material , piezoelectric coefficient , polarization (electrochemistry) , compression (physics) , bending , chemistry
The piezoelectric behavior of certain biological materials (bone and tendon) was studied by comparing them with well‐understood piezoelectric ceramics (quartz and tourmaline). The results show that, whereas the ceramic model materials conform to the standard theory of piezoelectricity in both compression and bending, the organic materials deviate quantitatively and qualitatively in bending. An extension of the formal theory is developed to include a polarization proportional to the gradient of the stress and yields predictions in accord with the experimental findings for bone and tendon. Implications for transducers competing with electrical ceramics are noted.