Acoustic emission and domain switching in tetragonal lead zirconate titanate ceramics

The electric field-induced acoustic emission (AE) in a poled tetragonal lead zirconate titanate (PZT) ceramic was measured at room temperature and related to the polarization switching, field-induced strain, dielectric constant, and piezoelectric constant in the high-voltage electric field. The AE s...

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Bibliographic Details
Published in:Japanese Journal of Applied Physics 1994, Vol.33 (9B), p.5555-5558
Main Authors: SAITO, Y, HORI, S
Format: Article
Language:English
Subjects:
Acoustical properties of solids
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Condensed matter: structure, mechanical and thermal properties
Dielectric, piezoelectric, ferroelectric and antiferroelectric materials
Dielectrics, piezoelectrics, and ferroelectrics and their properties
Exact sciences and technology
Mechanical and acoustical properties of condensed matter
Niobates, titanates, tantalates, pzt ceramics, etc
Physics
Piezoelectricity and electromechanical effects
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Summary:The electric field-induced acoustic emission (AE) in a poled tetragonal lead zirconate titanate (PZT) ceramic was measured at room temperature and related to the polarization switching, field-induced strain, dielectric constant, and piezoelectric constant in the high-voltage electric field. The AE signals became most remarkable when the polarization approached the saturation, while they became minimal when the polarization reversal occurred. The AE count, expressed as a function of electric field, exhibited a hysteresis loop similar to the strain loop. These data suggest that the AE signals were generated by the strain due to 90° domain switching rather than the piezoelectric strain.
ISSN:0021-4922
1347-4065
DOI:10.1143/jjap.33.5555