METHOD OF MANUFACTURING PIEZOELECTRIC MATERIAL AND PIEZOELECTRIC MATERIAL USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a piezoelectric material adaptable to a piezoelectric product such as a laminated piezoelectric actuator or a laminated piezoelectric transformer and having a composition in the vicinity of a morphotropic phase boundary between a tetragonal phase and a rhombohedral phase of a lead titanate zirconate-based piezoelectric material and a method of manufacturing the same.

SOLUTION: In the method of manufacturing the piezoelectric material having the composition in the vicinity of the morphotropic phase boundary, the piezoelectric material having excellent piezoelectric characteristics is obtained by analyzing a piezoelectric material using an X-ray diffraction-Rietveld analysis to identify a ceramic crystal phase after sintering as a mixed crystal of the tetragonal phase with the rhombohedral phase.

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