マッハツェンダー型干渉計により測定したPZTセラミックスの電界誘起歪における非180度ドメインの寄与

概要

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In order to evaluate the contribution of the non-180゜ domain reorientation in the electric-field-induced strains of PUT ceramics, a Mach-Zehnder interferometer was constructed and the electric-field-strain of PUT ceramics was measured as a function of frequency. The performance of the interferometer was confirmed using a LiNbO_3 single crystal and PUT ceramics. The piezoelectric constant of PUT ceramics determined by the interferometer well agreed with that determined by the resonance method and the result of LiNbO_3 single crystal was also approximately consistent with the literature. The resolution of the interferometer was about 0.01 nm. The electric-field-induced strain curve showed a hysteresis under high electric fields and low frequencies. The apparent piezoelectric constant determined from the electric-field-induced strain increased with decreasing frequency under high electric fields. These behaviors were interpreted as the effect of non-180゜ domain reorientation.
社団法人日本セラミックス協会の論文
1998-11-01