Structural response of piezoelectric material studied by stroboscopic neutron diffraction under cyclic electric field

ストロボスコピック中性子回折を用いた周期的電場下での圧電材料の構造観察

川崎 卓郎   ; Harjo, S.   ; 相澤 一也  

Kawasaki, Takuro; Harjo, S.; Aizawa, Kazuya

In order to extend the application scope of neutron diffraction in engineering study, a stroboscopic time-of-flight (TOF) neutron diffraction technique has been developed. In this study, the technique was applied to measuring the behavior of crystal lattices and domain switching of piezoelectric materials under cyclic electric fields. The diffraction intensities from a PZT-based piezoelectric actuator were measured at the Engineering Materials Diffractometer TAKUMI in J-PARC. The intensities in the parallel direction and the vertical direction to the applied field were measured simultaneously. The responses of the lattice and the domain to the field were successfully evaluated from the obtained diffraction patterns.