Stroboscopic time-of-flight neutron diffraction during cyclic testing using the event data recording system at J-PARC

J-PARCにおけるイベントデータ記録システムを用いたサイクル試験中ストロボスコピック中性子回折

川崎 卓郎   ; 稲村 泰弘  ; 伊藤 崇芳*; 中谷 健 ; Harjo, S.   ; Gong, W.*; 相澤 一也  

Kawasaki, Takuro; Inamura, Yasuhiro; Ito, Takayoshi*; Nakatani, Takeshi; Harjo, S.; Gong, W.*; Aizawa, Kazuya

A time-resolved time-of-flight neutron diffraction technique to characterize the structural properties of materials during cyclic tests has been developed. By adopting the developed technique, the behaviors of the crystal lattice and domains of the piezoelectric material in a multilayer-type piezoelectric actuator driven by a cyclic electric field were evaluated. The variation in diffraction intensity during the application of a cyclic electric field was obtained successfully, and the hysteresis-like behaviors of both the lattice strain and the 90 domain switching were revealed.