Effect of 100 keV Class Electron Beam Irradiation on Impact Fatigue Behavior of PZT Ceramics

Naruya Tsuyuki; Anna Takahashi; Sagiri Takase; Daisuke Kitahara; Masae Kanda; Noriyuki Inoue; Kaori Yuse; Daniel Guyomar; Akira Tonegawa; Yoshihito Matsumura; Yoshitake Nishi

doi:10.2320/matertrans.M2017250

Naruya Tsuyuki, Anna Takahashi, Sagiri Takase, Daisuke Kitahara, Masae Kanda, Noriyuki Inoue, Kaori Yuse, Daniel Guyomar, Akira Tonegawa, Yoshihito Matsumura, Yoshitake Nishi

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Keywords: electron beam, irradiation, PZT, fatigue, collision

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2018 Volume 59 Issue 3 Pages 450-455

DOI https://doi.org/10.2320/matertrans.M2017250

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Abstract

The homogeneous and quick treatment of 100 keV class electron beam irradiation (EBI) improved the resistance to impact fatigue indicated by the critical collision number (N_c) of impact fracture of PZT (Pb(Nb_2/3Ni_1/3)O₃-Pb(Zr_1/3Ti_2/3)O₃) ceramics, although an additional dose decayed them. An optimal dose of 0.086 MGy-EBI apparently improved the N_c and E_Cⁱ of PZT. It could be explained by shortening the lattice constant after the collision for the PZT irradiated with the optimal dose.

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