Effects of high static magnetic field on crystal orientation and magnetic property of Bi-5wt.% Zn alloys

Tianxiang Zheng , Yunbo Zhong (1) , Zuosheng Lei (1) , Weili Ren (1) , Zhongming Ren (1) , Hui Wang , Qiuliang Wang (2) , François Debray (3) , Eric Beaugnon (3) , Yves Fautrelle (4)

1 Shanghai Key Laboratory of Trustworthy Computing
2 cermes - Géotechnique
3 LNCMI-G - Laboratoire national des champs magnétiques intenses - Grenoble
4 SIMaP - Science et Ingénierie des Matériaux et Procédés

Orientation behavior and magnetic property of Bi-5 wt.% Zn alloys were investigated under various magnetic fields. The c-axes of Zn crystals in eutectic BiZn structure, which have a maximum magnetic susceptibility, were completely parallel to the direction of 6 T high static magnetic field (HSMF). The alloys solidified at 0 T and 6 T showed a near-magnetic isotropic behavior whereas alloys solidified at 2 T and 4 T showed a magnetic anisotropic behavior. Magnetic properties at different directions of alloys were strictly dependent on the dimensions of Zn plates and value of angle between c-axis of Zn and a- or b-axis of Bi. These phenomena were explained by a mechanism known as rotation to orientation.

Domaines: Matériaux

Tianxiang Zheng, Yunbo Zhong, Zuosheng Lei, Weili Ren, Zhongming Ren, et al.. Effects of high static magnetic field on crystal orientation and magnetic property of Bi-5wt.% Zn alloys. Materials Letters, 2015, 140, pp.68-70. ⟨10.1016/j.matlet.2014.10.125⟩. ⟨hal-01122460⟩