中国物理B ›› 2019, Vol. 28 ›› Issue (4): 48301-048301.doi: 10.1088/1674-1056/28/4/048301

所属专题: TOPICAL REVIEW — Fundamental research under high magnetic fields

• SPECIAL TOPIC—Recent advances in thermoelectric materials and devices • 上一篇    下一篇

Orientation and alignment during materials processing under high magnetic fields

Zhong-Ming Ren(任忠鸣), Jiang Wang(王江), Rui-Xin Zhao(赵睿鑫)   

  1. State Key Laboratory of Advanced Special Steel & Shanghai Key Laboratory of Ferrometallurgy, Shanghai University, Shanghai 200444, China
  • 收稿日期:2018-12-04 修回日期:2019-01-22 出版日期:2019-04-05 发布日期:2019-04-05
  • 通讯作者: Zhong-Ming Ren, Jiang Wang E-mail:renzm2201@163.com;jiangwang417@163.com
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant Nos. U1560202, 51690162, and 51604172), the National Science and Technology Major Project “Aeroengine and Gas Turbine”, China (Grant No. 2017-VII-0008-0102), and the Shanghai Science and Technology Project, China (Grant No. 17JC1400602).

Orientation and alignment during materials processing under high magnetic fields

Zhong-Ming Ren(任忠鸣), Jiang Wang(王江), Rui-Xin Zhao(赵睿鑫)   

  1. State Key Laboratory of Advanced Special Steel & Shanghai Key Laboratory of Ferrometallurgy, Shanghai University, Shanghai 200444, China
  • Received:2018-12-04 Revised:2019-01-22 Online:2019-04-05 Published:2019-04-05
  • Contact: Zhong-Ming Ren, Jiang Wang E-mail:renzm2201@163.com;jiangwang417@163.com
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant Nos. U1560202, 51690162, and 51604172), the National Science and Technology Major Project “Aeroengine and Gas Turbine”, China (Grant No. 2017-VII-0008-0102), and the Shanghai Science and Technology Project, China (Grant No. 17JC1400602).

摘要:

The characteristics of lattice structures can make crystal possess distinct anisotropic features, such as the varying magnetism in different crystal orientations and different directions. The anisotropic magnetism can also cause the free energy to vary in different orientations of crystal in a magnetic field (magnetic anisotropy energy). Magneto-anisotropy can make the crystal rotate by the magnetic force moment on the crystal with the easy axis towards the direction of the magnetic field, and can also promote the preferential growth along a certain crystal direction at the lowest energy state. By solidification, vapor-deposition, heat treatment, slip casting and electrodeposition under magnetic field, the crystal structure with high grain orientation is obtained in a variety of binary eutectics, peritectic alloys, multicomponent alloys and high temperature superconducting materials. This makes it possible to fabricate texture-functional material by using high magnetic field and magneto-crystalline anisotropy of crystal. The purpose of this article is to review some recent progress of the orientation and alignment in material processing under a high magnetic field.

关键词: high magnetic field, orientation, alignment

Abstract:

The characteristics of lattice structures can make crystal possess distinct anisotropic features, such as the varying magnetism in different crystal orientations and different directions. The anisotropic magnetism can also cause the free energy to vary in different orientations of crystal in a magnetic field (magnetic anisotropy energy). Magneto-anisotropy can make the crystal rotate by the magnetic force moment on the crystal with the easy axis towards the direction of the magnetic field, and can also promote the preferential growth along a certain crystal direction at the lowest energy state. By solidification, vapor-deposition, heat treatment, slip casting and electrodeposition under magnetic field, the crystal structure with high grain orientation is obtained in a variety of binary eutectics, peritectic alloys, multicomponent alloys and high temperature superconducting materials. This makes it possible to fabricate texture-functional material by using high magnetic field and magneto-crystalline anisotropy of crystal. The purpose of this article is to review some recent progress of the orientation and alignment in material processing under a high magnetic field.

Key words: high magnetic field, orientation, alignment

中图分类号:  (Effects of electric and magnetic fields)

  • 83.60.Np
74.25.N- (Response to electromagnetic fields) 83.50.Uv (Material processing (extension, molding, etc.)) 81.30.Fb (Solidification)