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磁场下磁致伸缩材料制备过程控制及器件研发
Preparation Process Control and Device Development of Magnetostrictive Materials under Magnetic Field
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- DOI:
- 作者:
- 董蒙 1，2 ，刘源 1，2 ，陈祥 1，2
DONG Meng1,2, LIU Yuan1,2, CHEN Xiang1,2
- 作者单位:
- 1. 清华大学 材料学院，北京 100084；2. 清华大学 先进成形制造教育部重点实验室，北京 100084
1. School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China; 2. Key Laboratory for Advanced Materials Processing Technology (Ministry of Education), Beijing 100084, China
- 关键词:
- 磁场；磁致伸缩材料；凝固；晶体取向；换能器；超声导波无损检测
magnetic field; magnetostrictive materials; solidification; crystal orientation; transducer; ultrasonic guided wave nondestructive testing
- 摘要:
- 磁致伸缩材料的发展是新型磁结构被不断发现，材料制备与改性方法被不断改进，磁致伸缩系数被不断提
高的过程。 相应的，以新兴磁致伸缩材料为设计基础的磁致伸缩式器件也在不断涌现。 磁场作为一种物理场，经常被应
用于优化材料微观结构和性能。 本文综述了磁场辅助材料制备过程对各类磁致伸缩材料微观结构和磁致伸缩性能的影
响。 同时，介绍了以磁致伸缩材料为核心开发的各类磁致伸缩式器件。 根据应用场景，有针对性地设计磁致伸缩式器件
的输出形式、选择磁致伸缩材料种类，已经成为拓宽各类磁致伸缩材料及其器件应用领域的有效途径。
The development of magnetostrictive materials is a process in which new magnetic structures are constantly discovered, material preparation and modification methods are constantly improved, and magnetostrictive coefficient is constantly increased. Accordingly, magnetostrictive devices based on new magnetostrictive materials are emerging. As a kind of physical field, magnetic field is often used to optimize the microstructure and properties of materials. In this paper, the effects of the preparation process of magnetic field assisted materials on the microstructure and magnetostrictive properties of various magnetostrictive materials were reviewed. At the same time, various magnetostrictive devices based on magnetostrictive materials are introduced. According to the application scenarios, designing the output form of magnetostrictive devices and selecting the types of magnetostrictive materials have become an effective way to broaden the application fields of various magnetostrictive materials and devices.