Excellent magnetostrictive properties via tuning the crystal structure and grain size
Abstract
Magnetostrictive materials are of significant interest due to their potential applications in sensors, actuators, and energy converters. For magnetostrictive materials, different preparation processes are crucial to the quality of their magnetostrictive effect. In this work, Ni50Mn27Ga23 alloys in as-cast, directionally solidified, and melt-spun states were synthesized, and their structural, magnetic, and magnetostrictive properties were investigated. The results reveal that grain size and growth orientation are strongly influenced by the preparation method. Smaller grain sizes and increased grain boundaries hinder domain reorientation under external fields, leading to reduced magnetostriction and higher saturation fields. Growth orientation also affects saturation, further impacting both magnetic and magnetostrictive properties. This work provides valuable insights into the structure–magnetostriction relationship, offering guidance for developing excellent magnetostrictive materials.
Article Details
Journal Info
Applied Physics Letters
American Institute of Physics
Authors (10)
Qizhong Zhao
MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, State Key Laboratory for Mechanical Behavior of Materials, School of Physics, Xi'an Jiaotong University , Xi'an 710049,
Kun Wang
Beijing National Laboratory for Molecular Science, State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering
Jiale Guo
MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, State Key Laboratory for Mechanical Behavior of Materials, School of Physics, Xi'an Jiaotong University , Xi'an 710049,
Fanghua Tian
MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, State Key Laboratory for Mechanical Behavior of Materials, School of Physics, Xi'an Jiaotong University , Xi'an 710049,
Xiaojing Zhang
Kaiyan Cao
MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, School of Physics, Xi'an Jiaotong University 1 , Xi'an 710049,
Yin Zhang
Chao Zhou
School of Natural Sciences, Department Chemie, and Catalysis Research Center (CRC), Technische Universität München, Lichtenbergstrasse 4, 85747 Garching, Germany
Sen Yang
Xiaoping Song