Magnetic properties of various martensitic phases in Ni-Mn-Ga alloy

被引：49
|
作者：
Straka, L [1 ]
Heczko, O [1 ]
Lanska, N [1 ]
机构：
[1] Helsinki Univ Technol, Dept Engn Math & Phys, Biomed Engn Lab, HUT, FIN-02015 Espoo, Finland
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2002年 / 38卷 / 05期
关键词：
magnetic anisotropy; magnetic shape memory effect; martensite; Ni-Mn-Ga alloys;
D O I：
10.1109/TMAG.2002.802469
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Single crystalline Ni48.7Mn29.1Ga22.2 sample was studied in the temperature range 110 K-425 K. Magnetic properties of four different structure phases were measured at different temperatures. The magnetic anisotropies of the different phases were determined from magnetization curves. At room temperature, the structure is five-layered modulated tetragonal martensite with c/a < 1 and uniaxial anisotropy K-u1 = 1.6 x 10(5) J(.)m(-3). Below 251 K, the structure is orthorhombic c < b < a with c being easy magnetization axis. The magnetic anisotropy energy is 2.1 x 10(5) J.m(-3) between c and a. At 218 K, the orthorhombic phase transforms to tetragonal phase with c/a > 1. Single variant of low-temperature martensite was obtained by cooling in magnetic field 1.4 T. At 173 K, the sum of magnetic anisotropy constants is K-1 + K-2 = 1.5 x 10(5) J.m(-3) assuming the easy-piane magnetic anisotropy.
引用
收藏
页码：2835 / 2837
页数：3
相关论文
共 50 条
  • [21] Enhanced Reversible Magnetic-Field-Induced Strain in Ni-Mn-Ga Alloy
    Wu, Pingping
    Liang, Yongfeng
    METALS, 2021, 11 (12)
  • [22] Shape memory effect in ferromagnetic Ni-Mn-Ga alloy
    Mahendran, M
    Puspanathan, K
    SYNTHESIS AND REACTIVITY IN INORGANIC METAL-ORGANIC AND NANO-METAL CHEMISTRY, 2006, 36 (01) : 83 - 88
  • [23] Effect of temperature on magnetic properties of Ni-Mn-Ga magnetic shape memory (MSM) alloys
    Heczko, O
    Ullakko, K
    IEEE TRANSACTIONS ON MAGNETICS, 2001, 37 (04) : 2672 - 2674
  • [24] Acoustic emission of Ni-Mn-Ga magnetic shape memory alloy in different straining modes
    Straka, L
    Novák, V
    Landa, M
    Heczko, O
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2004, 374 (1-2): : 263 - 269
  • [25] Ball milling effect on structural and magnetic properties of Ni-Mn-Ga ferromagnetic nanoparticles
    Peruman, Kaliyan Vallal
    Mahendran, Manickam
    PURE AND APPLIED CHEMISTRY, 2011, 83 (11) : 2071 - 2077
  • [26] Magnetic domain structure of epitaxial Ni-Mn-Ga films
    Diestel, Anett
    Backen, Anja
    Neu, Volker
    Schultz, Ludwig
    Faehler, Sebastian
    SCRIPTA MATERIALIA, 2012, 67 (05) : 423 - 426
  • [27] Using Kerr Microscopy for Direct Observation of Magnetic Domains in Ni-Mn-Ga Magnetic Shape Memory Alloy
    Heczko, Oleg
    Perevertov, Oleksiy
    Kral, Daniel
    Veis, Martin
    Soldatov, Ivan V.
    Schaefer, Rudolf
    IEEE TRANSACTIONS ON MAGNETICS, 2017, 53 (11)
  • [28] Effect of Annealing on Transformation Temperature and Magnetization in the Ni-Mn-Ga Alloy
    Pushpanathan, Kuppusamy
    Chokkalingam, Ramalingam
    Senthurpandi, Rajasabai
    Mahendran, Manickam
    MATERIALS AND MANUFACTURING PROCESSES, 2011, 26 (02) : 223 - 229
  • [29] Temperature dependence of the damping properties of Ni-Mn-Ga alloys
    Aaltio, I.
    Lahelin, M.
    Soderberg, O.
    Heczko, O.
    Lofgren, B.
    Ge, Y.
    Seppala, J.
    Hannula, S. -P.
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 481 : 314 - 317
  • [30] Ni-Mn-Ga multifunctional compounds
    Soderberg, O.
    Aaltio, I.
    Ge, Y.
    Heczko, O.
    Hannula, S. -P.
    MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 481 : 80 - 85
12345