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Ni47Mn32Ga21多晶合金的磁熵变和磁感生应变

蔡培阳 冯尚申 陈卫平 薛双喜 李志刚 周英 王海波 王古平

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Ni47Mn32Ga21多晶合金的磁熵变和磁感生应变

蔡培阳, 冯尚申, 陈卫平, 薛双喜, 李志刚, 周英, 王海波, 王古平

Magnetic entropy change and magnetic-field-induced strain in polycrystalline Ni47Mn32Ga21 alloy

Cai Pei-Yang, Feng Shang-Shen, Chen Wei-Ping, Xue Shuang-Xi, Li Zhi-Gang, Zhou Ying, Wang Hai-Bo, Wang Gu-Ping
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  • 对定向凝固方法制备的Ni47Mn32Ga21多晶合金,通过扫描电镜、金相、电子能谱等手段研究其组份和组织形貌,通过对合金磁化强度与温度关系、等温磁化曲线及磁感生应变曲线等的测量分析,研究了合金结构相变和磁相变过程中的磁熵变及不同压力下的磁感生应变. 研究结果表明:合金组份与设计组份基本一致,室温下合金大部分为马氏体相. 升温过程中合金的磁熵变在居里温度(365 K)附近有最大值,并有较大的磁熵变峰值半高宽,747 kA/m的磁场下该磁熵变最大值为-1.45 J/kg K,磁熵变峰值的半高宽为21 K. 合金在室温(298 K)下有较好的双向可恢复磁感生应变,480 kA/m磁场下,无压力时合金的磁感生应变值达到-67010-6,并趋饱和;而在与磁场方向平行的27.3 MPa外压力作用下合金的磁感生应变值增大到-130010-6,且未饱和.
    The Ni47Mn32Ga21 polycrystalline alloy is prepared by the directional solidification technique. The components and the microstructure of the alloy are investigated using SEM, metallography and EDS methods. The magnetic entropy change in the process of the structural and magnetic phase transition, and magnetic-field-induced strains with pressure are also studied through analyzing the magnetization as a function of temperature, and the isotherm magnetization and magnetic field-induced strain curves. The results show that there is little difference between the component and the designed component. The alloy is comprised mainly of martensitic phase at room temperature. In the heating process, the magnetic entropy change reaches a maximum value and has a larger peak half width near Curie temperature(365 K). The maximum value of the magnetic entropy change is -1.45 J/kg K in a magnetic field of 747 kA/m and its peak half width is 21 K. The Ni47Mn32Ga21 alloy exhibits excellent free recoverability of the magnetic-field-induced strains at room temperature(298 K). The magnetic-field-induced strain reaches a saturated value of -67010-6 without extra stress in a field of 480 kA/m. When the compressive stressis parallel to the direction of the magnetic field, the magnetic-field-induced strain increases evidently with the increase of the pressure, which reaches -130010-6 under a pressure of 27.3 MPa. Meanwhile the strain does not reach the saturated value.
    • 基金项目: 国家自然科学基金(批准号:51001078)、浙江省科技厅重点项目(批准号:2006C21085)和浙江省自然科学基金(批准号:Y4100618)资助的课题.
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    Marcos J, Planes A, Maosa L, Casanova F, Batlle X, Labarta A, Martnez B 2002 Phys. Rev. B 66 224413

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    Hu F X, Sun J R, Wu G H, Shen B G 2001 J. Appl. Phys. 90 5216

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    Murray S J, Farinelli M, Kantner C, Huang J K, Allen S M, OHandley R C 1998 J. Appl. Phys. 83 7297

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    Ma L, Zhu Z Y, Li M, Yu S D, Cui Q L, Zhou Q, Chen J L, Wu G H 2009 Aact Phys. Sin. 58 3479 (in Chinese) [马 丽、 朱志永、 李 敏、 于世丹、 崔启良、 周 强、 陈京兰、 吴光恒 2009 物理学报 58 3479]

  • [1]

    Hu F X, Shen B G, Sun J R 2000 Appl. Phys. Lett. 76 3460

    [2]
    [3]

    Thang J Y, Luo J, Liang J K, Ji L N, Liu Y H, Li J B, Rao G H 2008 Aact Phys. Sin. 57 6482 (in Chinese) [张继业、 骆 军、 梁敬魁、 纪丽娜、 刘延辉、 李静波、 饶光辉 2008 物理学报 57 6482]

    [4]
    [5]

    Pasquale M, Sasso C P, Lewis L H, Giudici L, Lograsso T, Schlage D 2005 Phys. Rev. B 72 094435

    [6]

    Cui Y T, You S Q, Wu L, Ma Y, Kong C Y, Yang X H, Pan F S 2010 Rare Metal Materials and Engineering 39 0189

    [7]
    [8]
    [9]

    Mandal K, Pal D, Scheerbaum N, Lyubina J, Gutfleisch O 2009 J. Appl. Phys. 105 073509

    [10]
    [11]

    Tegus O, Brck E, Zhang L, Dagula, Buschow K H J, Boer F R 2002 Physica B: Condensed Matter 319 174

    [12]

    Duan J F, Huang P, Zhang H, Long Y, Wu G H, Ye R C, Chang Y Q, Wan F R 2007 J. Alloys Comp. 441 29

    [13]
    [14]
    [15]

    Sderberg O, Ge Y, Sozinov A, Hannula S P, Lindroos V K 2005 Smart. Mater. Struct. 14 S223

    [16]

    Guo S H, Zhang Y H, Zhao Z Q, Li J L,Wang X L 2004 Aact Phys. Sin. 53 1599 (in Chinese) [郭世海、 张羊换、 赵增祺、 李健靓、 王新林 2004 物理学报 53 1599]

    [17]
    [18]

    Malla A, Dapino M J, Lograsso T A, Schlagel D L 2006 J. Appl. Phys. 99 063903

    [19]
    [20]

    Aliev A, Batdalov A, Bosko S, Buchelnikov V, Dikshtein I, Khovailo V, Koledov V, Levitin R, Shavrov V, Takagi T 2004 J. Magn. Magn. Mater. 272-276 2040

    [21]
    [22]

    Ingale B, Gopalan R, Chandrasekaran V, Ram S 2009 J. Appl. Phys. 105 023903

    [23]
    [24]

    Hu F X, Shen B G, Sun J R, Wu G H 2001 Phys. Rev. B 64 132412

    [25]
    [26]

    Cherechukin A A, Takagi T, Matsumoto M, Buchel'nikov V D 2004 Phys. Lett. A 326 146

    [27]
    [28]

    Long Y, Zhang Z Y, Wen D, Wu G H, Ye R C, Chang Y Q, Wan F R 2005 J. Appl. Phys. 98 046102

    [29]
    [30]
    [31]

    Liu X B, Shen B G 2005 Aact Phys. Sin. 54 5884 (in Chinese) [刘喜斌、 沈保根 2005 物理学报 54 5884]

    [32]
    [33]

    Tang Y J, Solomon V C, Smith D J, Harper H, Berkowitz A E 2005 J. Appl. Phys. 97 10M309

    [34]

    Karaca H E, Karaman I, Basaran B, Lagoudas D C, Chumlyakov Y I, Maier H J 2007 Acta Mate. 55 4253

    [35]
    [36]
    [37]

    Karaman I, Karaca H E, Basaran B, Lagoudas D C, Chumlyakovc Y I, Maierd H J 2006 Scripta Mater. 55 403

    [38]
    [39]

    Marcos J, Planes A, Maosa L, Casanova F, Batlle X, Labarta A, Martnez B 2002 Phys. Rev. B 66 224413

    [40]

    Hu F X, Sun J R, Wu G H, Shen B G 2001 J. Appl. Phys. 90 5216

    [41]
    [42]
    [43]

    Murray S J, Farinelli M, Kantner C, Huang J K, Allen S M, OHandley R C 1998 J. Appl. Phys. 83 7297

    [44]
    [45]

    Ma L, Zhu Z Y, Li M, Yu S D, Cui Q L, Zhou Q, Chen J L, Wu G H 2009 Aact Phys. Sin. 58 3479 (in Chinese) [马 丽、 朱志永、 李 敏、 于世丹、 崔启良、 周 强、 陈京兰、 吴光恒 2009 物理学报 58 3479]

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  • PDF下载量:  707
  • 被引次数: 0
出版历程
  • 收稿日期:  2010-12-26
  • 修回日期:  2011-01-11
  • 刊出日期:  2011-05-05

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