中国物理B ›› 2012, Vol. 21 ›› Issue (8): 86102-086102.doi: 10.1088/1674-1056/21/8/086102

• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇    下一篇

Amorphous-crystalline dual-layer structures resulting from metastable liquid phase separation in (Fe50Co25B15Si10)80Cu20 melt-spun ribbons

曹崇德a, 弓素莲a, 郭晋波a, 宋瑞波a, 孙占波b, 杨森b, 王伟民c   

  1. a Department of Applied Physics, Northwestern Polytechnic University, Xi'an 710072, China;
    b School of Science, Xi'an Jiaotong University, Xi'an 710049, China;
    c Scool of Materials Science and Engineering, Shandong University, Ji'nan 250061, China
  • 收稿日期:2011-12-28 修回日期:2012-03-05 出版日期:2012-07-01 发布日期:2012-07-01
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 51171152 and 50871088), the Foundation for Fundamental Research of Northwestern Polytechnic University, China (Grant No. JC201268), and the Fund of the State Key Laboratory of Solidification Processing, China (Grant No. SKLSP201202).

Amorphous-crystalline dual-layer structures resulting from metastable liquid phase separation in (Fe50Co25B15Si10)80Cu20 melt-spun ribbons

Cao Chong-De (曹崇德)a, Gong Su-Lian (弓素莲)a, Guo Jin-Bo (郭晋波)a, Song Rui-Bo (宋瑞波)a, Sun Zhan-Bo (孙占波)b, Yang Sen (杨森)b, Wang Wei-Min (王伟民 )c   

  1. a Department of Applied Physics, Northwestern Polytechnic University, Xi'an 710072, China;
    b School of Science, Xi'an Jiaotong University, Xi'an 710049, China;
    c Scool of Materials Science and Engineering, Shandong University, Ji'nan 250061, China
  • Received:2011-12-28 Revised:2012-03-05 Online:2012-07-01 Published:2012-07-01
  • Contact: Cao Chong-De E-mail:caocd@nwpu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 51171152 and 50871088), the Foundation for Fundamental Research of Northwestern Polytechnic University, China (Grant No. JC201268), and the Fund of the State Key Laboratory of Solidification Processing, China (Grant No. SKLSP201202).

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摘要： (Fe50Co25B15Si10)80Cu20 ribbons are prepared by the single-roller melt-spinning method. A dual-layer structure consisting of a (Fe, Co)-rich amorphous phase and a Cu-rich crystalline phase forms due to metastable liquid phase separation before solidification. The magnetic hysteresis loops of the as-quenched and annealed samples are measured at room temperature. It is indicated that the coercivity of the ribbon is almost zero in as-quenched state. The crystallization leads to the increase of coercivity and decrease of saturation magnetization.

关键词: amorphous alloy, rapid solidification, liquid phase separation, magnetic property

Abstract: (Fe50Co25B15Si10)80Cu20 ribbons are prepared by the single-roller melt-spinning method. A dual-layer structure consisting of a (Fe, Co)-rich amorphous phase and a Cu-rich crystalline phase forms due to metastable liquid phase separation before solidification. The magnetic hysteresis loops of the as-quenched and annealed samples are measured at room temperature. It is indicated that the coercivity of the ribbon is almost zero in as-quenched state. The crystallization leads to the increase of coercivity and decrease of saturation magnetization.

Key words: amorphous alloy, rapid solidification, liquid phase separation, magnetic property

中图分类号:  (Theory of crystal structure, crystal symmetry; calculations and modeling)

  • 61.50.Ah
64.75.Op (Phase separation and segregation in alloying) 75.60.Ej (Magnetization curves, hysteresis, Barkhausen and related effects) 81.70.Pg (Thermal analysis, differential thermal analysis (DTA), differential thermogravimetric analysis)