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应用科学学报 ›› 1983, Vol. 1 ›› Issue (3): 221-226.

• 论文 • 上一篇    下一篇

柱晶Fe-Cr-Co-Mo-Ti和柱晶Alnico 5的Mössbauer效应、铁磁共振和矫顽力的研究

李德新1, 林文桂1, 李国栋1, 严勇2, 邵涵如2, 陈明燕3, 王惠娟3   

  1. 1. 中国科学院物理研究所;
    2. 中国科学院高能物理研究所;
    3. 北京冶金研究所
  • 收稿日期:1981-11-21 出版日期:1983-09-30 发布日期:1983-09-30

STUDY OF MÖSSBAUER EFFECT, FERROMAGNETIC RESONANCE AND COERCIVE FORCE OF COLUMNAR CRYSTALLINE Fe-Cr-Co-Mo-Ti AND ALNICO 5 PERMANENT MAGNET

LI DEXIN1, LIN WENGUI1, LI GUODONG1, YAN YONG2, SHAO HANRU2, CHEN MINGYAY3, WANG HUIJUAN3   

  1. 1. Institute of Physics, Academia Sinica;
    2. Institute of High-Energy Physics, Academia Sinica;
    3. Beijing Metallurgical Research Institute
  • Received:1981-11-21 Online:1983-09-30 Published:1983-09-30

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摘要： 本文用Mossbauer效应(室温和低温)和铁磁共振方法研究了Fe-Cr-Co-Mo-Ti柱晶的磁矩取向,并与Alnico5柱晶进行了比较.柱晶样品的取向效果较好,可以获得高的矫顽力Ho由室温~77K,观察得到Ho随温度降低而减小.这是由于材料中的顺磁相在低温时变成铁磁相,使两相的饱和磁化强度差减小的结果.反磁化机制比较符合单畴转动模型.

Abstract: The orientation of magnetic moments of columnar crystalline (CO) Fe-Cr-Oo-Mo-Ti permanent magnet is investigated by means of Mossbauer effect (ME) at room and low temperatures, and by means of ferromagnetic resonance (FME.) at room temperature (RT). The result is compared with that of CC Alnioo 5. The orientation of CC samples is better, and higher coercive force Ho may be obtained. The Ho variation between RT and 77K is measured, with Ho reduced with decreasing temperatures. This fact is duo to the transition to ferromagnetic phase from paramagnetic phase and to the reduction of the difference of magnetization. It appears that the mechanism of reverse magnetization is agreement with the model of rotation of single-domains.