中文

Journal of Applied Sciences ›› 1983, Vol. 1 ›› Issue (3): 221-226.

• Articles • Previous Articles     Next Articles

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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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.