Journal of East China Normal University(Natural Sc ›› 2007, Vol. 2007 ›› Issue (1): 113-118.

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Mechanism of Interface Reaction and Magnetic Properties of Fe-TiN Prepared by High Energy Ball Milling (Chinese)

ZHOU Xiong-tu, JIANG Dong-mei, MA Xue-ming, SHI Wang-zhou

  1. Department of Physics, East China Normal University, Shanghai 200062, China
  • Received:2005-09-21 Revised:2006-03-02 Online:2007-01-25 Published:2007-01-25
  • Contact: SHI Wang-zhou

Abstract: Mechanism of interface reaction and magnetic properties of Fe-TiN system attained by high energy ball milling were studied using Xray diffraction (XRD), Mssbauer spectroscopy and vibrating sample magnetometer(VSM). The results showed that during ball milling, a small amount of Fe atoms diffuse
into the interface of TiN grains to form a paramagnetic interface phase TiN(Fe)and the diffusion of Fe atoms saturates with increasing milling time. Meanwhile, Ti and N atoms, as a result of the decomposition of fractional TiN,
dissolve into the crystal lattices of Fe to form a ferromagnetic solid solution of
Fe (Ti,N). The solid solution of Ti and N atoms make the saturation magnetization
of powder samples rise first and then fall with the amount of Ti and N atoms increasing.

Key words: Fe-TiN, interface reaction, magnetic property, high energy ball milling, Fe-TiN, interface reaction, magnetic property

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