华东师范大学学报(自然科学版) ›› 2007, Vol. 2007 ›› Issue (1): 113-118.

• 物理学 电子学 • 上一篇    下一篇

高能球磨Fe-TiN间界面反应及磁性

周雄图， 蒋冬梅， 马学鸣， 石旺舟
  

  1. 华东师范大学 物理系，上海 200062
  • 收稿日期:2005-09-21 修回日期:2006-03-02 出版日期:2007-01-25 发布日期:2007-01-25
  • 通讯作者: 石旺舟

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

摘要： 利用X射线衍射(XRD)结合穆斯堡尔谱和宏观磁性测量研究了高能球磨FeTiN体系的界面反应机制及界面磁性.结果表明：通过高能球磨，部分Fe原子扩散到TiN晶粒中形成顺磁相TiN(Fe)，Fe原子的扩散溶解随球磨时间增加而饱和.同时，部分TiN在球磨过程中分解成Ti和N并溶入Fe晶格形成铁磁性的Fe(Ti，N)固溶体.Ti和N原子溶入后使样品饱和磁化强度产生变化.随固溶量的增加，饱和磁化强度先增大后减小.

关键词: 高能球磨, Fe-TiN, 界面反应, 磁学性质, 高能球磨, Fe-TiN, 界面反应, 磁学性质

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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