The Synthesis and Characterization of Arc Melted Fe₁-_xAl_x Alloys

Sandeep Rajan, Rajni Shukla, Anil Kumar, Anupam Vyas, Ranjeet Kumar Brajpuriya

Department of Physics, Amity University Haryana, Gurgaon, India..
Department of Physics, Deenbandhu Chhotu Ram University of Science & Technology, Sonipat, India.

DOI: 10.4236/jamp.2013.12002                

Abstract

The paper presents correlation study on a series of Fe_1-xAl_x alloy samples prepared by arc melting. All the samples show crystalline structure, irrespective of the Al content and are textured mainly along (110) direction. The particle size decreases rapidly with x particularly after x > 0.3. The corresponding magnetic measurements were obtained at room temperature using a VSM, with a maximum applied field of 14 kO_e. The results show that the ferromagnetic state of the samples disappears with x, and becomes paramagnetic for alloys with x ≥ 0.4. It is also found that coercivity (H_c) and resistivity increase with x. The results were _interpreted in terms of continuous change in their electronic structure i.e. overlap of the electron wave functions of the magnetic atoms with the Al electron wave function.

Keywords

Transition Metal Aluminides; Magnetization and Electronic Properties

Conflicts of Interest

The authors declare no conflicts of interest.

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