Contamination from the Milling Atmosphere and its Effect on Magnetic Properties of Fe/Al Nanopowders

Jani S¹, Sudeesh V², Nehra J³, Lakshmi N⁴ and Brajpuriya R^5*

¹Department of Applied Physics, Amity School of Pure and Applied Sciences, Amity University Madhya Pradesh, Gwalior 474005, India

²Department of Physics, Nirmalagiri College, Nirmalagiri 670 701, Kerala, India

³Department of Physics, Central University of Rajasthan 305816, Rajasthan, India

⁴Department of Physics, Mohanlal Sukhadia University, Udaipur 313 001, Rajasthan, India

⁵Amity Institute of Nanotechnology, Amity University Haryana, Gurgaon 122413, India

*Corresponding Author : Ranjeet Brajpuriya
Department of Physics, Amity University Haryana, Manesar, Gurgoan, India
Tel: +91 8527769007
E-mail: ranjeetbjp@yahoo.co.in

Received: March 24, 2018 Accepted: May 11, 2018 Published: May 17, 2018

Citation: Jani S, Sudeesh V, Nehra J, Lakshmi N, Brajpuriya R (2018) Contamination from the Milling Atmosphere and its Effect on Magnetic Properties of Fe/ Al Nanopowders. J Nanomater Mol Nanotechnol 7:2. doi: 10.4172/2324-8777.1000243

FeAl nanosystems had been prepared by means of high energy ball milling for 5, 15, and 20 h in air environment to observe mechanochemical reactions with atmospheric oxygen and its effect on bulk magnetic properties. The detailed analysis of the corresponding magnetic properties of oxidized Fe-Al powders was carried out by means of two complementary techniques: vibrating sample magnetometer (VSM) and Mossbauer spectroscopy. At 8 nm particle size, along with bcc Fe/Al peaks, the traces of the Fe-O, Fe2O3 phases also have been observed. The large differences in values of bulk magnetic properties can be ascribed to the presence of nonmagnetic Fe oxides at different levels which deteriorates bulk magnetization (i.e>70% of an unmilled) of the prepared nanosystems effectively.