Efficient Extraction of Iron Metallic Nanopowders from Thin Films Prepared by Physical Vapor Deposition Technique

Abstract

In this work, the effects of different extraction parameters on the particle size of the nanopowders extracted from metallic iron thin film samples were studied. These films were deposited by the dc magnetron sputtering, which is one of the physical vapor deposition (PVD) techniques. These nanopowders were obtained by the conjunctional freezing-assisted ultrasonic extraction method. Results showed that extraction parameters such as freezing temperature, ultrasonic frequency and application time are very effective in determining the nanoparticle size, which is very important for many applications and uses of highly-pure nanomaterials and nanostructures.