The influence of the mechanical alloying on the structural and magnetic properties of nanostructured Ni63Fe13Mo4Ti20 alloy |
Paper ID : 1594-UFGNSM-FULL |
Authors: |
Leila Karimi1, Hooman Shokrollahi *2, Zahra Karimi3, Mohammad Shahjamali4 1Materials Science and Engineering Department, Shiraz University of Technology, 71555-313, Shiraz, Iran 2Materials Science and Engineering Department, Shiraz University of Technology, Modarres Blvd., Shiraz, IRAN 3Department of Materials Engineering, Institute of Mechanical Engineering, University of Tabriz, Tabriz 51666-16471, Iran 4School of Materials Science and Engineering, Nanyang Technological University, Block N4.1, 50 Nanyang Avenue, Singapore 639798, Singapore |
Abstract: |
In this work, the structural and magnetic properties of amorphous/nanocrystalline Ni63Fe13Mo4Ti20 powders prepared by mechanical alloying are investigated. Structural study was carried out by x-ray diffraction, high resolution transmission electron microscopy and scanning electron microscopy. At 120h, the Ni main peak is completely broad and the crystallite size is about 3 nm with a minute amount of Mo phase due to high melting point, hardness and low diffusion at low temperature of Mo in to Ni. At 190h the intensity of Ni main peak is higher and the Ti peak is creating again. The inter-atomic distance between transition metals (2.545 nm) and the peak shift (Δ2ө=1.08 degree) are maximum at 120h milling. The magnetic measurement of sample milled for 120h show low magnetic permeability and high operating frequencies up to 1000 Hz. |
Keywords: |
mechanical alloying, magnetic properties, nanostructured materials |
Status : Paper Accepted (Poster Presentation) |