Hakim , M. A. and Hoque , S. M. (2004) Effect of structural parameters on soft magnetic properties of two phase nanocrystalline alloy of Fe73.5Cu1Ta3Si13.5B9. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS , 284 . pp. 395-402. ISSN 0304-8853
Full text is not hosted in this archive but may be available via the Official URL, or by requesting a copy from the corresponding author.
Official URL: http://www.sciencedirect.com/science?_ob=ArticleUR...
Abstract
The rapidly quenched Fe73.5Cu1Ta3Si13.5B9 alloy has been annealed in a controlled way in the temperature range 400–700°C for 1 h in order to study the effect of structural parameters such as lattice parameter, grain size and silicon content of the nanocrystalline Fe(Si) grains on the initial permeability. Temperature and frequency dependence of initial permeability of amorphous and devitrified toroid shaped samples have been measured. Enhancement of Curie temperature of the amorphous alloys has been observed due to the irreversible structural relaxation. With the appearance of nanocrystalline phase the Curie temperature of the residual amorphous phase gradually decreases with the increase of annealing temperature. Temperature dependence of permeability of annealed samples in the temperature range of 500–575°C exhibits superparamagnetic and superferromagnetic behavior depending upon the volume fraction of nanograins.
| Item Type: | Article |
|---|---|
| Subjects: | Physical Science > Nanophysics Physical Science > Nano objects Material Science > Nanochemistry Material Science > Nanostructured materials |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Physics Faculty of Engineering, Science and Mathematics > School of Chemistry |
| ID Code: | 9721 |
| Deposited By: | JNCASR |
| Deposited On: | 19 Oct 2010 09:45 |
| Last Modified: | 19 Oct 2010 09:45 |
Repository Staff Only: item control page
