creating knowledge for future



High Quality


Scholarly Publishing
                CAREER NETWORK  
         
World's one of the largest Research
Career Network
Benefits
  •     Academic & Industry jobs
  •     Project funding
  •     Visiting faculty positions
  •     Visiting scientist positions
  •     Invited talks
  •     and more...  
   
Register FREE  
 
 
 
 
 
  Global Journal of Physical Chemistry. Volume 2, Issue 2 (2011) pp. 56-60
  Research Article Free Article
 
Structural and magnetic properties of the mechanically alloyed FeCo-based mixtures
  S. Allega, S. Azzazaa, J.J. Suñolb  
     
a Laboratoire de Magnétisme et de Spectroscopie des Solides (LM2S) Département de Physique, Université Badji-Mokhtar-Annaba B.P. 12, Annaba 23000, Algérie
b Département de Fisica, Universitat de Girona, Campus de Montillivi, Girona 17071, Spain

   
  Abstract  
  Structural and magnetic properties of the mechanically alloyed Fe50Co50 and (Fe50Co50)62Nb8B30 powder mixtures were studied by X-ray diffraction and vibrating sample magnetometry. For the Fe50Co50 powders, a bcc a-Fe(Co) solid solution with a lattice parameter close to 0.2861 nm is achieved after 24 h of milling. The magnetization increases gradually with milling time and saturates after 24 h (Ms = 215 emu/g). The soft magnetic properties (low values of coercivity, Hc, and squarness ratio Mr/Ms) point out that small magnetic particles are typically single domain. Nevertheless, for the (Fe50Co50)62Nb8B30 powders, a nanocomposite structure is achieved after 125 h of milling. The saturation magnetization decreases rapidly during the first hours of milling to about 15.24 emu/g and remains nearly constant on further milling. The coercivity, Hc, value is about 160 Oe.
     
  Keywords  
  Nanostructured materials; FeCo-based alloys; Mechanical alloying; X-ray diffraction; Coercivity; Saturation magnetization  
     
   
   
   
   
     

  © 2016 Cognizure