Amira Samy Mohamed Saleh <br/><br/>
Electric and magnetic properties of Ni- Mg ferrite substituted rare earth elements /  
 الخواص الكهربية والمغناطيسية لنيكل - مغناسيوم فيريت المطعم بعناصر ارضية نادرة  
Amira Samy Mohamed Saleh ; Supervised M. A. Ahmed , Hussam Eldin Hamed Hassan 
 - Cairo :   Amira Samy Mohamed Saleh ,   2011 
 - 109 P. :   charts , facsimiles ;   25cm 
<br/><br/>Thesis (M.Sc.) - Cairo University - Faculty of Science - Department of Physics 
<br/><br/> In this work a series of samples were prepared by using standard ceramic technique. The prepared samples were classified into two groups. In the first group metal oxides were mixed in a stoichiometric ratio according to the formula Ni₁-  - Mg  Fe₂ O₄ where 0.0 x0.7 and well grounded in a planetary agate mortar for 3hs. The mixture wass pressed into pellets form using uniaxial press of pressure 1.9 x 10⁸ NM⁻² 
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<br/><br/><label>Subjects--Index Terms: </label>Earth elements  Ferrite substituted rare Ni- Mg