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    STUDIA PHYSICA - Issue no. 1 / 2002  
         
  Article:   THE INFLUENCE OF HEAT TREATMENT ON STRUCTURAL AND ELECTRIC PROPERTIES OF BULK (BI,PB):2223 SUPERCONDUCTOR.

Authors:  A.V. POP, G. ILONCA, MARIANA POP, I.I. GERU.
 
       
         
  Abstract:  The (Bi,Pb)(Sr,Ba):2223 samples were prepared by using different sintering temperatures. The structural and phase purity was studied by X-ray diffraction and electrical properties by electrical transport measurements. The critical current density from electrical measurement agree by the results obtained from complex magnetic susceptibilities measurements as function of temperature and a. c. field amplitude. The increase of sintering temperature induce the decrease of transition width and the increase of intergranular critical current density Jcj and phase purity.  
         
     
         
         
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