Effect of Partial Substitution of Ag and Sr on Structural Properties of the Superconductor Compound Tl2-xAgxBa2¬-ySryCa2Cu3O10+ at High Temperatures
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Abstract
The sample of high temperature superconductivity of type Tl-2223
( Tl2 Ba2Ca2Cu3O10+d ) have been prepared by using solid state reaction method . The samples have been prepared at the sintering temperature (840o C) for (24h ) at average heating rate
( 2o C/ Min ) and hydrostatic pressure (8 ton / cm2).
The partial substitution effect of(Ag) in (Tl) and ( Sr ) in ( Ba ) in the compound as
(Tl2Ba2-ySryCa2Cu3O10+d ) has been investigated where (x= y= 0.1, 0.2 and 0.3). The X-Ray diffraction patterns were obtained , the compound has been characterized as ( Tl-2223 ) having tetragonal structure with lattice parameters ( a=b=3.91 ) and (c= 33.54 for ( x=y=0 ). Also the X-Ray diffraction data showed that the structure of the compound is tetragonal phase in the rang
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