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1
artículo
The superconductor YBa2Cu3O7 compound was synthesized by the sol-gel technique. The pattern of X-ray diffraction showed that the ceramic oxide crystallized in an orthorhombic structure. The structure analysis was performed by allowing Rietveld refinement obtain network parameters, the atomic positions, occupancy of atomic sites, identify dollies and spurious secondary compound and the percentage content of the latter
2
artículo
The superconductor YBa2Cu3O7 compound was synthesized by the sol-gel technique. The pattern of X-ray diffraction showed that the ceramic oxide crystallized in an orthorhombic structure. The structure analysis was performed by allowing Rietveld refinement obtain network parameters, the atomic positions, occupancy of atomic sites, identify dollies and spurious secondary compound and the percentage content of the latter
3
artículo
On the base of the ceramic superconductor YBa2Cu307 obtained by SOL-GEL process whose critic temperature reached was 92 K. A new doped structure has been synthesized with calcium, in which the Ytrio has been replaced by the calcium in stoichiometry proportion Y:Ca = 0,8: 0,2 . The precursors obtained with the help of oxalate stoichiometry have been modified with calcium nitrate. The obtained matrize was treated thermally 860 ºC and 880 ºC. The characterization has been carrie through the technique of X Rays Diffraction obtained showed that the obtained materials present a high crystalline grade and a good correspondence in their crystalline structures corresponding to each superconductivity phase.
4
artículo
On the base of the ceramic superconductor YBa2Cu307 obtained by SOL-GEL process whose critic temperature reached was 92 K. A new doped structure has been synthesized with calcium, in which the Ytrio has been replaced by the calcium in stoichiometry proportion Y:Ca = 0,8: 0,2 . The precursors obtained with the help of oxalate stoichiometry have been modified with calcium nitrate. The obtained matrize was treated thermally 860 ºC and 880 ºC. The characterization has been carrie through the technique of X Rays Diffraction obtained showed that the obtained materials present a high crystalline grade and a good correspondence in their crystalline structures corresponding to each superconductivity phase.