OPTIMIZATION IN THE PREPARATION OF THE YBa2Cu307 COMPOUND USING BaC03 AND Ba02 AS REAGENTS

Authors

  • Angel Bustamante D. Laboratorio de Superconductividad.Facultad de Ciencias Físicas. Uni1•ersidad Nacional Mayor de San Marcos, Ap. Postal
  • Luis De Los Santos Y. Laboratorio de Superconductividad.Facultad de Ciencias Físicas. Uni1•ersidad Nacional Mayor de San Marcos, Ap. Postal. Departamento Académico de Física. Facultad de Ciencias Naturales y Matemáticas. Universidad Nacional del Callao, Ap. Postal 138. Callao, Perú
  • Jesus Flores S. Laboratorio de Superconductividad.Facultad de Ciencias Físicas. Uni1•ersidad Nacional Mayor de San Marcos, Ap. Postal
  • R. Lozano C. 'Facultad de Ciencias, Universidad Nacional San Antonio Abad del Cuzco, Cuzco, Perú
  • J. Palomino G. 'Facultad de Ciencias, Universidad Nacional San Antonio Abad del Cuzco, Cuzco, Perú
  • G. R. C. Cernicchiario Centro Brasileiro de Pesquisas Físicas, Rua Dr. Xavier Sigaud 150, 22290-180, Urca, Río de Janeiro, Brazil.

DOI:

https://doi.org/10.15381/rif.v7i01-02.8807

Keywords:

Superconductivity, Y123, RDX, SEM

Abstract

The traditional superconductor YBa2Cu307.¡; (Yl23) has an orthorhombic crystalline structure with spatial group Pmmm and its critica! temperature is 90 K. The literature reports the use of reagent BaC03 for the preparation by the solid state reaction which requires one calcination and two thermal treatments in oxygen flow at 950 oc. In this work we report the comparison in the preparation of Y123 using the Ba02 reagent as another possibility for preparation; in this case we have used only two thermal treatments in oxygen flow at 950 °C; therefore reducing the costs in preparation. The powder XRD pattem of samples prepared with Ba02 confirm a well crystallized phase an the diffraction lines of the main phase can be indexed with an orthorhombic unit cell. The ac susceptibility measurement in the range 5-100 K using a Quantum Design (SQUID) magnetometer for two samples confirms the superconductor behavior with critica! temperature Te91 K. The critica! temperatures for these systems were found taken account the derivatives of the susceptibility curves. Scanning Electron Microscopy (SEM) confirms the good behavior ofthe grains corresponding to both methods.

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Published

2004-12-31

Issue

Vol. 7 No. 01-02 (2004)

Section

Article

License

Copyright (c) 2004 Angel Bustamante D., Luis De Los Santos Y., Jesus Flores S., R. Lozano C., J. Palomino G., G. R. C. Cernicchiario

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How to Cite

OPTIMIZATION IN THE PREPARATION OF THE YBa2Cu307 COMPOUND USING BaC03 AND Ba02 AS REAGENTS. (2004). Revista De Investigación De Física, 7(01-02), 30-33. https://doi.org/10.15381/rif.v7i01-02.8807