PREPARATION OF OXIDE SUPERCONDUCTING YBa2Cu3O7-x  BY SOL-GEL METHOD

• Autores: Bustamante, A., Osorio, A., González, J. C., Carhuancho, M., Salas, N., De Los Santos, L., De La Cruz, N., Díaz, A.
• Formato: artículo
• Fecha de Publicación: 2004
• Institución: Universidad Nacional Mayor de San Marcos
• Repositorio: Revistas - Universidad Nacional Mayor de San Marcos
• Lenguaje: español
• OAI Identifier: oai:ojs.csi.unmsm:article/4761
• Enlace del recurso: https://revistasinvestigacion.unmsm.edu.pe/index.php/quim/article/view/4761
• Nivel de acceso: acceso abierto
• Materia: Sol-Gel method; high temperature superconducting oxides; YBa2Cu3O7; Sol-Gel; óxidos superconductores de alta temperatura

We present the synthesis of YBa2Cu3O7-x superconductor oxide with critical temperature - 92 K, by Sol-Gel method. The synthesis of this superconducting compound was performed by using oxalate precursor solution which were prepared by dissolving stoichiometric mixtures of the Y(OOCCH3)•4H2O; Ba(OOCCH3)2 and Cu(OOCCH3)2•H2O acetates in an aqueous solution of oxalic acid, HCOO-COOH. The gel obtained was calcined at 860 oC and then fired at 920 oC in oxidizing atmosphere. The characterization of this superconducting ceramic was performed by x-ray diffraction, micro-Raman spectroscopy and SQUID techniques.