Contributions à la synthèse et la caractérisation des composés d'YBa2Cu3O7 substitués par du Co

Gabriel Cǎruntu, Ioan Berdan, Daniela Cǎruntu, Jean Francis Marucco

Research output: Contribution to journalArticlepeer-review

Abstract

Single phase high-Tc superconductors YBa2Cu2,85Co0,15O7-δ have been prepared by solid state reaction in an alumina crucible. The product was heat treated in O2 at 300°C for 40 hours, then slowly cooled to room temperature. The samples were investigated by X-ray and thermogravimetric measurements. The X-ray measurements revealed that the compound has a tetragonal structure. The main effect of Co consists of a lower decrease of oxygen stoechiometry with temperature.

Original languageFrench
Pages (from-to)389-394
Number of pages6
JournalRevue Roumaine de Chimie
Volume42
Issue number5
StatePublished - May 1997

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