PHASE-EQUILIBRIA IN THE BINARY TLO1.5-CUO, TLO1.5-BAO AND TERNARY TLO1.5-BAO-CUO SYSTEMS

Authors
JONDO TK OPAGISTE C JORDA JL COHENADAD MT SIBIEUDE F COUACH M KHODER AF
Citation
Tk. Jondo et al., PHASE-EQUILIBRIA IN THE BINARY TLO1.5-CUO, TLO1.5-BAO AND TERNARY TLO1.5-BAO-CUO SYSTEMS, Journal of alloys and compounds, 195(1-2), 1993, pp. 53-56
Citations number
8
Categorie Soggetti
Chemistry Physical","Metallurgy & Mining","Material Science
Journal title
Journal of alloys and compounds → ACNP
ISSN journal
09258388
Volume
195
Issue
1-2
Year of publication
1993
Pages
53 - 56
Database
ISI
SICI code
0925-8388(1993)195:1-2<53:PITBTT>2.0.ZU;2-9
Abstract
We present the phase diagrams of the TlO1.5-CuO, TlO1.5-BaO, and TlO1. 5-BaO-CuO systems under a pressure of 1 atm of oxygen which allowed us to prepare pure Tl2Ba2CuO6+/-x using Tl2Ba2O5 as precursor and the pr operties of quasibinary sections. The stoichiometric thallium cuprate was found to have the orthorhombic-type structure and was not supercon ducting. Accurate thermogravimetric measurements showed that the tetra gonal symetry is observed with at least 10% thallium deficiency.