SOLID-STATE EQUILIBRIUM IN THE DOUBLY SUBSTITUTED (TL, PB)(SR, BA)O-3SYSTEM

Authors
JORDA JL LEBBOU K GALEZ P ABRAHAM R
Citation
Jl. Jorda et al., SOLID-STATE EQUILIBRIUM IN THE DOUBLY SUBSTITUTED (TL, PB)(SR, BA)O-3SYSTEM, Journal of alloys and compounds, 256(1-2), 1997, pp. 34-39
Citations number
17
Categorie Soggetti
Chemistry Physical","Metallurgy & Metallurigical Engineering","Material Science
Journal title
Journal of alloys and compounds → ACNP
ISSN journal
09258388
Volume
256
Issue
1-2
Year of publication
1997
Pages
34 - 39
Database
ISI
SICI code
0925-8388(1997)256:1-2<34:SEITDS>2.0.ZU;2-M
Abstract
The phase relations in the doubly substituted TlxPb1-xSryBa1-yO3 syste m show a solubility range of the perovskite phase BaPbO3 from x=0, y=0 .5 to x=0.8, y=0. The crystallographic structure of the solid solution is well described with a tetragonal cell, I4/mcm space group. The ele ctrical conductivity shows a semiconducting behaviour with an activati on energy of 7.2 kJ mol(-1) in the temperature range 600-850 degrees C . The Sr-based perovskite SrPbO3, with orthorhombic Pbnm structure doe s not accept extended Tl or Ba substitutions. (C) 1997 Elsevier Scienc e S.A.