STRUCTURE, PHASE-TRANSITIONS AND OPTICAL-PROPERTIES OF PURE AND RARE-EARTH-DOPED BACEO3, SRCEO3 PREPARED BY INDUCTIVE MELTING

Authors
MELEKH BT EGOROV VM BAIKOV YM KARTENKO NF FILIN YN KOMPAN ME NOVAK II VENUS GB KULIK VB
Citation
Bt. Melekh et al., STRUCTURE, PHASE-TRANSITIONS AND OPTICAL-PROPERTIES OF PURE AND RARE-EARTH-DOPED BACEO3, SRCEO3 PREPARED BY INDUCTIVE MELTING, Solid state ionics, 97(1-4), 1997, pp. 465-470
Citations number
21
Categorie Soggetti
Physics, Condensed Matter","Chemistry Physical
Journal title
Solid state ionics → ACNP
ISSN journal
01672738
Volume
97
Issue
1-4
Year of publication
1997
Pages
465 - 470
Database
ISI
SICI code
0167-2738(1997)97:1-4<465:SPAOOP>2.0.ZU;2-7
Abstract
Fused crystalline BaCe(1-x)Ln(x)O(3-delta) (Ln = Y,Gd,Nd, 0 < x < 0.2) , and SrCe1-xDyxO3-delta (x = 0; 0.05) have been prepared by inductive melting. XRPD measurements have showed that annealed BaCeO3 was ortho rhombic. DSC spectra of BaCeO3 have showed two peaks at 533 K and 630 K. Phase transitions in the range 270-900 K were not revealed in BaCe0 .8Y0.2O3-delta, BaCe0.9Nd0.1O3-delta and SrCeO3. For comparison cerami c BaCeO3:Gd was considered. Raman spectra of BaCeO3 have confirmed the X-ray data on the orthorhombic symmetry for annealed samples. Eu-lumi nescence study of BaCeO3:(Y + Eu) has confirmed the octahedral oxygen enviroment of trivalent dopant ions.