The existence fields of the 11 known interlanthanide perovskites have been assessed as a function of temperature on the basis of experimental and literature data, and studied by means of the bond valence method using the software SPuDS. The role of geometrical factors in driving the enthalpic and entropic contributions to the Gibbs free energy of the phase is discussed, and a criterion is proposed to derive the formability likelihood of interlanthanide perovskites. The reliability of the software SPuDS has been checked by comparing the cell parameters and atomic distances optimized by the program to the ones experimentally obtained by high temperature in situ synchrotron X-ray diffraction performed on perovskitic LaErO3, LaTmO3 and LaYbO3

Stability of interlanthanide perovskites ABO3 (A equivalent to La-Pr; B equivalent to Y, Ho-Lu)

Artini C;
2016

Abstract

The existence fields of the 11 known interlanthanide perovskites have been assessed as a function of temperature on the basis of experimental and literature data, and studied by means of the bond valence method using the software SPuDS. The role of geometrical factors in driving the enthalpic and entropic contributions to the Gibbs free energy of the phase is discussed, and a criterion is proposed to derive the formability likelihood of interlanthanide perovskites. The reliability of the software SPuDS has been checked by comparing the cell parameters and atomic distances optimized by the program to the ones experimentally obtained by high temperature in situ synchrotron X-ray diffraction performed on perovskitic LaErO3, LaTmO3 and LaYbO3
2016
Istituto di Chimica della Materia Condensata e di Tecnologie per l'Energia - ICMATE
Istituto Superconduttori, materiali innovativi e dispositivi - SPIN
Ceramics
Crystal structure
Oxides
Phase transitions
X-ray diffraction
File in questo prodotto:
File Dimensione Formato  
prod_344583-doc_107963.pdf

solo utenti autorizzati

Descrizione: Stability of interlanthanide perovskites ABO3
Tipologia: Versione Editoriale (PDF)
Dimensione 1.07 MB
Formato Adobe PDF
1.07 MB Adobe PDF   Visualizza/Apri   Richiedi una copia
prod_344583-doc_189254.pdf

accesso aperto

Descrizione: Stability of interlanthanide perovskites ABO3
Tipologia: Versione Editoriale (PDF)
Dimensione 6.81 MB
Formato Adobe PDF
6.81 MB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.14243/334480
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 11
  • ???jsp.display-item.citation.isi??? 12
social impact