Calorimetric studies of the stability of perovskites relevant to electroceramics

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Scopus citations

Abstract

The electrical, magnetic, optical, and transport properties of perovskites are controlled by their structure, which is in turn a consequence of atomic scale interactions that are reflected in their thermodynamic properties. High temperature oxide melt solution calorimetry is a versatile tool for determining such energetics. After an overview of the general thermodynamic factors determining perovskite stability, this contribution concentrates on the thermodynamics of three important systems. The first is BaTiO 3-SrTiO 3-CaTiO 3, where new enthalpy data help separate the effects of cation size and lattice distortion. The second is strontium-doped lanthanum ferrite-manganite (LSFO-LSMO), where defect chemistry, transition metal oxidation state, and magnetism all play important roles. The third is lead magnesium niobate - lead titanate (PMNPT), where short range order, symmetry changes, and competition of other phases (e.g. pyrochlore) are important considerations.

Original languageEnglish (US)
Title of host publicationIonic and Mixed Conducting Ceramics 8
Pages11-17
Number of pages7
Edition1
DOIs
StatePublished - 2012
Externally publishedYes
EventIonic and Mixed Conducting Ceramics 8 - 221st ECS Meeting - Seattle, WA, United States
Duration: May 6 2012May 10 2012

Publication series

NameECS Transactions
Number1
Volume45
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Conference

ConferenceIonic and Mixed Conducting Ceramics 8 - 221st ECS Meeting
Country/TerritoryUnited States
CitySeattle, WA
Period5/6/125/10/12

ASJC Scopus subject areas

  • Engineering(all)

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