Published December 1996
| Version v1
Journal article
Oxygen nonstoichiometry and defects in Mn-doped Gd2Ti2O7+x
Description
The oxygen nonstoichiometry in Mn-doped Gd2Ti2O7, Gd2(Ti0.975Mn0.025)2O7+x, was measured electrochemically, as a function of temperature and oxygen partial pressure, with the aid of an oxygen titration cell. The analysis of the data shows that the defect equilibrium can be described by considering the dominant point defects to be neutral oxygen interstitials, doubly charged oxygen vacancies, and trivalent and quadrivalent Mn ions substituted in the Ti sites. The enthalpies for the formation of neutral oxygen interstitials and trivalent Mn are determined
Additional details
Publishing Information
- Journal Title
- Journal of the American Ceramic Society
- Journal Volume
- 79
- Journal Issue
- 12
- Journal Page Range
- p. 3078-3082.
- ISSN
- 0002-7820
- CODEN
- JACTAW
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 28027626
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- DATA ANALYSIS; DOPED MATERIALS; ELECTRIC CONDUCTIVITY; ENTHALPY; EXPERIMENTAL DATA; GADOLINIUM OXIDES; INTERSTITIALS; MANGANESE; MICROSTRUCTURE; OXYGEN; PARTIAL PRESSURE; POTENTIOMETRY; STOICHIOMETRY; TEMPERATURE DEPENDENCE; THEORETICAL DATA; TITANIUM OXIDES; VACANCIES
- Descriptors DEC
- CHALCOGENIDES; CHEMICAL ANALYSIS; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; DATA; ELECTRICAL PROPERTIES; ELEMENTS; GADOLINIUM COMPOUNDS; INFORMATION; MATERIALS; METALS; NONMETALS; NUMERICAL DATA; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; POINT DEFECTS; QUANTITATIVE CHEMICAL ANALYSIS; RARE EARTH COMPOUNDS; THERMODYNAMIC PROPERTIES; TITANIUM COMPOUNDS; TITRATION; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS; VOLUMETRIC ANALYSIS