Published October 15, 2008
| Version v1
Journal article
Structural characterization, stability and electrical properties of strontium niobate ceramic
Creators
- 1. School of Chemistry, Chemical Engineering and Materials, Heilongjiang University, Xuefu Road, Heilongjiang Harbin 150080 (China)
- 2. State Key Laboratory of Application of Rare Earth Resources, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin (China)
Description
The double perovskite oxide Sr2CrNbO6 has a cubic structure according to powder X-ray diffraction. After reducing in CO, Sr2CrNbO6 still exhibited a cubic structure refined by Rietveld technique. The TG analysis indicated that Sr2CrNbO6 loses 0.127 oxygen per formula unit from 400 to 700 deg. C in H2. The morphology and compositions of this ceramic did not significantly change on reduction. The conductivities in various atmospheres were varied from 0.015 to 0.039 S cm-1 at 800 deg. C. The conductivity exhibits a small oxygen partial pressure dependence in oxygen partial pressure range of 1-10-16 atm, and this may be interpreted to reflect slow equilibration kinetics with decreasing oxygen activity
Availability note (English)
Available from http://dx.doi.org/10.1016/j.matchemphys.2008.04.021Additional details
Identifiers
- DOI
- 10.1016/j.matchemphys.2008.04.021;
- PII
- S0254-0584(08)00218-6;
Publishing Information
- Journal Title
- Materials Chemistry and Physics
- Journal Volume
- 111
- Journal Issue
- 2-3
- Journal Page Range
- p. 335-340
- ISSN
- 0254-0584
- CODEN
- MCHPDR
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 40019768
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- CARBON MONOXIDE; CERAMICS; ELECTRICAL PROPERTIES; HYDROGEN; KINETICS; MORPHOLOGY; NIOBATES; OXYGEN; PARTIAL PRESSURE; PEROVSKITE; STABILITY; STRONTIUM COMPOUNDS; TEMPERATURE RANGE 0400-1000 K; TEMPERATURE RANGE 1000-4000 K; THERMAL GRAVIMETRIC ANALYSIS; X-RAY DIFFRACTION
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; CARBON COMPOUNDS; CARBON OXIDES; CHALCOGENIDES; CHEMICAL ANALYSIS; COHERENT SCATTERING; DIFFRACTION; ELEMENTS; GRAVIMETRIC ANALYSIS; MINERALS; NIOBIUM COMPOUNDS; NONMETALS; OXIDE MINERALS; OXIDES; OXYGEN COMPOUNDS; PEROVSKITES; PHYSICAL PROPERTIES; QUANTITATIVE CHEMICAL ANALYSIS; REFRACTORY METAL COMPOUNDS; SCATTERING; TEMPERATURE RANGE; THERMAL ANALYSIS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS
Optional Information
- Copyright
- Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.