Published February 1992
| Version v1
Journal article
Effect of addition of La2O3 in the grain boundaries of a material based on BaTiO3
Description
Results of an impedance study of capacitors of a material based on BaTiO3 with variable concentrations of La are presented. It is observed that variation in tanδ is related to variation in covalency of the added La at the grain boundaries. The tanδ is temperature dependent. The discussion brings out that added La controls the electron density at the grain boundaries. (author). 12 refs., 2 figs
Additional details
Publishing Information
- Journal Title
- Pramana
- Journal Volume
- 38
- Journal Issue
- 2
- Journal Page Range
- p. 167-170.
- ISSN
- 0304-4289
- CODEN
- PRAMCI
INIS
- Country of Publication
- India
- Country of Input or Organization
- India
- INIS RN
- 24005463
- Subject category
- S36: MATERIALS SCIENCE; S36: MATERIALS SCIENCE;
- Descriptors DEI
- BARIUM OXIDES; CAPACITORS; DOPED MATERIALS; ELECTRIC IMPEDANCE; ELECTRON DENSITY; FREQUENCY DEPENDENCE; GRAIN BOUNDARIES; LANTHANUM OXIDES; QUANTITY RATIO; TEMPERATURE DEPENDENCE; TITANIUM OXIDES
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; BARIUM COMPOUNDS; CHALCOGENIDES; CRYSTAL STRUCTURE; ELECTRICAL EQUIPMENT; ENERGY STORAGE SYSTEMS; EQUIPMENT; IMPEDANCE; LANTHANUM COMPOUNDS; MATERIALS; MICROSTRUCTURE; OXIDES; OXYGEN COMPOUNDS; RARE EARTH COMPOUNDS; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS