Effect of insertion of lithium ions on the dielectric properties of the Ba/sub 0/ /sub 725/Sr/sub 1/ /sub 775/Nb/sub 5/O/sub 15/ phase with the tungsten quadratic bronze structure (in French)
Journal Article
·
· Mater. Res. Bull.; (United States)
A new solid solution with formula Ba/sub 0/./sub 725/Sr/sub 1/,/sub 775/Li/sub x/Nb/sub 5-x/Ti/sub x/O/sub 15/ (0.02 less than or equal to x less than or equal to 1) has been prepared by insertion of lithium in the lattice of Ba/sub 0/./sub 725/Sr/sub 1/./sub 775/Nb/sub 5/O/sub 15/. It is isostructural with the tetragonal tungsten bronzes and has a ferroelectric behaviour. Crystallographic and dielectric studies show that lithium is intercalated preferably in the 15 or 12 coordination sites when 0.02 less than or equal to x less than or equal to 0.50 and then with coordination 9 when 0.50 less than x less than or equal to 1. Pyroelectric and electrooptic applications are expected for such materials.
- Research Organization:
- Univ., Bordeaux
- OSTI ID:
- 7087660
- Journal Information:
- Mater. Res. Bull.; (United States), Vol. 12:5
- Country of Publication:
- United States
- Language:
- French
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Related Subjects
36 MATERIALS SCIENCE
BARIUM COMPOUNDS
CRYSTAL STRUCTURE
NIOBATES
STRONTIUM COMPOUNDS
DIELECTRIC PROPERTIES
LITHIUM ADDITIONS
ALKALINE EARTH METAL COMPOUNDS
ALLOYS
ELECTRICAL PROPERTIES
LITHIUM ALLOYS
NIOBIUM COMPOUNDS
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
TRANSITION ELEMENT COMPOUNDS
360602* - Other Materials- Structure & Phase Studies
BARIUM COMPOUNDS
CRYSTAL STRUCTURE
NIOBATES
STRONTIUM COMPOUNDS
DIELECTRIC PROPERTIES
LITHIUM ADDITIONS
ALKALINE EARTH METAL COMPOUNDS
ALLOYS
ELECTRICAL PROPERTIES
LITHIUM ALLOYS
NIOBIUM COMPOUNDS
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
TRANSITION ELEMENT COMPOUNDS
360602* - Other Materials- Structure & Phase Studies