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

Journal Article · Sun May 01 00:00:00 EDT 1977 · Mater. Res. Bull.; (United States)

DOI:https://doi.org/10.1016/0025-5408(77)90121-0· OSTI ID:7087660

Perron-Simon, A; Von der Muehll, R; Ravez, J; Hagenmuller, P

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), Journal Name: Mater. Res. Bull.; (United States) Vol. 12:5; ISSN MRBUA
• Country of Publication: United States
• Language: French

Related Subjects

36 MATERIALS SCIENCE
360602* -- Other Materials-- Structure & Phase Studies
ALKALINE EARTH METAL COMPOUNDS
ALLOYS
BARIUM COMPOUNDS
CRYSTAL STRUCTURE
DIELECTRIC PROPERTIES
ELECTRICAL PROPERTIES
LITHIUM ADDITIONS
LITHIUM ALLOYS
NIOBATES
NIOBIUM COMPOUNDS
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
STRONTIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS