1.
J Nanosci Nanotechnol
; 5(10): 1741-4, 2005 Oct.
Article
in English
| MEDLINE
| ID: mdl-16245539
ABSTRACT
Pure and well-crystallized Barium Strontium Titanate (BST) nanoparticles with controlled Ba/Sr ratio have been successfully synthesized under supercritical conditions using a continuous-flow reactor in the temperature range of 150-380 degrees C at 26 MPa. To synthesize the Ba0.6Sr0.4TiO3 composition, alkoxides, ethanol and water were used. The resulting nanopowder consists of fine particles with an average particle size of 23 nm. The results show that the Ba/Sr ratio of this powder can be accurately controlled from the composition of precursor. The characterization of the as-synthesized Ba0.6Sr0.4TiO3 solid-solution and the dielectric properties of the sintered ceramics are here reported.
Subject(s)
Barium Compounds/chemistry , Chromatography, Supercritical Fluid/methods , Crystallization/methods , Magnetics , Nanotubes/chemistry , Nanotubes/ultrastructure , Nitrates/chemistry , Strontium/chemistry , Barium Compounds/analysis , Electric Conductivity , Electrochemistry/methods , Materials Testing , Nanotechnology/methods , Nanotubes/analysis , Nitrates/analysis , Particle Size , Strontium/analysis , Surface Properties
2.
Phys Rev B Condens Matter
; 52(6): 4191-4197, 1995 Aug 01.
Article
in English
| MEDLINE
| ID: mdl-9981547
3.
Phys Rev B Condens Matter
; 49(12): 7868-7873, 1994 Mar 15.
Article
in English
| MEDLINE
| ID: mdl-10009548