PERMANENT BIREFRINGENCE OF FERROFLUID PARTICLES TRAPPED IN A SILICA MATRIX

Authors
CHAPUT F BOILOT JP CANVA M BRUN A PERZYNSKI R ZINS D
Citation
F. Chaput et al., PERMANENT BIREFRINGENCE OF FERROFLUID PARTICLES TRAPPED IN A SILICA MATRIX, Journal of non-crystalline solids, 160(1-2), 1993, pp. 177-179
Citations number
17
Categorie Soggetti
Material Science, Ceramics
Journal title
Journal of non-crystalline solids → ACNP
ISSN journal
00223093
Volume
160
Issue
1-2
Year of publication
1993
Pages
177 - 179
Database
ISI
SICI code
0022-3093(1993)160:1-2<177:PBOFPT>2.0.ZU;2-5
Abstract
Magnetic gamma-Fe2O3 (maghemite) grains have been incorporated in soli d silica gel matrices under a static magnetic field which orientated a t the magnetic particles during gelation. When the field is switched o ff, dried gel samples exhibit permanent birefringence corresponding to the locking of oriented magnetic particles.