Plastic Ferromagnetic composites for magnetic encoders (Articolo in rivista)

Type
Label
  • Plastic Ferromagnetic composites for magnetic encoders (Articolo in rivista) (literal)
Anno
  • 2005-01-01T00:00:00+01:00 (literal)
Alternative label
  • B. Martorana (1), G. Carotenuto (2), D. Pullini (1), K. Zvezdin (1), G. LaPeruta (2), P. Perlo (1) (2005)
    Plastic Ferromagnetic composites for magnetic encoders
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • B. Martorana (1), G. Carotenuto (2), D. Pullini (1), K. Zvezdin (1), G. LaPeruta (2), P. Perlo (1) (literal)
Pagina inizio
  • 394 (literal)
Pagina fine
  • 397 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 30 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • (1) Centro Ricerche FIAT; (2) Istituto per i Materiali Compositi e Biomedici (literal)
Titolo
  • Plastic Ferromagnetic composites for magnetic encoders (literal)
Abstract
  • Monodispersed spheres of ferromagnetic metals like iron, cobalt, and nickel can be synthesized on a micrometric and submicrometric scale by simply reducing their salts with boiling polyols. These magnetic particles embedded into a polymeric matric can be exploited for a number of technological applications (e.g., barcodes for magnetic encoders, magnetic storage media, electromagnetic shielding). The spherical shape of particles allows to prepare composites with high filling factors and very uniform filler distribution. In addition, because ferromagnetic particles show size-dependent magnetic properties (e.g., coercivity), the possibility to control the particle size is of primary importance. Here, we have found that monodispersed cobalt spheres of different sizes can be obtained by reduction of cobalt hydroxide with dyethyleneglucol. The average particle size was related to the precursor amount and it was widely varied by simply controlling this parameter. Disproportion in ethylene glycol medium of in-situ generated iron hydroxide (at 140°C) has been used to produce monodispersed iron nano-particles. (literal)
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