H - Electricity – 01 – F
Patent
H - Electricity
01
F
H01F 1/44 (2006.01) A61M 1/10 (2006.01) H02K 1/02 (2006.01) H02K 33/02 (2006.01)
Patent
CA 2219503
It has been the task of the invention to form a magnetofluid with a high saturation magnetisation which has a saturation concentration that lies above 100 mT in order to be able to transmit higher forces. According to the invention, this is attained by stably dispersing cobalt and nanometer particles modified with mono-molecular adsorption layers in carrier liquids, whereby the volume concentration of the ferromagnetic component comes to 5 to 35 per cent, preferably to 15 to 30 %, and the volume concentration of the modified particles (naked particles with adsorption shell) comes up to 50 per cent by volume.
L'invention vise à créer un fluide magnétique présentant une aimantation à saturation élevée, dont la concentration de saturation est supérieure à 100 mT afin de permettre le transfert de forces supérieures. A cet effet, on forme des dispersions stables de particules nanométriques et de cobalt modifiées par des couches d'adsorption monomoléculaires, dans des fluides de support, la concentration volumique des composants ferromagnétiques étant comprise entre 5 et 35 %, de préférence entre 15 et 30 %, et la concentration volumique des particules modifiées (particules nues avec enrobage d'adsorption) atteignant jusqu'à 50 % en volume.
Buske Norbert
Hahndel Thomas
Muller Johannes
Nethe Arnim
Rehfeld Armin
Buske Norbert
Gowling Lafleur Henderson Llp
Hahndel Thomas
Muller Johannes
Nethe Arnim
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