Thick film magnetic nanoparticulate composites and method of manufacture thereof
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United States of America Patent
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Feb 3, 2009
Grant Date -
Apr 7, 2005
app pub date -
May 14, 2004
filing date -
Oct 26, 2000
priority date (Note) -
Expired
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Abstract
Thick film magnetic/insulating nanocomposite materials, with significantly reduced core loss, and their manufacture are described. The insulator coated magnetic nanocomposite comprises one or more magnetic components, and an insulating component. The magnetic component comprises nanometer scale particles (about 1 to about 100 nanometers) coated by a thin-layered insulating phase. While the intergrain interaction between the immediate neighboring magnetic nanoparticles separated by the insulating phase provides the desired soft magnetic properties, the insulating material provides high resistivity, which reduces eddy current loss.
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