Relative magnetic permeability of injection molded composites as affected from the flow induced orientation of ferromagnetic particles

Thomas Fiske, Halit S. Gokturk, Rahmi Yazici, Dilhan M. Kalyon

Research output: Contribution to conferencePaperpeer-review

2 Scopus citations

Abstract

Composite samples consisting of ferromagnetic asymmetric particles incorporated into a polyolefin binder were injection molded using custom designed molds which produced preferential fiber orientations. The degree of fiber orientation was significantly affected by the size of the opening (gate) to the mold, or by the mold geometry going from a edge-gated cylindrical to a center-gated disk cavity. Relative permeability value of the composite is increased when the fiber orientation and the applied field were parallel to one another. For instance, highly aligned composite samples exhibited up to 30% greater relative permeability values compared to those samples which exhibit fiber orientation distributions approaching a random distribution. To our knowledge this is the first study which provides data linking the fiber orientation distribution functions of ferromagnetic asymmetric particles to the relative magnetic permeability values of injection molded composites.

Original languageEnglish
Pages1482-1485
Number of pages4
StatePublished - 1997
EventProceedings of the 1997 55th Annual Technical Conference, ANTEC. Part 3 (of 3) - Toronto, Can
Duration: 27 Apr 19972 May 1997

Conference

ConferenceProceedings of the 1997 55th Annual Technical Conference, ANTEC. Part 3 (of 3)
CityToronto, Can
Period27/04/972/05/97

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