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 language | English |
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Pages | 1482-1485 |
Number of pages | 4 |
State | Published - 1997 |
Event | Proceedings of the 1997 55th Annual Technical Conference, ANTEC. Part 3 (of 3) - Toronto, Can Duration: 27 Apr 1997 → 2 May 1997 |
Conference
Conference | Proceedings of the 1997 55th Annual Technical Conference, ANTEC. Part 3 (of 3) |
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City | Toronto, Can |
Period | 27/04/97 → 2/05/97 |