Abstract
This work studied the relationship between embedded particle volume fraction and magnetic particle orientation distribution in aligned 325 mesh barium hexaferrite (BHF) and polydimethylsiloxane (Sylgard 184; Dow Corning) magnetoactive elastomer (MAE) composites. BHF particles were aligned within the elastomer in the out-of-plane direction, as the material cured. Particle orientation distribution was defined herein by observations of the population of directions at which particle magnetizations resided; magnetization coincides with the physical crystallographic c-Axis of BHF. The work used results of vibrating sample magnetometry experiments on MAEs with increasing volume concentrations of embedded ferromagnetic particles (10-30 v/v%) to determine changing widths of analytical particle distribution functions used to describe the range of particle orientations. With over 80% confidence, results showed that MAE composites having the intermediate 15 v/v% had the highest degree of magnetic (and thereby physical) alignment as well as magnetic remanence.
Original language | English (US) |
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Pages (from-to) | 972-981 |
Number of pages | 10 |
Journal | Journal of Materials Research |
Volume | 34 |
Issue number | 6 |
DOIs | |
State | Published - Mar 28 2019 |
All Science Journal Classification (ASJC) codes
- General Materials Science
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering