Evaluation of a magnetic dispersion by interparticle interactions

Gokturk, Halit S.; Maki, Kazuo

doi:10.1016/0304-8853(95)00622-2

Journal of Magnetism and Magnetic Materials

1996

DOI: 10.1016/0304-8853(95)00622-2

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Evaluation of a magnetic dispersion by interparticle interactions

Halit S. Gokturk

Kazuo Maki

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Cited by 3 publications

References 21 publications

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Poly(phenylene sulfide) magnetic composites. I. Relations of percolation between rheology, electrical, and magnetic properties

Wu¹,

Wu²,

Gao³

et al. 2007

J Polym Sci B Polym Phys

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Poly(phenylene sulfide)/ferrosoferric oxide composites (PPS/Fe 3 O 4 ) with various loading levels were prepared by melt compounding. The microstructure of composites was investigated using SEM and XRD. The rheological, electrical and magnetic properties were characterized respectively by the parallel plate rheometer, high resistance meter, and magnetometer. The results reveal that the Fe 3 O 4 particles are well dispersed in the PPS matrix due to their nice affinity, which results in a weak strain overshoot at large amplitude oscillatory level. Both the rheological and the electrical responses of the composites show a typical percolation behavior. But the rheological percolation presents lower threshold (< 40 wt %) than that of electrical percolation ($ 50 wt %), which is attributed to the difference structure of the percolation network. The magnetic response, however, shows good linear relation with Fe 3 O 4 loadings, indicating that the physical percolation has little influence on the magnetic properties. This is mainly due to the yielded long-range magnetic interactions among Fe 3 O 4 particles in the applied field, which are far stronger than those nonmagnetic physical interactions accounting for percolation. V V C 2007 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 46: 233-243, 2008

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Poly(phenylene sulfide) magnetic composites. I. Relations of percolation between rheology, electrical, and magnetic properties

Wu¹,

Wu²,

Gao³

et al. 2007

J Polym Sci B Polym Phys

View full text Add to dashboard Cite

show abstract

Surface properties and particle interactions of metal magnetic powders

Gokturk¹,

Maki²

1997

Journal of Magnetism and Magnetic Materials

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Inception of shear flow for ferromagnetic dispersions

Piao¹,

Nikles²,

Lane³

et al. 2004

Journal of Rheology

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Evaluation of a magnetic dispersion by interparticle interactions

Cited by 3 publications

References 21 publications

Poly(phenylene sulfide) magnetic composites. I. Relations of percolation between rheology, electrical, and magnetic properties

Poly(phenylene sulfide) magnetic composites. I. Relations of percolation between rheology, electrical, and magnetic properties

Surface properties and particle interactions of metal magnetic powders

Inception of shear flow for ferromagnetic dispersions

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