Indirect measurements of microstructure development in magnetorheological fluids

M. R. Jolly; J. W. Bender; Robert Timothy Mathers

doi:10.1142/s0217979299002113

Indirect measurements of microstructure development in magnetorheological fluids

M. R. Jolly, J. W. Bender, Robert Timothy Mathers

Penn State New Kensington

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

Abstract

Magneto-induction experiments have been devised to measure the microstructure response of quiescent magnetorheological (MR) fluids to an applied magnetic field. Unlike many previous techniques this measurement technique is well suited for MR fluids of high iron loading. Two distinct time scales of microstructure formation have been observed within the range of 10^-3to 10^-1seconds. These two time constants are thought to be associated with floe or chain formation and chain growth and migration. The dependency of the time response upon volume fraction, carrier viscosity and applied field is in partial agreement with contemporary theories and models of particle aggregation.

Original language	English (US)
Pages (from-to)	2036-2043
Number of pages	8
Journal	International Journal of Modern Physics B
Volume	13
Issue number	14-16
DOIs	https://doi.org/10.1142/s0217979299002113
State	Published - 1999

All Science Journal Classification (ASJC) codes

Statistical and Nonlinear Physics
Condensed Matter Physics

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AB - Magneto-induction experiments have been devised to measure the microstructure response of quiescent magnetorheological (MR) fluids to an applied magnetic field. Unlike many previous techniques this measurement technique is well suited for MR fluids of high iron loading. Two distinct time scales of microstructure formation have been observed within the range of 10-3to 10-1seconds. These two time constants are thought to be associated with floe or chain formation and chain growth and migration. The dependency of the time response upon volume fraction, carrier viscosity and applied field is in partial agreement with contemporary theories and models of particle aggregation.

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Indirect measurements of microstructure development in magnetorheological fluids

Abstract

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