Resistance force of a shock absorber using magnetic functional fluids containing both micrometer-sized and nanometer-sized magnetic particles

In this paper, properties of resistance force of a shock absorber using magnetic functional fluids having both micrometer- and nanometer-sized magnetic particles are reported. The resistance force can be controlled by changing strength of the magnetic field applied to the magnetic functional fluid. The resistance force is influenced by the mixture ratio of the micrometer- to the nanometer-sized magnetic particles.