FLUID WITH MAGNETIC VISCOSITY AND CLUTCH USING SAME
摘要
<p>This fluid with magnetic viscosity is provided with a magnetic particle mixture and a dispersion medium in which the magnetic particle mixture is dispersed. The magnetic particle mixture contains first magnetic particles and second magnetic particles. The first magnetic particles have an average particle size of 1 - 50 µm. The second magnetic particles have an average particle size of 20 - 200 nm and have a surface modified layer on the surface thereof. The proportion of second magnetic particles in the magnetic particle mixture is 2 - 10 wt%.</p>
