| 초록 |
Among various soft magnetic magnetorheological (MR) materials, Fe3O4 has been extensively used as a magnetize-able particle for the MR fluid due to its soft magnetic property and high magnetic permeability. However, sedimentation of the Fe3O4 particles due to the large density mismatch with the medium oil as serious drawbacks. Therefore, considerable efforts such as Polymer-coating technology have been made to prevent Fe3O4 particles in contact with each other and to decrease the density of Fe3O4 to improve the sedimentation stability In this experiment, Fe3O4/PS particles were fabricated through the pickering-emulsion. After pickering, foam the Fe3O4/PS particles to decrease the density. |
