磁性流体是一种强磁性液体,是用 100以下的F3O4等磁性微粒稳定地分散在水和油中形成的磁性胶体溶液,在重力和磁场的作用下也不发生凝聚和沉淀. 1965年美国的Papell首先研制成功磁性流体.在七十年代后期,美、日、苏和英等国的研究工作迅速发展,美国还成立了专门生产磁性流体和开 Magnetic fluid is a kind of ferromagnetic liquid, which is a magnetic colloidal solution formed by stably dispersing magnetic particles such as F3O4 of 100 or less in water and oil, and does not coagulate and precipitate under the action of gravity and magnetic field. Papell first developed a successful magnetic fluid.In the late seventies, the United States, Japan, Britain and Britain and other countries of rapid development of the research, the United States also set up a special production of magnetic fluid and open