中国科学院重庆绿色智能技术研究院机构知识库

The magnetic particles of Magnetorheological fluid demand high coercive force, low specific gravity and high stability in a wide temperature range. Based on hereinbefore, this article summarizes the characteristics of various magnetic particles, development process and preparations including chemical and physical methods. It illustrates the relation between kinds of preparations and the structure and function of the magnetic particles. Besides, the effect of magnetic particles on magnetorheological fluids was analyzed. Finally it points the shortage of magnetorheological fluids nowadays and make a view on the preparations, function, structure and the process.

磁流变液中的磁性颗粒要求具有高矫顽力、低比重,在相当大的温度范围内保持较高的稳定性。基于以上,综述了各种磁性颗粒的特点、发展历程及其各种物理化学制备方法,阐述了各种制备方法与磁性颗粒结构及性能的关系,对比分析了各种磁性颗粒对磁流变液性能的影响,指出了目前存在的问题,展望了磁性颗粒的制备方法与结构、性能机理的发展趋势。