機能性磁気応答流体の開発とその応用 : 磁気混合流体(MCF)を中心として

概要

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Magnetic fluids (MFs) and magneto-rheological fluids (MRFs) are used in many engineering applications such as dampers, sensors, actuators, and controllers. In such applications, MFs can be used if their apparent viscosity and magnetic pressure are increased by application of a magnetic field. On the other hand, MRFs can be utilized with only characteristics of rheology, although their apparent viscosity and yield stress is increased by application of a magnetic field. However, the increase in the apparent viscosity of MFs is smaller than that of MRFs. The stability of the distribution of particles in a solvent of MF is better than that in a solvent of MRF. MCFs were developed to obtain a larger increase in the apparent viscosity under a magnetic field, and more stable distribution of particles while preserving the behavior of the material as a fluid. Since the characteristics of a MCF can be changed by the presence of compounded particles in the fluid and the clusters contained in the fluid are influenced by a magnetic field, they have a wider variety of engineering applications.
社団法人日本磁気学会の論文
2004-06-01