摘要
磁性液体对外施磁场有特殊的敏感 ,外施磁场下的磁性液体的粘度大小和方向随外施磁场变化而使粘度呈各向异性 ,本文通过实验观察和计算分析发现磁性液体在外施磁场下弱絮凝行为表现异常明显 ,而且显示出特有的方向性 ,弱絮凝不同于絮凝 ,弱絮凝又不会使胶体系统失稳 ,与磁性液体内摩擦性能的实际应用相符 ,从而揭示了磁性液体在外施磁场作用下的方向性弱絮凝是产生粘度各向异性的机理。
The viscosity of a magnetic fluid in an external magnetic field presents anisotropy Through observing experiments, calculation and analysis, it is found in the article that weak flocculation of magnetic fluid in an external magnetic field is quite distinct Besides, the weak flocculation is directional and wont make the colloid system lose its stability This reveals the mechanism that a magnetic fluid in an external magnetic field causes viscosity anisotropy
出处
《润滑与密封》
CAS
CSCD
北大核心
2002年第6期32-34,共3页
Lubrication Engineering
基金
宁波市科技攻关项目 (0 0 12 0 0 11)
关键词
粘度
磁性液体
方向性弱絮凝
Viscosity Magnetic Fluid Directional Weak Flocculation
