粘度
流变学
材料科学
磁流变液
毛细管作用
剪切减薄
液态金属
表观粘度
液体粘度的温度依赖性
相对粘度
旋转粘度
旋转(数学)
混合(物理)
复合材料
还原粘度
机械
热力学
物理
数学
阻尼器
量子力学
几何学
标识
DOI:10.1007/978-981-19-2797-3_6-1
摘要
Viscosity is an important physical property of liquid metals, which is a research focus from both theoretical and practical perspectives. Currently, viscosity models are usually semiempirical models based on the Arrhenius formula, and key parameters are fitted from experimental data. The measurement methods for viscosity include capillary method, rotation method, oscillating cup method, and oscillating plate method. The principles of the latter two are similar. This chapter provides a detailed introduction to the measurement research of liquid metal viscosity using capillary method, rotation method, and oscillating cup method. The trend of liquid metal viscosity with time and temperature was studied. The effects of oxides and the addition of solid particles on the viscosity of liquid metal were analyzed. Finally, the viscosity characteristics of liquid metal magnetorheological fluid (a composite material) were studied by using the rotation method, and the performance of this liquid metal magnetorheological fluid was comprehensively tested and characterized. In addition, the influencing factors of rheology characteristics were studied, and compared with the shear thinning characteristics of liquid metal.
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