Preparation of Magnetorheological Fluid and Study on Its Rheological Properties

Abstract

The present paper focuses on preparation and process of the magnetorheological (MR) fluid whose carrier fluid is silicone-based oil and its additive is the commercial grease with different concentration of iron particles. General properties of MR fluid are discussed and rheological properties like shear rate, shear stress, viscosity of MR fluid can be found by using cone-and-plate sensor system-type rheometer. The result shows that shear stress as a function of magnetic flux density and viscosity does not strictly scale with iron loading.

Liquid-crystalline ferroferric oxide nanocomposites: self-assembly and magnetorheological effects

“…However, silicone oils can be used instead due to a broader operating temperature range and more feasible compatibility issues with other materials. 44 in Fig. 8e.…”

“…However, silicone oils can be used instead due to a broader operating temperature range and more feasible compatibility issues with other materials. 44 Fig. 8 shows the dispersion stability of 5 wt% Fe 3 O 4 @PILC-1, Fe 3 O 4 @PILC-4 and Fe 3 O 4 -containing MR fluids using silicone oil as a carrier liquid.…”

Analysis of Rheological Properties of MR Fluid Based on Variation in Concentration of Iron Particles

“…Preparation of magneto-rheological fluid is explained in article (Kolekar, 2014). First, some amount of (18 wt%) fine lithium grease is added to the carrier oil and then it is dissolved with the electric stirrer in room temperature.…”

Design, fabrication and testing of a magnetorheologic fluid braking system for machine tool application

“…Carrier fluid is the major constituent of MR fluid (50-80% by weight). The commonly used carrier liquids are mineral, synthetic and silicone oil [44,45]. With its properties such as low viscosity, temperature stability, compatibility with other materials of the device and rheologic properties, silicone oil with viscosity of 210 cp and density of 0.99 g/ml was used as a carrier fluid for the synthesis.…”