Investigating Sedimentation and Rheological properties of Magnetorheological Fluids using various carrier fluids

被引：2
|
作者：
Aruna, M. N. [1 ]
Rahman, M. R. [1 ]
Joladarashi, Sharnappa [2 ]
Kumara, Hemantha [2 ]
机构：
[1] Natl Inst Technol, Dept Met & Mat Engn, Mangalore 575025, India
[2] Natl Inst Technol, Dept Mech Engn, Mangalore 575025, India
来源：
INTERNATIONAL CONFERENCE ON ADVANCES IN MATERIALS AND MANUFACTURING APPLICATIONS (ICONAMMA-2018) | 2019年 / 577卷
关键词：
Carbonyl iron; Fumed silica; Silicone; Light paraffin and Poly-alpha-olefin oils; COMPOSITE-PARTICLES; MICROSPHERES; PERFORMANCE; STABILITY; SILICA;
D O I：
10.1088/1757-899X/577/1/012049
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The present paper focuses on the preparation of Magnetorheological (MR) fluids samples with three types of carrier fluids are silicone, light paraffin and Poly-alpha-olefin (5, 30 and 400 cSt) viscosity oils with 25% volume fraction of carbonyl iron particles and 3% fumed silica as a thixotropic agent to improve sedimentation of the MR fluid. The morphology, magnetic saturation and phase of the carbonyl iron particles were investigated using field emission scanning electron microscopy (FESEM), super quantum interface interference device (SQUID), X-ray diffraction (XRD) respectively. The results found that obtained powder particles spherical in shape, and a high magnetic saturation of 270 (emu/gm) with the applied field of 15000 (Oe). The prepared MR fluids rheological properties were tested using Anton Paar MCR702 Twin drive rheometer fitted with a magneto-rheological module. Sedimentation stability examined using direct observation method.
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页数：7
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