Effect of silicone oil viscosity on the properties of magnetorheological fluids
XINHUA LIU1,2,
LIFENG WANG1,*
,
HE LU1,
DONGDONG WANG1,
QINGQING CHEN1,
ZHONGBIN WANG1,*
Affiliation
- School of Mechanical and Electrical Engineering, China University of Mining & Technology, Xuzhou, China
- The State Key Laboratory of Fluid Power Transmission and Control, Zhejiang University, Hangzhou, China
Abstract
Aiming to study the effect of silicone
oil viscosity on the properties of silicone oil based magnetorheological fluids (MRF),
exper iment materials, preparation process and test methods are elaborated, and f ive kinds of MRF samples with different
silicone oil viscosity are prepared T he microstructures of both carbonyl iron particles and coated carbonyl iron particles are
observed by s canning electron microscope (SEM). Moreover, test experiments are carried out and the effect of silicone oil
viscosity on sedimentation stability, zero field viscosity and shear yield stress is discussed. Experimental results show that
the silicone oil vis cosity has a significant influence on sedimentation stability and zero field viscosity of MRF, but little impact
on shear yield stress of MRF. Furthermore, the MRF with silicone oil viscosity 350cst and 500cst is best for the requirement
of engineering app lications..
Keywords
Magnetorheological fluids, Silicone oil viscosity, Sedimentation stability, Zero field viscosity, Shear yield stress.
Citation
XINHUA LIU, LIFENG WANG, HE LU, DONGDONG WANG, QINGQING CHEN, ZHONGBIN WANG, Effect of silicone oil viscosity on the properties of magnetorheological fluids, Optoelectronics and Advanced Materials - Rapid Communications, 9, 1-2, January-February 2015, pp.226-230 (2015).
Submitted at: March 27, 2014
Accepted at: Jan. 21, 2015