Effect of Carbonyl Iron on Dynamic Rheological Properties of Lithium-basedMagnetorheological Grease
HU Zhide1, ZHAO Hujun2, WANG Dawei2
1 Department of Military Facilities, Army Logistics University of PLA, Chongqing 401311; 2 Basic Department, Army Logistics University of PLA, Chongqing 401311
Abstract: The lithium-based magnetorheological greases (MRG) based on different carbonyl iron(CI) content were prepared. The effect of carbonyl iron on the dynamic rheological properties of MRG, such as linear viscoelastic range, magnetorheological effect, structure modulus, were investigated under oscillatory shear mode by Anton Paar MCR302.The influence of the interactions between high CI content and thickener on MR effect and sedimentation properties of MRG was discussed. The results show that MR effect of MRG increases with the increasing of CI content, the structure density and modulus of MRG significantly enhances. However, the chain forming of CI under low magnetic field was influenced by the skeleton structure of MRG. To amend the relationship between stability and fluidity of MRG, the soap fiber is still the key factor under the high CI content.
胡志德, 赵湖钧, 王大伟. 羰基铁粉对锂基磁流变脂动态流变行为的影响[J]. 材料导报, 2019, 33(Z2): 630-633.
HU Zhide, ZHAO Hujun, WANG Dawei. Effect of Carbonyl Iron on Dynamic Rheological Properties of Lithium-basedMagnetorheological Grease. Materials Reports, 2019, 33(Z2): 630-633.
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