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Effect of Particles Diameter on the Properties of Ni Group ER Fluid

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Abstract:

By means of structure analysis, mechanical properties test and microstructure observation，structure of Ni and Ni/TiO2 group particles have been obtained, the relationship among particSubscript textSubscript textle diameter，electric field strength and shear ratio of the properties of Ni/TiO2 group core-shell particles ER fluid have been researched. It has been found that with increasing particle diameter，the shear stress of ER fluid decreased, and with increasing shear ratio，the shear stress of ER fluid increased for same diameter particle and composition ER fluid. At same time, the smaller of particle diameter, the higher of ER properties such as shear stress, but there is a critical value for shear ratio, when shear ratio is larger than critical value, the properties of ER is nearly a value for same composition ER fluid. Particles chain of ER fluid under certain electric field is different with diversity Ni group Particles.

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Periodical:

Advanced Materials Research (Volumes 335-336)

Pages:

18-22

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.335-336.18

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Online since:

September 2011

Authors:

Suo Kui Tan, Xiao Ping Song, Li Qiao, Hong Yan Guo, Song Ji, Hong Zhao, Yan Song Zhang

Keywords:

Electrorheological Fluid, Ni Group Particle, Particle Diameter

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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