TITLE

Particle size scaling of the giant electrorheological effect

AUTHOR(S)
Wen, Weija; Xianxiang Huang; Ping Sheng
PUB. DATE
July 2004
SOURCE
Applied Physics Letters;7/12/2004, Vol. 85 Issue 2, p299
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
This letter shows that by decreasing the size of the barium titanyl oxalate nanoparticles coated with urea, achieved through Rb doping, the giant electrorheological (GER) effect can attain a yield stress of >250 kPa. The shear thinning effect observed in parallel-plate sandwich configuration is also reported, and attributed to the centrifugal sedimentation effect of the inhomogeneous structures induced by applied electric field. In addition, it is found from experiments that the ER effect is very sensitive to the solid particles volume fraction.
ACCESSION #
13719744

 

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