Open AccessRELATIONS BETWEEN RHEOLOGICAL RESPONSES OF ER FLUIDS TO HIGH AC FIELD AND THEIR NON LINEAR DIELECTRIC PROPERTIES
Author(s) -
Qiu Zhi-Yong,
Sheng Pan,
Hu Lin,
Xiang Liu,
Zhou Lu-Wei
Publication year - 1997
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.46.314
Subject(s) - rheology , dielectric , materials science , electrorheological fluid , polarization (electrochemistry) , nonlinear system , shear stress , shear (geology) , viscoelasticity , composite material , condensed matter physics , electric field , physics , optoelectronics , chemistry , quantum mechanics
By measuring the dielectric properties,we have found experimentally that the studied ER fluids underwent interfacial polarization and showed nonlinear dielectric properties under high AC field.Considering the dynamical shear stress to be similar to the high field dielectric spectra of the ER fluids,we have established a relation of dynamical shear stress to the high field dielectric spectra of the ER fluids and obtained the lower response times of rheology for two ER fluids.furthermore,it is found the dynamical shear stress of the NaY zeolite ER fluids was related to the intensity of its nonlinear THG,and the humidity of a semiconductor polymer has no effect on the rheological response.The experiment findings have been illustrated.