{"title":"A rheo-optical and materials approach to electrorheology","authors":"T. Jordan, W. Wong, M. Shaw","doi":"10.1109/CEIDP.1988.26378","DOIUrl":null,"url":null,"abstract":"A technique was developed to measure simultaneously the rheological and optical response of electrorheological (ER) fluids in combined shear and electric fields. Rheo-optical results for a commercial ER fluid exhibit microstructural changes occurring upon application of an electric field that are well within the time frame of the rheological response. It is noted that additional evidence is needed to verify or refute particle fibrilation as the fundamental underlying mechanism necessary for ER activity. Novel fluids in which the dispersed particles are microcapsules with a polystyrene wall and primarily water core have been prepared. These fluids are ER-active and will be used in the future to investigate interfacial and bulk polarization modes independently.<<ETX>>","PeriodicalId":149735,"journal":{"name":"1988. Annual Report., Conference on Electrical Insulation and Dielectric Phenomena","volume":"62 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1988-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"1988. Annual Report., Conference on Electrical Insulation and Dielectric Phenomena","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CEIDP.1988.26378","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
A technique was developed to measure simultaneously the rheological and optical response of electrorheological (ER) fluids in combined shear and electric fields. Rheo-optical results for a commercial ER fluid exhibit microstructural changes occurring upon application of an electric field that are well within the time frame of the rheological response. It is noted that additional evidence is needed to verify or refute particle fibrilation as the fundamental underlying mechanism necessary for ER activity. Novel fluids in which the dispersed particles are microcapsules with a polystyrene wall and primarily water core have been prepared. These fluids are ER-active and will be used in the future to investigate interfacial and bulk polarization modes independently.<>
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