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    董旭峰

    • 教授     博士生导师   硕士生导师
    • 主要任职:材料科学与工程学院副院长
    • 性别:男
    • 毕业院校:哈尔滨工业大学
    • 学位:博士
    • 所在单位:材料科学与工程学院
    • 学科:材料学
    • 办公地点:大连理工大学材料馆224
    • 联系方式:dongxf@dlut.edu.cn
    • 电子邮箱:dongxf@dlut.edu.cn

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    Electrorheological properties of carbon nanotube decorated TiO2 nanoparticles

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    论文类型:期刊论文

    发表时间:2017-06-01

    发表刊物:MATERIALS RESEARCH EXPRESS

    收录刊物:SCIE、Scopus

    卷号:4

    期号:6

    ISSN号:2053-1591

    关键字:electrorheological fluids; titanium oxide (TiO2) particles; multiwall carbon nanotubes (MCNTs); yield stress; leakage current density

    摘要:Titanium oxide (TiO2) particles decorated with multiwall carbon nanotubes (MCNTs) were synthesized and applied to prepare ER suspensions in this study. Compared with the bare TiO2 particles, the MCNTs decorated TiO2 particles have a rougher surface but little change in diameters. Thanks to the less severe aggregation and better dispersibility of the decorated particles, the MCNTs decorated TiO2 particles- based ER fluids present higher viscosity and higher shear stress than the bare TiO2 particles- based materials, indicating enhanced ER performance. In addition, the ER fluid containing the MCNTs decorated TiO2 particles present lower leakage current density and better anti-settling ability than that containing the bare particles. The MCNTs decorated TiO2 particlesbased ER fluids with enhanced ER performance, improved anti-sedimentation property, and lower leakage current density may be a promising ER material for practical applications.