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Journal of Applied Physics / Volume 107 / Issue 9 / ARTICLES / Structural, Mechanical, Thermodynamic, and Optical Properties of Condensed Matter

J. Appl. Phys. 107, 093507 (2010); http://dx.doi.org/10.1063/1.3407503 (5 pages)

Giant electrorheological fluid comprising nanoparticles: Carbon nanotube composite

Jiaxing Li, Xiuqing Gong, Shuyu Chen, Weijia Wen, and Ping Sheng

Department of Physics and Institute of Nano Science and Technology, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong

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(Received 10 February 2010; accepted 12 March 2010; published online 3 May 2010)

We have fabricated suspensions exhibiting the giant electrorheological (GER) effect comprising nanoparticles—multiwall carbon nanotubes (MCNTs) composite particles dispersed in silicone oil. This type of GER fluids display dramatically enhanced antisedimentation characteristic without sacrificing the yield stress. The nanoparticles-nanotubes composites were fabricated by modifying the coprecipitation method with MCNTs and urea-coated barium titanyl-oxylate (BTRU) nanoparticles as the components. The composite solid particles are denoted MCNT-BTRU. In the best cases, stabilized suspensions with MCNT-BTRU particles dispersed in silicone oil have been maintained for several months without any appreciable sedimentation being observed. Both the sedimentary and rheological properties of the MCNT-BTRU suspension were systematically studied and compared with their BTRU counterparts. Yield stress as high as 194 kPa was obtained in the MCNT-BTRU suspensions. The MCNT-BTRU based GER fluids, with their antisedimentation characteristic, may have broad engineering applications.

© 2010 American Institute of Physics

Article Outline

  1. INTRODUCTION
  2. EXPERIMENT
    1. Materials, preparation, and characterization of MCNT-BTRU and BTRU
    2. Characterization of rheological properties
  3. RESULTS AND DISCUSSION
    1. Sedimentation property of MCNT-BTRU
    2. Yield stress measurements
  4. CONCLUSIONS

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KEYWORDS and PACS

Keywords

carbon, electrorheology, elemental semiconductors, nanocomposites, precipitation, sedimentation, silicon, suspensions, yield stress

PACS

  • 47.65.Gx

    Electrorheological fluids

  • 83.60.La

    Viscoplasticity; yield stress

  • 81.16.-c

    Methods of micro- and nanofabrication and processing

  • 82.70.Kj

    Emulsions and suspensions

  • 81.30.Mh

    Solid-phase precipitation

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3407503

PUBLICATION DATA

ISSN

0021-8979 (print)  
1089-7550 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
    W. M. Winslow, J. Appl. Phys. 20, 1137 (1949)JAPIAU000020000012001137000001.

    R. Tao and J. M. Sun, Phys. Rev. Lett. 67, 398 (1991).

    T. Chen, R. N. Zitter, and R. Tao, Phys. Rev. Lett. 68, 2555 (1992).

    L. C. Davis, Appl. Phys. Lett. 60, 319 (1992)APPLAB000060000003000319000001.

    L. C. Davis, J. Appl. Phys. 72, 1334 (1992)JAPIAU000072000004001334000001.

    H. Ma, W. Wen, W. Y. Tam, and P. Sheng, Phys. Rev. Lett. 77, 2499 (1996).

    W. Y. Tam, G. H. Yi, W. Wen, H. Ma, M. M. T. Loy, and P. Sheng, Phys. Rev. Lett. 78, 2987 (1997).

    W. Wen, N. Wang, H. Ma, Z. Liu, W. Y. Tam, C. T. Chan, and P. Sheng, Phys. Rev. Lett. 82, 4248 (1999).

    W. Wen, X. Huang, and P. Sheng, Appl. Phys. Lett. 85, 299 (2004)APPLAB000085000002000299000001.

    C. Shen, W. Wen, S. Yang, and P. Sheng, J. Appl. Phys. 99, 106104 (2006)JAPIAU000099000010106104000001.


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