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题名:
Fabrication of magnetite-coated attapulgite magnetic composite nanoparticles and their magnetorheology 
作者:
Kim, Yu Hyun,Sim, Bomi,Choi, Hyoung Jin 
作者单位: Inha Univ, Dept Polymer Sci & Engn, Inchon 402751, South Korea 
发表形式: 期刊 
发表载体: Colloids and Surfaces, A. Physicochemical and Engineering Aspects 
年卷期:  
发表时间: 2016 
总页数:
分类号:  
关键词: Magnetorheological fluid,Magnetite,Magnetic particle,Attapulgite,Clay, 
正文语种: eng 

文摘:

  We synthesized magnetite (Fe3O4) -coated attapulgite clay magnetic composite particles via a co precipitation method and investigated their magneto-responsive characteristics. Along with examination of their physical characteristics using transmission electron microscopy, Fourier-transform infrared spectroscopy, X-ray diffraction, and vibrating sample magnetometer patterns, the magneto-responsive properties of the fabricated magnetic composite particles when dispersed in non-magnetic carrier fluid were examined using a rotational rheometer under various external magnetic field strengths. The flow curves revealed a typical Bingham fluid behavior under applied magnetic field, and the slope of the dynamic yield stress as a function of magnetic field strength was 1.5. (C) 2016 Elsevier B.V. All rights reserved. 

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