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  • Trans Tech Publications, Ltd.  (6)
  • Shao, Hui Ping  (6)
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  • Trans Tech Publications, Ltd.  (6)
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  • 1
    Online Resource
    Online Resource
    Separation and Recycling Non-Magnetic Metals from the Shredded Automobiles Scrap with Magnetic Fluids
    Trans Tech Publications, Ltd. ; 2011
    In:  Advanced Materials Research Vol. 233-235 ( 2011-5), p. 470-475
    Details
    In: Advanced Materials Research, Trans Tech Publications, Ltd., Vol. 233-235 ( 2011-5), p. 470-475
    Abstract: It is important to separate the nonmagnetic metals from shredded automobiles scraps efficiently. The research relates in general to the separation of non-magnetic metals automatically on the basis of the different density of the magnetic fluids in a magnetic field. A water-based magnetic fluid was prepared with a chemical coprecipitation method by using ultrasonic in dispersing process. The magnetic field system was design and simulated by a finite element analysis software package, ANSYS 8.1. Separation tests were performed on the mixtures of aluminum, zinc, copper and lead with various scrap size and shape using the water-based magnetic fluids.
    Type of Medium: Online Resource
    ISSN: 1662-8985
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/AMR.233-235
    DOI: 10.4028/www.scientific.net/AMR.233-235.470
    Language: Unknown
    Publisher: Trans Tech Publications, Ltd.
    Publication Date: 2011
    detail.hit.zdb_id: 2265002-7
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    Online Resource
  • 2
    Online Resource
    Online Resource
    Preparation and Characterization of Biocompatible Magnetic Fluids
    Trans Tech Publications, Ltd. ; 2011
    In:  Advanced Materials Research Vol. 338 ( 2011-9), p. 384-387
    Details
    In: Advanced Materials Research, Trans Tech Publications, Ltd., Vol. 338 ( 2011-9), p. 384-387
    Abstract: Nano-Fe 3 O 4 magnetic particles were prepared by ultrasonic emulsion method and then were dispersed into water with chitosan or folate as surfactants for biocompatible water-based Fe 3 O 4 magnetic fluid. The cubic inverse spinel structure of Fe 3 O 4 nanoparticles were analyzed by X-ray diffraction technique (XRD). The saturation magnetizations of different magnetic particles were tested by a vibrating sample magnetometer (VSM). The morphologies of nanoparticles were observed by transmission electron microscope (TEM). The particle size was about uniform 10-20 nm, and their shape was approximately spherical. Meanwhile, dispersity was improved markedly after the surface modification. Comparing to magnetic fluid with chitosan modification, magnetic fluid was coated with chitosan and folate gets higher dispersity and stability when both of them have same saturation magnetizations.
    Type of Medium: Online Resource
    ISSN: 1662-8985
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/AMR.338
    DOI: 10.4028/www.scientific.net/AMR.338.384
    Language: Unknown
    Publisher: Trans Tech Publications, Ltd.
    Publication Date: 2011
    detail.hit.zdb_id: 2265002-7
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  • 3
    Online Resource
    Online Resource
    Preparation and Investigation of Magnetic Fluid with the Iron Oxide Spent Catalyst
    Trans Tech Publications, Ltd. ; 2011
    In:  Advanced Materials Research Vol. 356-360 ( 2011-10-07), p. 2079-2083
    Details
    In: Advanced Materials Research, Trans Tech Publications, Ltd., Vol. 356-360 ( 2011-10-07), p. 2079-2083
    Abstract: The water-based magnetic fluid (WMF) and oil-based magnetic fluid (OMF) were prepared successfully with the iron oxide spent catalyst by mechanochemical method. The iron oxide spent catalyst contains about 75% magnetite, 15% alkali metal and 10% ceria. The experimental purpose is to reclaim the spent catalyst and decrease the environment pollution. In this paper, the peculiarity of magnetic fluids was characterized by VSM, XRD, and TGA, etc. As a result, the saturated magnetizations of water-based and oil-based MFs are 22.09 emu/g and 30.02 emu/g, respectively. Their particle sizes are 15.11 nm and 16.07 nm, respectively. The prepared MFs would be used in separating low density metal from scrap, thereby decreasing the environmental pollution. Therefore, not only good magnetic fluid was prepared with the spent catalyst for the first time, but also the spent catalyst was recycled in an effective way to reduce environmental pollution.
    Type of Medium: Online Resource
    ISSN: 1662-8985
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/AMR.356-360
    DOI: 10.4028/www.scientific.net/AMR.356-360.2079
    Language: Unknown
    Publisher: Trans Tech Publications, Ltd.
    Publication Date: 2011
    detail.hit.zdb_id: 2265002-7
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  • 4
    Online Resource
    Online Resource
    Effect of Surfactants on Modifying the Surface of Magnetic Nanoparticles by Thermal Decomposition
    Trans Tech Publications, Ltd. ; 2011
    In:  Advanced Materials Research Vol. 335-336 ( 2011-9), p. 951-955
    Details
    In: Advanced Materials Research, Trans Tech Publications, Ltd., Vol. 335-336 ( 2011-9), p. 951-955
    Abstract: The nanosize magnetic particles were synthesized by thermal decomposition method with size distribution in the range of 10 ~ 30 nm. Different category and quantity of surfactants were used modifying the surface of the synthesized nanoparticles to control the particles’ shape and size. Multi-shapes, such as uniformity cubic, mixture of spherical and cubic, and the similar chick footmarks, were acquired in our experiment by different surfactants. It indicates the surfactant is a key factor for the size and shape of particles. The surfactants of PVP and oleylamine made the particle shape be uniformity cubic; However, the particle partly behaved as spherical shape in the case of using PVP and oleic acid as surfactants.
    Type of Medium: Online Resource
    ISSN: 1662-8985
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/AMR.335-336
    DOI: 10.4028/www.scientific.net/AMR.335-336.951
    Language: Unknown
    Publisher: Trans Tech Publications, Ltd.
    Publication Date: 2011
    detail.hit.zdb_id: 2265002-7
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    Online Resource
  • 5
    Online Resource
    Online Resource
    Fabrication of TiAl Alloy Powders by High-Energy Ball Milling and Low Temperature Sintering
    Trans Tech Publications, Ltd. ; 2011
    In:  Advanced Materials Research Vol. 338 ( 2011-9), p. 60-64
    Details
    In: Advanced Materials Research, Trans Tech Publications, Ltd., Vol. 338 ( 2011-9), p. 60-64
    Abstract: Ti/Al(Ti-50at.%Al) composite powders were prepared by high-energy ball milling followed by reaction sintering heat treatment at 550°C ~ 650°C for 2 hours. Mechanical alloying of TiAl had been performed in a high energy plant ball after different milling times and pre-sintered at different temperatures. The particle sizes of Ti/Al powders were analyzed by scanning electron microscopy (SEM). X-ray diffraction (XRD) analysis was performed for microstructural characterization. The results show that microstructural and morphological changes of high energy milled powder are studied as a function of milling time. Over 600°C TiAl powders are completely alloyed by being sintered at different temperatures. The powders are mainly composed of γ-TiAl as well as a small amount of AlTi3. The TiAl alloy powders of high energy ball mill/2h and sintered at 650°C/2h get plasma spheroidization. Spheroidizing powders with fine texture, γ-TiAl and AlTi 3 phase, particle size of 10~40μm are obtained.
    Type of Medium: Online Resource
    ISSN: 1662-8985
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/AMR.338
    DOI: 10.4028/www.scientific.net/AMR.338.60
    Language: Unknown
    Publisher: Trans Tech Publications, Ltd.
    Publication Date: 2011
    detail.hit.zdb_id: 2265002-7
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    Online Resource
  • 6
    Online Resource
    Online Resource
    The Influence Research of Cu〈sup〉2+〈/sup〉 on Cu〈sub〉X〈/sub〉Fe〈sub〉1-X〈/sub〉O•Fe〈sub〉2〈/sub〉O〈sub〉3〈/sub〉 Magnetic Fluids
    Trans Tech Publications, Ltd. ; 2011
    In:  Advanced Materials Research Vol. 236-238 ( 2011-5), p. 2004-2007
    Details
    In: Advanced Materials Research, Trans Tech Publications, Ltd., Vol. 236-238 ( 2011-5), p. 2004-2007
    Abstract: In order to increase the magnetic fluids in target-based cancer treatment, the Cu 2+ has been studied in this study. The Fe 3 O 4 and Cu 0.1 Fe 0.9 O•Fe 2 O 3 magnetic nanoparticles were prepared by ultrasonic emulsion method, and then disperse them into water with sodium dodecyl benzene sulfonate (SDBS) as surfactants to make magnetic fluids. The cubic inverse spinel structure of Fe 3 O 4 and Cu 0.1 Fe 0.9 O•Fe 2 O 3 nanoparticles were analyzed by X-ray diffraction technique (XRD).The saturation magnetization of Fe 3 O 4 and Cu 0.1 Fe 0.9 O•Fe 2 O 3 were 79.55 emu•g -1 and 75.90 emu•g -1 by vibrating sample magnetometer (VSM). The morphologies of nanoparticles were observed by transmission electron microscope (TEM). The particle size was uniform 10-20 nm, and their shape was approximately spherical. The Cu 0.1 Fe 0.9 O•Fe 2 O 3 magnetic particle functional group and the surface of particle coated with SDBS have been detected by Fourier Transform Infrared Spectroscopy (FT-IR). The magnetic fluids with a high saturation magnetization and stability have been prepared successfully in this study.
    Type of Medium: Online Resource
    ISSN: 1662-8985
    URL: Issue
    URL: Article
    DOI: 10.4028/www.scientific.net/AMR.236-238
    DOI: 10.4028/www.scientific.net/AMR.236-238.2004
    Language: Unknown
    Publisher: Trans Tech Publications, Ltd.
    Publication Date: 2011
    detail.hit.zdb_id: 2265002-7
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    Online Resource
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