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Browsing by Author Truong, Thanh Trung

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  • 27.pdf.jpg
  • Article

  • Effect of Heat Treatment Conditions on the Properties of FePt Nanoparticles Produced by Sonochemistry

    • Authors: Truong, Thanh Trung; Nguyen, Thi Thanh Van; Nguyen, Hoang Nam; Nguyen, Hoang Luong (2015)

  • Magnetic properties of magnetic nanoparticles FePt prepared by sonochemistry were investigated. Upon annealing at temperature from 450ºC to 650ºC samples have ordered L10 structure and show hard magnetic properties. Influence of heat treatment conditions (annealing temperature, cooling rate) on the magnetic properties of the annealed samples has been studied.
  • 58.pdf.jpg
  • Article

  • Magnetic memory effect in FePd nanoparticles prepared by sonoelectrochemistry

    • Authors: Nguyen, Thi Thanh Van; Truong, Thanh Trung; Nguyen, Dang Phu; Nguyen, Hoang Nam; Nguyen, Hoang Hai (2012)

  • Magnetic memory effect was newly observed in hard magnetic FePd nanoparticles prepared by sonoelectrochemistry. The applied magnetic field was changed in defined protocols during the magnetic relaxation process and the magnetic memory effect occurs when the field changes are larger than the critical field change of around 25 Oe. This magnetic memory effect can be explained by the magnetic reversal processes in strong interaction systems. The width of the energy barrier distribution of these hard magnetic particles is related to the critical field change deduced from this study.
  • Magnetic-properties-of-CoxPt100-x-nanoparticles_2016_Journal-of-Science-Advanced-Materials-and-Devices.pdf.jpg
  • Article

  • Magnetic properties of CoxPt100 - x nanoparticles

    • Authors: Truong, Thanh Trung; Do, Thi Nhung; Nguyen, Thi Thanh Van; Nguyen, Hoang Nam; Nguyen, Hoang Luong (2016)

  • CoxPt100- x nanoparticles (x=50, 59, and 73) were prepared by the chemical reduction of Cobalt (II) chloride and Chloroplatinic acid, then ultrasonicated for 2 h. After annealing at various temperatures from 450 C to 700 C for 1 h, structure change was observed and samples show hard magnetic prop-erties which depend strongly on chemical composition and annealing temperature. The highest coer-civity value of 1.15 kOe was obtained at room temperature for sample with x =50 annealed at 500 C. Chemical reduction combined with ultrasound is a useful method to prepare CoPt nanoparticles
  • 63.pdf.jpg
  • Article

  • Temperature dependence of hard magnetic properties of FePd nanoparticles prepared by sonoelectrochemistry

    • Authors: Nguyen, Thi Thanh Van; Truong, Thanh Trung; Nguyen, Hoang Nam; Nguyen, Hoang Luong (2012)

  • Hard magnetic properties of magnetic nanoparticles FePd were investigated in dependence of temperature. Magnetic nanoparticles FePd were prepared from palladium acetate and iron acetate by sonoelectrochemistry, an useful technique to make metallic nanoparticles using ultrasound. Upon the annealing at 450°C to 650°C samples have ordered L10 structure and show hard magnetic properties with high coercivity up to 2.1 kOe at room temperature and increases to 2.43 kOe with decreasing temperature down to 2 K.

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Browsing by Author Truong, Thanh Trung

Jump to: 0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
or enter first few letters:  
Showing results 1 to 4 of 4
  • 27.pdf.jpg
  • Article

  • Effect of Heat Treatment Conditions on the Properties of FePt Nanoparticles Produced by Sonochemistry

    • Authors: Truong, Thanh Trung; Nguyen, Thi Thanh Van; Nguyen, Hoang Nam; Nguyen, Hoang Luong (2015)

  • Magnetic properties of magnetic nanoparticles FePt prepared by sonochemistry were investigated. Upon annealing at temperature from 450ºC to 650ºC samples have ordered L10 structure and show hard magnetic properties. Influence of heat treatment conditions (annealing temperature, cooling rate) on the magnetic properties of the annealed samples has been studied.
  • 58.pdf.jpg
  • Article

  • Magnetic memory effect in FePd nanoparticles prepared by sonoelectrochemistry

    • Authors: Nguyen, Thi Thanh Van; Truong, Thanh Trung; Nguyen, Dang Phu; Nguyen, Hoang Nam; Nguyen, Hoang Hai (2012)

  • Magnetic memory effect was newly observed in hard magnetic FePd nanoparticles prepared by sonoelectrochemistry. The applied magnetic field was changed in defined protocols during the magnetic relaxation process and the magnetic memory effect occurs when the field changes are larger than the critical field change of around 25 Oe. This magnetic memory effect can be explained by the magnetic reversal processes in strong interaction systems. The width of the energy barrier distribution of these hard magnetic particles is related to the critical field change deduced from this study.
  • Magnetic-properties-of-CoxPt100-x-nanoparticles_2016_Journal-of-Science-Advanced-Materials-and-Devices.pdf.jpg
  • Article

  • Magnetic properties of CoxPt100 - x nanoparticles

    • Authors: Truong, Thanh Trung; Do, Thi Nhung; Nguyen, Thi Thanh Van; Nguyen, Hoang Nam; Nguyen, Hoang Luong (2016)

  • CoxPt100- x nanoparticles (x=50, 59, and 73) were prepared by the chemical reduction of Cobalt (II) chloride and Chloroplatinic acid, then ultrasonicated for 2 h. After annealing at various temperatures from 450 C to 700 C for 1 h, structure change was observed and samples show hard magnetic prop-erties which depend strongly on chemical composition and annealing temperature. The highest coer-civity value of 1.15 kOe was obtained at room temperature for sample with x =50 annealed at 500 C. Chemical reduction combined with ultrasound is a useful method to prepare CoPt nanoparticles
  • 63.pdf.jpg
  • Article

  • Temperature dependence of hard magnetic properties of FePd nanoparticles prepared by sonoelectrochemistry

    • Authors: Nguyen, Thi Thanh Van; Truong, Thanh Trung; Nguyen, Hoang Nam; Nguyen, Hoang Luong (2012)

  • Hard magnetic properties of magnetic nanoparticles FePd were investigated in dependence of temperature. Magnetic nanoparticles FePd were prepared from palladium acetate and iron acetate by sonoelectrochemistry, an useful technique to make metallic nanoparticles using ultrasound. Upon the annealing at 450°C to 650°C samples have ordered L10 structure and show hard magnetic properties with high coercivity up to 2.1 kOe at room temperature and increases to 2.43 kOe with decreasing temperature down to 2 K.