High Energy Product Developed from Cobalt Nanowires

Abstract

Cobalt nanowires with high aspect ratio have been synthesized via a solvothermal chemical process. Based on the shape anisotropy and orientation of the nanowire assemblies, a record high room-temperature coercivity of 10.6 kOe has been measured in Co nanowires with a diameter of about 15 nm and a mean length of 200 nm. As a result, energy product of the wires reaches 44 MGOe. It is discovered that the morphology uniformity of the nanowires is the key to achieving the high coercivity and high energy density. Nanowires of this type are ideal building blocks for future bonded, consolidated and thin film magnets with high energy density and high thermal stability.

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Document Details

Document Type
Technical Report
Publication Date
Jun 18, 2014
Accession Number
AD1056192

Entities

People

  • J. P. Liu
  • Kevin Elkins
  • Kinjal Gandha
  • Narayan Poudyal
  • Xubo Kiu

Organizations

  • University of Texas at Arlington

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Aspect Ratio
  • Chemical Synthesis
  • Chemistry
  • Diffraction
  • Ferromagnetic Materials
  • Films
  • High Energy
  • High Resolution
  • Magnetic Fields
  • Magnetic Materials
  • Magnetic Properties
  • Materials
  • Materials Processing
  • Materials Science
  • Nanotechnology
  • Permanent Magnetism
  • Thin Films

Fields of Study

  • Physics

Readers

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  • Reinforced Composite Materials
  • Superconducting Magnet Technology