The Influence of Pressure on the Phase Stability of Nanocomposite Fe89Zr7B4 during Heating from Energy Dispersive X-ray Diffraction

Abstract

Nanocomposite materials consisting of small crystalline grains embedded within an amorphous matrix show promise for many soft magnetic applications. The influence of pressure is investigated by in situ diffraction of hammer milled Fe(89)Zr(7)B4 during heating through the chi - gamma Fe transition at 0.5, 2.2, and 4.9 GPa. The changes in primary and secondary crystallization onset are described by diffusion and the energy to form a critical nucleus within the framework of classical nucleation theory.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2013
Accession Number
ADA582014

Entities

People

  • A. M. Leary
  • C. Kenney-benson
  • Chanyeop Park
  • L. Mauger
  • M. E. Mchenry
  • M. S. Lucas
  • Paul R. Ohodnicki
  • S. J. Kernion

Organizations

  • California Institute of Technology

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Crystal Structure
  • Crystallization
  • Diffraction
  • Diffusion
  • Energy
  • Equations Of State
  • Grain Size
  • Materials
  • Materials Science
  • Measurement
  • Nanocomposites
  • Phase Transformations
  • Transition Temperature
  • Transitions
  • X Rays
  • X-Ray Diffraction

Fields of Study

  • Physics

Readers

  • Nanocomposite Materials Science
  • Powder metallurgy of Titanium alloys.
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.