Crystallization Kinetics of Two Metallic Glasses by Mossbauer Spectroscopy.

Abstract

In this study, Mossbauer spectroscopy was used to examine thermal aging of two metallic glasses. Fe80B20 was isothermally annealed at 573, 604, 611, and 626 K; and fe80P6.5C3.5B10 was annealed at 614, 716, and 744 K. The activation energy of Fe80B20, determined from the growth of alpha-Fe crystals, was 0.256 + 0.006 MJ/mole. The projected lifetime of this glass, based on the onset of crystallization, is 400 years. No quantitative data were obtained for Fe80P6.5C3.5B10; however, based on the higher temperature required for crystallization, it is expected to have a longer lifetime. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Mar 07, 1981
Accession Number
ADA100818

Entities

People

  • Denis Eugene Beller

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Capillary Electrophoresis
  • Command And Control
  • Crystallization
  • Crystals
  • Energy
  • Engineering
  • Heat Of Activation
  • High Temperature
  • Kinetics
  • Magnetic Fields
  • Magnetic Properties
  • Materials
  • Materials Laboratories
  • Measurement
  • Plastic Explosives
  • Spectroscopy

Fields of Study

  • Physics

Readers

  • Materials Science and Engineering.