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Pressure effect on crystallization kinetics in Zr46.8Ti8.2Cu7.5Ni10Be27.5 bulk glass

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Authors:
  • Jiang, Jianzhong ;
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    Department of Physics, Technical University of Denmark
  • Gerward, Leif ;
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    Department of Physics, Technical University of Denmark
  • Xu, Y.S.
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    University of Bayreuth
DOI:
10.1063/1.1527227
Abstract:
Crystallization kinetics of a Zr46.8Ti8.2Cu7.5Ni10Be27.5 bulk glass in the supercooled liquid region have been investigated by performing in situ high-temperature and high-pressure x-ray diffraction measurements using synchrotron radiation. A pressure-time-temperature-transformation diagram, describing the onset of crystallization as a function of time during isothermal annealing under pressure, is presented. Different pressure dependences of crystallization kinetics in the temperature range for the glass have been observed and further be explained by a model of competing processes of the thermodynamic potential barrier of nucleation and the diffusion activation energy under pressure.
Type:
Journal article
Language:
English
Published in:
Applied Physics Letters, 2002, Vol 81, Issue 23, p. 4347-4349
Keywords:
AMORPHOUS-ALLOYS; DIFFUSION; NI; QUASI-CRYSTALS; SUPERCOOLED LIQUID REGION; PHASE-TRANSFORMATION; DEPENDENCE; METALLIC-GLASS
Main Research Area:
Science/technology
Publication Status:
Published
Review type:
Peer Review
Submission year:
2002
Scientific Level:
Scientific
ID:
11081132

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