Radiation-enhanced diffusion in amorphous Ni-Zr alloys

Research output: Contribution to journalArticle

Abstract

Radiation-enhanced diffusion of Cu and Au tracer impurity atoms during Kr+ irradiation has been measured in amorphous Ni50Zr50 and Ni35Zr65 alloys in the range 80-573 K. At low temperatures, the spreading of the thin impurity layers was due to ion beam mixing and was independent of temperature. Above 400 K, the diffusion coefficient of Cu in Ni50Zr50 shows Arrhenius behavior with an apparent activation enthalpy of 0.55 eV, and it depends on the square root of dose rate. The radiation-enhanced diffusion coefficient is greater for Cu than Au and is also larger in the Zr-rich alloy.

Original languageEnglish (US)
Pages (from-to)10383-10386
Number of pages4
JournalPhysical Review B
Volume37
Issue number17
DOIs
StatePublished - Jan 1 1988

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diffusion coefficient
Radiation
impurities
radiation
Impurities
tracers
enthalpy
ion beams
activation
dosage
Ion beams
Dosimetry
irradiation
Enthalpy
Chemical activation
Irradiation
atoms
Atoms
Temperature
temperature

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Radiation-enhanced diffusion in amorphous Ni-Zr alloys. / Averback, R. S.; Hahn, H.

In: Physical Review B, Vol. 37, No. 17, 01.01.1988, p. 10383-10386.

Research output: Contribution to journalArticle

Averback, R. S. ; Hahn, H. / Radiation-enhanced diffusion in amorphous Ni-Zr alloys. In: Physical Review B. 1988 ; Vol. 37, No. 17. pp. 10383-10386.
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