Mössbauer and positron annihilation study of tin-vacancy interaction during the recovery of a dilute Al-Sn alloy

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Abstract

Tin-vacancy interaction was studied in a dilute Al(Sn) alloy, quenched from 613°C to -70°C and isochronally heat treated up to 250°C, using parallel positron lifetime and Mössbauer spectroscopy. For the interpretation of the results, a simple model was developed including tin-monovacancy tin-divacancy and tin-tetravacancy complexes as well as more complicated tin-vacancy agglomerates as important participants of the recovery process. According to this model, the changes observed in the positron lifetime and Mössbauer spectra can be explained by the gradual transformation of these complexes to simpler ones through transitional configurations. Only two lines could be observed in the Mössbauer spectra and the results suggest that a single vacancy has minor effect on the isomer shift of the line corresponding to tin in substitutional lattice site.

Original languageEnglish
Pages (from-to)389-396
Number of pages8
JournalHyperfine Interactions
Volume45
Issue number1-4
DOIs
Publication statusPublished - Mar 1989

Fingerprint

Positron annihilation
Tin
positron annihilation
Vacancies
tin
recovery
Recovery
interactions
Positrons
positrons
life (durability)
Isomers
isomers
Spectroscopy
heat
shift
configurations
spectroscopy

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics
  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Electronic, Optical and Magnetic Materials

Cite this

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title = "M{\"o}ssbauer and positron annihilation study of tin-vacancy interaction during the recovery of a dilute Al-Sn alloy",
abstract = "Tin-vacancy interaction was studied in a dilute Al(Sn) alloy, quenched from 613°C to -70°C and isochronally heat treated up to 250°C, using parallel positron lifetime and M{\"o}ssbauer spectroscopy. For the interpretation of the results, a simple model was developed including tin-monovacancy tin-divacancy and tin-tetravacancy complexes as well as more complicated tin-vacancy agglomerates as important participants of the recovery process. According to this model, the changes observed in the positron lifetime and M{\"o}ssbauer spectra can be explained by the gradual transformation of these complexes to simpler ones through transitional configurations. Only two lines could be observed in the M{\"o}ssbauer spectra and the results suggest that a single vacancy has minor effect on the isomer shift of the line corresponding to tin in substitutional lattice site.",
author = "Z. Homonnay and K. S{\"u}vegh and Cs Szeles and A. V{\'e}rtes",
year = "1989",
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pages = "389--396",
journal = "Hyperfine Interaction",
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TY - JOUR

T1 - Mössbauer and positron annihilation study of tin-vacancy interaction during the recovery of a dilute Al-Sn alloy

AU - Homonnay, Z.

AU - Süvegh, K.

AU - Szeles, Cs

AU - Vértes, A.

PY - 1989/3

Y1 - 1989/3

N2 - Tin-vacancy interaction was studied in a dilute Al(Sn) alloy, quenched from 613°C to -70°C and isochronally heat treated up to 250°C, using parallel positron lifetime and Mössbauer spectroscopy. For the interpretation of the results, a simple model was developed including tin-monovacancy tin-divacancy and tin-tetravacancy complexes as well as more complicated tin-vacancy agglomerates as important participants of the recovery process. According to this model, the changes observed in the positron lifetime and Mössbauer spectra can be explained by the gradual transformation of these complexes to simpler ones through transitional configurations. Only two lines could be observed in the Mössbauer spectra and the results suggest that a single vacancy has minor effect on the isomer shift of the line corresponding to tin in substitutional lattice site.

AB - Tin-vacancy interaction was studied in a dilute Al(Sn) alloy, quenched from 613°C to -70°C and isochronally heat treated up to 250°C, using parallel positron lifetime and Mössbauer spectroscopy. For the interpretation of the results, a simple model was developed including tin-monovacancy tin-divacancy and tin-tetravacancy complexes as well as more complicated tin-vacancy agglomerates as important participants of the recovery process. According to this model, the changes observed in the positron lifetime and Mössbauer spectra can be explained by the gradual transformation of these complexes to simpler ones through transitional configurations. Only two lines could be observed in the Mössbauer spectra and the results suggest that a single vacancy has minor effect on the isomer shift of the line corresponding to tin in substitutional lattice site.

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