Hydrogen escape from vacancies in electrodeposited nickel: A positron annihilation study

C. Szeles, A. Vertes

Research output: Article

14 Citations (Scopus)

Abstract

The defect recovery of a nickel electrodeposit was studied in the 45-240 degrees C temperature range by positron lifetime spectroscopy. The initial recovery resulted in a large increase in the trapping rates of various lattice defects and was associated with the release of trapped hydrogen from vacancies. The observed lifetime changes were analysed in terms of a four-state positron trapping model. Employing a simple model of hydrogen thermal detrapping from vacancies the authors found EB=0.44+or-0.04 eV for the hydrogen-vacancy binding energy in nickel.

Original languageEnglish
Article number011
Pages (from-to)2031-2039
Number of pages9
JournalJournal of Physics F: Metal Physics
Volume17
Issue number10
DOIs
Publication statusPublished - dec. 1 1987

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy (miscellaneous)
  • Metals and Alloys

Fingerprint Dive into the research topics of 'Hydrogen escape from vacancies in electrodeposited nickel: A positron annihilation study'. Together they form a unique fingerprint.

  • Cite this