Enhanced helium release by hydrogen isotope charging in polycrystalline nickel

San-Qiang Shi

Research output: Journal article publicationJournal articleAcademic researchpeer-review


Thermal desorption analysis and Scanning Electron Microscopy were used to study helium release behavior from nickel charged with or without hydrogen isotopes. It was found that hydrogen isotopes in the material may enhance helium release and induce helium blister formation for nickel pre-implanted with 10–30 keV, 8 x 1015 to 4 x 1017 He ions/cm2. This phenomenon is explained using a Hydrogen-Assisted Interbubble Fracture mechanism.
Original languageEnglish
Pages (from-to)247-256
Number of pages10
JournalRadiation Effects and Defects in Solids
Issue number3
Publication statusPublished - 1 Apr 1994
Externally publishedYes


  • blisters
  • fracture
  • helium
  • hydrogen isotopes
  • nickel
  • release

ASJC Scopus subject areas

  • Radiation
  • Nuclear and High Energy Physics
  • Materials Science(all)
  • Condensed Matter Physics


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