Bubble formation in Zr alloys under heavy ion implantation

Luciano Pagano, Arthur T. Motta, Robert C. Birtcher

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations


We report here the results of a study conducted to examine the effect of Kr ion irradiation on bubble formation in Zr alloys. We used the HVEM/Tandem facility at Argonne National Laboratory to irradiate several Zr alloys, including Zircaloy-2 and Zircaloy-4, at temperatures from 300 to 800 C and to doses up to 2 × 1016ion.cm-2. Both in-situ irradiation of thin foils as well as irradiation of bulk samples with an ion implanter were used in this study. For the thin foil irradiations, a distribution of small bubbles in the range of 30-100 angstrom was found, at all temperatures with the exception of the Cr-rich Valloy where bubbles of 130 angstrom were found. The irradiation of bulk samples at high temperature (700-800 C) produced large faceted bubbles (up to 300 angstrom) after irradiation to 2 × 1016ion.cm-2. The results are examined in the context of existing models for bubble formation and growth in other metals.

Original languageEnglish (US)
Pages (from-to)201-206
Number of pages6
JournalMaterials Research Society Symposium - Proceedings
StatePublished - Jan 1 1996
EventProceedings of the 1995 MRS Fall Meeting - Boston, MA, USA
Duration: Nov 26 1995Dec 1 1995

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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