Observation of second-phase particles in bulk zirconium alloys using synchrotron radiation

Kenneth T. Erwin, Olivier Delaire, Arthur T. Motta, Yong S. Chu, Derrick C. Mancini, Robert C. Birtcher

Research output: Contribution to journalArticlepeer-review

35 Scopus citations


To further advance the mechanistic understanding of microstructural evolution in zirconium alloys for high burnup applications, it is important to obtain a quantitative measurement of the volume fractions of second-phase precipitates present in the bulk alloys as a function of the heat treatment and irradiation fluence. In this work, X-ray diffraction from a synchrotron radiation source was used to identify and follow the growth kinetics of second-phase particles in zirconium alloys. The high energy flux, energy resolution and signal-to-noise ratio of this light source allowed us to study the very small (<0.2-0.4%) precipitate volume fractions in these alloys. A preliminary calculation of the precipitate volume fraction as a function of cumulative annealing parameter (CAP) showed the precipitate volume fraction increases rapidly above 10-19 h and saturates at about 10-17 h.

Original languageEnglish (US)
Pages (from-to)299-304
Number of pages6
JournalJournal of Nuclear Materials
Issue number3
StatePublished - Apr 2001

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • General Materials Science
  • Nuclear Energy and Engineering


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