In Situ Probing of Fast Defect Annealing in Cu and Ni with a High-Intensity Positron Beam
- Author(s)
- Bernd Oberdorfer, Eva-Maria Steyskal, Wolfgang Sprengel, Werner Puff, Philip Pikart, Christoph Hugenschmidt, Michael Zehetbauer, Reinhard Pippan, Roland Würschum
- Abstract
A high-intensity positron beam is used for specific in situ monitoring of thermally activated fast defect annealing in Cu and Ni on a time scale of minutes. The atomistic technique of positron-electron annihilation is combined with macroscopic high-precision length-change measurements under the same thermal conditions. The combination of these two methods as demonstrated in this case study allows for a detailed analysis of multistage defect annealing in solids distinguishing vacancies, dislocations, and grain growth.
- Organisation(s)
- Physics of Nanostructured Materials
- External organisation(s)
- Technische Universität Graz, Technische Universität München, Österreichische Akademie der Wissenschaften (ÖAW)
- Journal
- Physical Review Letters
- Volume
- 105
- No. of pages
- 4
- ISSN
- 0031-9007
- DOI
- https://doi.org/10.1103/PhysRevLett.105.146101
- Publication date
- 2010
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103018 Materials physics
- Portal url
- https://ucris.univie.ac.at/portal/en/publications/in-situ-probing-of-fast-defect-annealing-in-cu-and-ni-with-a-highintensity-positron-beam(91603e7c-18cb-45cf-bd2c-ac0a6105fa95).html