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Annealing behaviour of ion tracks in olivine, apatite and britholite

Afra, B. ; Lang, M. ; Bierschenk, T. ; Rodriguez, M. D. ; Weber, W. J. ; Trautmann, C. ; Ewing, R. C. ; Kirby, N. ; Kluth, P. (2014)
Annealing behaviour of ion tracks in olivine, apatite and britholite.
In: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 326
doi: 10.1016/j.nimb.2013.10.072
Article, Bibliographie

Abstract

Ion tracks were created in olivine from San Carlos, Arizona (95% Mg2SiO4), apatite (Ca5(PO4)3(F,Cl,O)) from Durango, Mexico, and synthetic silicates with the apatite structure: Nd8Sr2(SiO4)6O2 and Nd8Ca2(SiO4)6O2 using 1.6 and 2.2 GeV Au ions. The morphology and annealing behaviour of the tracks were investigated by means of synchrotron based small angle X-ray scattering in combination with ex situ annealing. Tracks in olivine annealed above ∼400 °C undergo a significant change in track radius due to recrystallisation of the damage tracks. At temperatures higher than 620 °C, the scattering images indicate fragmentation of the track cylinders into smaller subsections. Ion tracks were annealed at elevated temperatures up to 400 °C in the Durango and Ca-britholite, and up to 560 °C in Sr-britholite. While there was a significant change in the track radii in the Durango apatite, tracks in the two synthetic samples remained almost unchanged.

Item Type: Article
Erschienen: 2014
Creators: Afra, B. ; Lang, M. ; Bierschenk, T. ; Rodriguez, M. D. ; Weber, W. J. ; Trautmann, C. ; Ewing, R. C. ; Kirby, N. ; Kluth, P.
Type of entry: Bibliographie
Title: Annealing behaviour of ion tracks in olivine, apatite and britholite
Language: English
Date: 1 May 2014
Publisher: Elsevier Science Publishing
Journal or Publication Title: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
Volume of the journal: 326
DOI: 10.1016/j.nimb.2013.10.072
Abstract:

Ion tracks were created in olivine from San Carlos, Arizona (95% Mg2SiO4), apatite (Ca5(PO4)3(F,Cl,O)) from Durango, Mexico, and synthetic silicates with the apatite structure: Nd8Sr2(SiO4)6O2 and Nd8Ca2(SiO4)6O2 using 1.6 and 2.2 GeV Au ions. The morphology and annealing behaviour of the tracks were investigated by means of synchrotron based small angle X-ray scattering in combination with ex situ annealing. Tracks in olivine annealed above ∼400 °C undergo a significant change in track radius due to recrystallisation of the damage tracks. At temperatures higher than 620 °C, the scattering images indicate fragmentation of the track cylinders into smaller subsections. Ion tracks were annealed at elevated temperatures up to 400 °C in the Durango and Ca-britholite, and up to 560 °C in Sr-britholite. While there was a significant change in the track radii in the Durango apatite, tracks in the two synthetic samples remained almost unchanged.

Uncontrolled Keywords: SAXS, Ion track, Apatite, Olivine, Britholite, Activation energy
Additional Information:

17th International Conference on Radiation Effects in Insulators (REI)

Divisions: 11 Department of Materials and Earth Sciences > Material Science > Ion-Beam-Modified Materials
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 09 Jan 2015 10:32
Last Modified: 09 Jan 2015 10:32
PPN:
Funders: PK acknowledges the Australian Research Council for financial support. , The work at the University of Michigan was supported by the Office of Basic Energy Sciences of the USDOE (DE-FG02-97ER45656).
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