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Annealing behaviour of ion tracks in olivine, apatite and britholite

Afra, B. and Lang, M. and Bierschenk, T. and Rodriguez, M. D. and Weber, W. J. and Trautmann, C. and Ewing, R. C. and Kirby, N. and 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, Elsevier Science Publishing, pp. 126-130, 326, ISSN 0168583X,
[Online-Edition: http://dx.doi.org/10.1016/j.nimb.2013.10.072],
[Article]

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. and Lang, M. and Bierschenk, T. and Rodriguez, M. D. and Weber, W. J. and Trautmann, C. and Ewing, R. C. and Kirby, N. and Kluth, P.
Title: Annealing behaviour of ion tracks in olivine, apatite and britholite
Language: English
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.

Journal or Publication Title: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
Volume: 326
Publisher: Elsevier Science Publishing
Uncontrolled Keywords: SAXS, Ion track, Apatite, Olivine, Britholite, Activation energy
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
Official URL: http://dx.doi.org/10.1016/j.nimb.2013.10.072
Additional Information:

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

Identification Number: doi:10.1016/j.nimb.2013.10.072
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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