National Research Foundation of South Africa

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National Research Foundation of South Africa

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The effect of He and swift heavy ions on nanocrystalline zirconium nitride

Janse Van Vuuren, A.; Neethling, Johannes Henoch; Skuratov, Vladimir A.; Uglov, Vladimir Vasilevich; Petrović, Srđan M.

(2014)

TY  - JOUR
AU  - Janse Van Vuuren, A.
AU  - Neethling, Johannes Henoch
AU  - Skuratov, Vladimir A.
AU  - Uglov, Vladimir Vasilevich
AU  - Petrović, Srđan M.
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5990
AB  - Recent studies have shown that swift heavy ion irradiation may significantly modulate hydrogen and helium behaviour in some materials. This phenomenon is of considerable practical interest for ceramics in general and also for candidate materials for use as inert matrix fuel hosts. These materials will accumulate helium via (n, alpha) reactions and will also be subjected to irradiation by fission fragments. Cross-sectional transmission electron microscopy and scanning electron microscopy was used to study nanocrystalline ZrN irradiated with 30 keV He to fluences between 10(16) and 5 x 10(16) cm(-2), 167 MeV Xe to fluences between 5 x 10(13) and 10(14) cm(-2) and also 695 MeV Bi to a fluence of 1.5 x 10(13) cm(-2). He/Bi and He/Xe irradiated samples were annealed at temperatures between 600 and 1000 degrees C and were analysed using SEM, XTEM and selected area diffraction. The results indicated that post irradiation heat treatment induces exfoliation at a depth that corresponds to the end-of-range of 30 keV He ions. SEM and XTEM analysis of He/Xe irradiated samples revealed that electronic excitation effects, due to Xe ions, suppress helium blister formation and consequently the exfoliation processes. He/Bi samples however do not show the same effects. This suggests that nanocrystalline ZrN is prone to the formation of He blisters which may ultimately lead material failure. These effects may however be mitigated by electronic excitation effects from certain SHIs.
T2  - Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms
T1  - The effect of He and swift heavy ions on nanocrystalline zirconium nitride
VL  - 326
SP  - 19
EP  - 22
DO  - 10.1016/j.nimb.2013.10.063
ER  - 
@article{
author = "Janse Van Vuuren, A. and Neethling, Johannes Henoch and Skuratov, Vladimir A. and Uglov, Vladimir Vasilevich and Petrović, Srđan M.",
year = "2014",
abstract = "Recent studies have shown that swift heavy ion irradiation may significantly modulate hydrogen and helium behaviour in some materials. This phenomenon is of considerable practical interest for ceramics in general and also for candidate materials for use as inert matrix fuel hosts. These materials will accumulate helium via (n, alpha) reactions and will also be subjected to irradiation by fission fragments. Cross-sectional transmission electron microscopy and scanning electron microscopy was used to study nanocrystalline ZrN irradiated with 30 keV He to fluences between 10(16) and 5 x 10(16) cm(-2), 167 MeV Xe to fluences between 5 x 10(13) and 10(14) cm(-2) and also 695 MeV Bi to a fluence of 1.5 x 10(13) cm(-2). He/Bi and He/Xe irradiated samples were annealed at temperatures between 600 and 1000 degrees C and were analysed using SEM, XTEM and selected area diffraction. The results indicated that post irradiation heat treatment induces exfoliation at a depth that corresponds to the end-of-range of 30 keV He ions. SEM and XTEM analysis of He/Xe irradiated samples revealed that electronic excitation effects, due to Xe ions, suppress helium blister formation and consequently the exfoliation processes. He/Bi samples however do not show the same effects. This suggests that nanocrystalline ZrN is prone to the formation of He blisters which may ultimately lead material failure. These effects may however be mitigated by electronic excitation effects from certain SHIs.",
journal = "Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms",
title = "The effect of He and swift heavy ions on nanocrystalline zirconium nitride",
volume = "326",
pages = "19-22",
doi = "10.1016/j.nimb.2013.10.063"
}
Janse Van Vuuren, A., Neethling, J. H., Skuratov, V. A., Uglov, V. V.,& Petrović, S. M.. (2014). The effect of He and swift heavy ions on nanocrystalline zirconium nitride. in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 326, 19-22.
https://doi.org/10.1016/j.nimb.2013.10.063
Janse Van Vuuren A, Neethling JH, Skuratov VA, Uglov VV, Petrović SM. The effect of He and swift heavy ions on nanocrystalline zirconium nitride. in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms. 2014;326:19-22.
doi:10.1016/j.nimb.2013.10.063 .
Janse Van Vuuren, A., Neethling, Johannes Henoch, Skuratov, Vladimir A., Uglov, Vladimir Vasilevich, Petrović, Srđan M., "The effect of He and swift heavy ions on nanocrystalline zirconium nitride" in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 326 (2014):19-22,
https://doi.org/10.1016/j.nimb.2013.10.063 . .
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