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Radiation effects in yttria-stabilized zirconia: Comparison between nuclear and electronic processes

Abstract : Yttria-stabilized zirconia (YSZ) single crystals were irradiated with heavy ions at energies ranging from a few MeV to a few GeV in order to compare the effects of nuclear collisions and electronic excitations. The amount of damage created by irradiation was measured as a function of the ion fluence by Rutherford backscattering and channeling spectrometry (RBS/C). Monte-Carlo simulations of RBS/C data show that both the depth distributions of radiation damage and the damage build-up strongly depend on the type of irradiation. At low energy (4 MeV Au ions) the damage exhibits a peak around the ion projected range (~500 nm) and it accumulates with a double-step process; at high energy (940 MeV Pb ions) the damage profiles are rather flat up to several micrometers and the damage accumulation is monotonous (one-step). RBS/C and X-ray diffraction results show that the various irradiations never lead to total disordering of irradiated layers (amorphization), even at the highest fluences used in the experiments.
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https://hal-cea.archives-ouvertes.fr/cea-00373316
Contributor : Chantal Brassy <>
Submitted on : Friday, April 3, 2009 - 6:49:51 PM
Last modification on : Saturday, September 19, 2020 - 3:16:05 AM

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  • HAL Id : cea-00373316, version 1

Citation

S. Moll, L. Thomé, F. Garrido, L. Vincent, G. Sattonnay, et al.. Radiation effects in yttria-stabilized zirconia: Comparison between nuclear and electronic processes. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Elsevier, 2008, 266, pp.3048-3051. ⟨cea-00373316⟩

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