Structural integrity and charaterisation at lattice and nanometre levels of ZrN polycrystalline irradiated by 4 MeV Au ions.pdf (1.6 MB)
Structural integrity and characteristics at lattice and nanometre levels of ZrN polycrystalline irradiated by 4 MeV Au ions
journal contribution
posted on 2018-07-09, 14:15 authored by Weichao Bao, Stuart Robertson, Ji-Xuan Liu, Guo-Jun Zhang, Fangfang Xu, Houzheng WuWe report an as-hot-pressed zirconium nitride polycrystalline with its primary crystal structure maintained no change but lattice defects and features were introduced at nanometre-scale after being irradiated by 4 MeV Au 2+ with a total fluence of 5 × 10 16 /cm 2 . The variation of grey-level seen in backscattered electron images and electron backscattered diffraction maps directly evidenced the structure integrity of the polycrystalline ZrN is well maintained with no crystal structure change of ZrN. The irradiation depth had no relevance to crystal orientation, and Au deposition peaked at a depth of ∼0.58 μm with a near-Gaussian distribution. Within a depth < 0.58 μm, long dislocation lines were developed with a Burgers vector of [01¯] b /2 and density 3.2 × 10 14 1/m 2 ; beyond this depth, dislocation loops were formed with much higher density. In the ionization zone, cubic ZrO 2 crystallites precipitated in a size of ∼5 nm. The irradiation damage processes are discussed based on the observed features.
Funding
The present work was financially supported by the National Natural Science Foundation of China (51532009, 51502322, 11575275), Science and Technology Commission of Shanghai Municipality (16DZ2260603), Shanghai Technical Platform for Testing and Characterization on Inorganic Materials (14DZ2292900), and Loughborough University’s PhD studentship provided to SR. The authors acknowledge use of facilities within the Loughborough Materials Characterisation Centre.
History
School
- Aeronautical, Automotive, Chemical and Materials Engineering
Department
- Materials
Published in
Journal of the European Ceramic SocietyCitation
BAO, W. ... et al, 2018. Structural integrity and characteristics at lattice and nanometre levels of ZrN polycrystalline irradiated by 4 MeV Au ions. Journal of the European Ceramic Society, 38 (13), pp.4373-4383.Publisher
© ElsevierVersion
- AM (Accepted Manuscript)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Acceptance date
2018-05-12Publication date
2018Notes
This paper was accepted for publication in the journal Journal of the European Ceramic Society and the definitive published version is available at https://doi.org/10.1016/j.jeurceramsoc.2018.05.013ISSN
0955-2219Publisher version
Language
- en