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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Swadener, John G.
Aston University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (20/20 displayed)
- 2022Experimental testing of fracture fixation plates – A reviewcitations
- 2013Direct measurement of coherency limits for strain relaxation in heteroepitaxial core/shell nanowirescitations
- 2010Crystal orientation effects in scratch testing with a spherical indentercitations
- 2009Oxygen effects on irradiated tantalum alloyscitations
- 2009A micro-compression study of shape-memory deformation in U-13 at.% Nbcitations
- 2009Effect of microstructure upon elastic behaviour of human tooth enamelcitations
- 2008Characterization of oxide layers grown on D9 austenitic stainless steel in lead bismuth eutecticcitations
- 2008An exploratory study to determine applicability of nano-hardness and micro-compression measurements for yield stress estimationcitations
- 2008Influence of impact angles on penetration rates of CRAs exposed to a high velocity multiphase flow
- 2007Anomalies in stiffness and damping of a 2D discrete viscoelastic system due to negative stiffness componentscitations
- 2006Nanoindentation measurement of surface residual stresses in particle-reinforced metal matrix compositescitations
- 2006Mechanical properties and the evolution of matrix molecules in PTFE upon irradiation with MeV alpha particlescitations
- 2006Study on fatigue and energy-dissipation properties of nanolayered Cu/Nb thin filmscitations
- 2005Thermal stability of sputter-deposited 330 austenitic stainless-steel thin films with nanoscale growth twinscitations
- 2004Heavy ion irradiation effects in zirconium nitride
- 2003Increasing the fracture toughness of silicon by ion implantationcitations
- 2002Deformation microstructure under nanoindentations in Cu using 3D x-ray structural microscopycitations
- 2002Shear induced toughening in bonded jointscitations
- 2001Measurement of residual stress by load and depth sensing indentation with spherical indenterscitations
- 2000Experimental and simulated grain boundary groove profiles in tungstencitations
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document
Heavy ion irradiation effects in zirconium nitride
Abstract
Polycrystalline zirconium nitride (ZrN) samples were irradiated with He <sup>+</sup>, Kr <sup>++</sup>, and Xe <sup>++</sup> ions to high (>1·10 <sup>16</sup> ions/cm <sup>2</sup>)fluences at ∼100 K. Following ion irradiation, transmission electronmicroscopy (TEM) and grazing incidence X-ray diffraction (GIXRD) wereused to analyze the microstructure and crystal structure of thepost-irradiated material. For ion doses equivalent to approximately 200displacements per atom (dpa), ZrN was found to resist any amorphizationtransformation, based on TEM observations. At very high displacementdamage doses, GIXRD measurements revealed tetragonal splitting of someof the diffraction maxima (maxima which are associated with cubic ZrNprior to irradiation). In addition to TEM and GIXRD, mechanical propertychanges were characterized using nanoindentation. Nanoindentationrevealed no change in elastic modulus of ZrN with increasing ion dose,while the hardness of the irradiated ZrN was found to increasesignificantly with ion dose. Finally, He <sup>+</sup> ion implanted ZrNsamples were annealed to examine He gas retention properties of ZrN as afunction of annealing temperature. He gas release was measured using aresidual gas analysis (RGA) spectrometer. RGA measurements wereperformed on He-implanted ZrN samples and on ZrN samples that had alsobeen irradiated with Xe <sup>++</sup> ions, in order to introduce highlevels of displacive radiation damage into the matrix. He evolutionstudies revealed that ZrN samples with high levels of displacementdamage due to Xe implantation, show a lower temperature threshold for Herelease than do pristine ZrN samples.