Stability of Ti–Zr–N coatings under Xe-ion irradiation

Углов, В.В.; Rusalski, D. P.; Zlotski, S.V.; Sevriuk, A.V.; Abadias, G.; Kislitsin, S. B.; Kadyrzhanov, K.K.; Gorlachev, I.; Дуб, С. Н.

doi:10.1016/j.surfcoat.2009.11.023

Cited by 33 publications

(10 citation statements)

References 9 publications

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“…where E is the modulus of elasticity, m is Poisson ratio and Dh is the displacement of the X-ray line due to macrostresses [12]. The parameters E and m are equal to 400 GPa and 0.24, respectively [13].…”

Section: X-ray Diffractionmentioning

confidence: 99%

Radiation tolerance of nanostructured ZrN coatings against swift heavy ion irradiation

Vuuren¹,

Skuratov²,

Углов³

et al. 2013

Journal of Nuclear Materials

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Section: X-ray Diffractionmentioning

confidence: 99%

Radiation tolerance of nanostructured ZrN coatings against swift heavy ion irradiation

Vuuren¹,

Skuratov²,

Углов³

et al. 2013

Journal of Nuclear Materials

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“…Nitride coatings have already been examined as a perspective for covering of surface cladding of gas-cooled fast reactors (GFR) [8] and it makes current studies of their radiation resistance. As follows from our investigations, the best results were found for the multicomponent composite coatings based on the solid solutions of nitrides of several transition metals (Ti-Cr-N, Ti-Zr-N, Ti-Mo-N and others) [9,10]. However, stability of the physical-mechanical properties of such coatings under irradiation is insufficiently studied that impedes their possible use as radiation-resistant protective coatings.…”

Section: Introductionmentioning

confidence: 94%

Effects of Irradiation with Low-Energy and High-Energy Krypton Ions on the Structure of TiCrN Coatings

2015

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The results of surface structure investigations of TiCrN coating on carbon steel after irradiation by highand low energy krypton ions and successive two-hour vacuum annealing are reported in the present publication. Specimens with the TiCrN coatings of the 50 ÷ 100 nm thickness were formed by vacuum arc deposition techniques. The prepared specimens were irradiated by low energy (280 keV) and high energy (125 MeV) krypton ions. Study of surface structure was done by scanning electron microscopy and atomic force microscopy. X-ray diffraction and the Rutherford backscattering spectrometry were applied for determination of structure and coating thickness. After irradiation by high energy Kr ions there appear convexities of spherical shape with dimensions 10 ÷ 30 nm on the surface of the coating. Subsequent two-hour vacuum annealing led to decrease of convexities dimensions. Irradiation by low-energy Kr ions does not lead to significant changes in the structure of the coating surface. Only traces of surface sputtering are found. Explanation of the observed surface damage is proposed. Convexities are the traces of ions passing through coating and appear due to structural reconstruction at energy release along a trajectory of ions braking. As the projective range of high energy Kr ions exceeds coating thickness, then damage of structures is generated in the substrate and convexities are the traces of undersurface damages.

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“…It has been shown that Ti 1−x X x N (X= Zr, Hf, V, Nb, Ta) can form solid solution over the whole x range (0 < x < 1) and are thermodynamically stable in the rocksalt structure [77,78]. Ti 1−x Zr x N has been well studied by experiments and calculations [72,73,79,80]. The hardness vales have been found between 32 and 35 GPa for the as-deposited films, while after annealing at 1100 − 1200…”

Section: Ternary Pseudo-binary Nitride Alloysmentioning

confidence: 99%

Properties of multilayered and multicomponent nitride alloys from first principles

Wang¹

2018

Linköping Studies in Science and Technology. Dissertations

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This thesis is a theoretical exploration of properties of multilayered and multicomponent nitride alloys, in particular their mixing thermodynamics and elastic behaviors. Systematic investigation of properties of a large class of materials, such as the multicomponent nitride solid solutions, is in line with the modern approach of high-throughput search of novel materials. In this thesis we benchmark and utilize simple but efficient methodological frameworks in predicting mixing thermodynamics, Young's moduli distribution of multilayer alloys and the linear thermal expansion of quaternary nitride solid solutions.We demonstrate by accurate ab-initio calculations that Ti 1−x Al x N solid solution is stabilized by interfacial effects if it is coherently sandwiched between TiN layers along (001). For TiN/AlN and ZrN/AlN multilayers we show higher thermodynamic stability with semicoherent interfaces than with isostructural coherent ones.Accurate 0 Kelvin elastic constants of cubic Ti x X y Al 1−x−y N (X=Zr, Hf, Nb, V, Ta) solid solutions and their multilayers are derived and an analytic comparison of strengths and ductility are presented to reveal the potential of these materials in hard coating applications. The Young's moduli variation of the bulk materials has provided a reliable descriptor to screen the Young's moduli of coherent multilayers.The Debye model is used to reveal the high-temperature thermodynamics and spinodal decomposition of Ti x Nb y Al 1−x−y N. We show that though the effect of vibration is large on the mixing Gibbs free energy the local spinoal decomposition tendencies are not altered. A quasi-harmonic Debye model is benchmarked against results of molecular dynamics simulations in predicting the thermal expansion coefficients of Ti x X y Al 1−x−y N (X=Zr, Hf, Nb, V, Ta).v Sammanfattning Denna avhandling är en teoretisk undersökning av egenskaperna hos multilager och multikomponentlegeringar av nitrider, särskilt deras blandningstermodynamik och elastiska egenskaper. Systematiska undersökningar av egenskaperna hos en stor materialfamilj, såsom fasta lösningar av multikomponentnitrider, ligger i linje med den moderna angreppsvinkeln av massundersökningar i sökandet efter nya material. I denna avhandling utvärderar och använder vi enkla men effektiva metodologiska ramverk för att förutsäga blandningstermodynamik, fördelning av Young's moduli multilager och den linjära termiska expansionen i kvaternära fasta lösningar av nitrider.Vi visar med precisa ab-initio-beräkningar att en fast lösning av Ti 1−x Al x N stabiliseras av gränssnittseffekter om den placeras koherent mellan TiN-skikt längs med (001). För multilager av TiN/AlN och ZrN/AlN påvisar vi högre termodynamisk stabilitet med semikoherenta gränsskikt än med isostrukturella koherenta. Precisa elastiska konstanter vid 0 K för kubiska fasta lösningar av Ti x X y Al 1−x−y N (X=Zr, Hf, Nb, V, Ta) och deras multilager beräknas och en analytisk jämförelse av deras hållfasthet och duktilitet presenteras för att visa dessa materials potential ...

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Stability of Ti–Zr–N coatings under Xe-ion irradiation

Cited by 33 publications

References 9 publications

Radiation tolerance of nanostructured ZrN coatings against swift heavy ion irradiation

Radiation tolerance of nanostructured ZrN coatings against swift heavy ion irradiation

Effects of Irradiation with Low-Energy and High-Energy Krypton Ions on the Structure of TiCrN Coatings

Properties of multilayered and multicomponent nitride alloys from first principles

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