Elaboration and behavior under extreme irradiation conditions of nano- and micro-structured TiC

Gavarini, S.; Millard-Pinard, N.; Garnier, Vincent; Gherrab, M.; Baillet, Julie; Dernoncourt, L.; Peaucelle, C.; Jaurand, X.; Douillard, Thierry

doi:10.1016/j.nimb.2015.04.064

Cited by 9 publications

(3 citation statements)

References 60 publications

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“…It is interesting at this stage to compare SiC behavior with that of TiC irradiated in similar conditions. It has been shown in a previous work [44] that polycrystalline TiC (submicronic to micrometric grains) is not amorphized by xenon irradiation at RT up to an ion fluence of 1.2.10 17 at.cm -2 (423 dpa). Nevertheless, nano-or micro-cracks are formed at depths near the projected range (R p ≈ 160 nm) and where lateral extension varies with the size of the considered grain (Fig.…”

Section: Iv-discussionmentioning

confidence: 90%

Surface damage on polycrystalline β-SiC by xenon ion irradiation at high fluence

Baillet

Gavarini

Millard-Pinard

et al. 2018

Journal of Nuclear Materials

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Nano-grained β-silicon carbide (β-SiC) pellets were prepared by Spark Plasma Sintering (SPS). These were implanted at room temperature with 800 keV xenon at ion fluences of 5.10 15 and 1.10 17 cm-2. Microstructural modifications were studied by electronic microscopy (TEM and SEM) and xenon profiles were determined by Rutherford Backscattering Spectroscopy (RBS). A complete amorphization of the implanted area associated with a significant oxidation is observed for the highest fluence. Large xenon bubbles formed in the oxide phase are responsible of surface swelling. No significant gas release has been measured up to 10 17 at.cm-2. A model is proposed to explain the different steps of the oxidation process and xenon bubbles formation as a function of ion fluence.

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Section: Iv-discussionmentioning

confidence: 90%

Surface damage on polycrystalline β-SiC by xenon ion irradiation at high fluence

Baillet

Gavarini

Millard-Pinard

et al. 2018

Journal of Nuclear Materials

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“…A facility, designed and implemented in the Institute of High Current Electronics (Tomsk, Russia), makes it possible to modify the surface by PEBI [42]. The material is heated at a rate of up to 10 9 K/s and, then, cooled at a rate of 10 4 − 10 9 K/s forming temperature gradients in the surface layer up to 10 7 − 10 8 K/m [43]. To date, in collaboration with the Institute of Strength Physics and Materials Science SB RAS (Tomsk, Russia), a new approach has been developed to increase the depth of the surface layer on the metalceramic alloys which has a high content of nanoscale components.…”

Section: Introductionmentioning

confidence: 99%

“…Inert gases (krypton and xenon), having higher atomic masses and lower ionization energy levels than argon (Table 1), are used as plasma-forming gas. Heavy ions interact with the surface of the irradiated material, increase the effective energy density in the electron beam, form a high level of radiation defects in the surface layer, and accelerate the processes of mass transfer and atom redistribution [43,44]. This chapter presents the results of the studies of the nanostructured hardened surface layer on the TiC-(Ni-Cr) metal-ceramic alloy (ratio of components 50:50) formed by PEBI in the plasma of argon, krypton, and xenon.…”

Section: Introductionmentioning

confidence: 99%

Formation of a Nanostructured Hardened Surface Layer on the TiC-(Ni-Cr) Metal-Ceramic Alloy by Pulsed Electron-Beam Irradiation

Овчаренко

Ivanov

Bao

2020

Springer Tracts in Mechanical Engineering

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The efficiency and service life of products made from metal-ceramic tool alloys and used as cutting tools and friction units are determined by a combination of physical and strength properties of their surface layers with a thickness of up to 200 μm. Therefore, much attention is paid to their improvement at the present time. An effective way to increase the operational properties of the metal-ceramic alloy products is to modify the structure and the phase composition of the surface layers by forming multi-scale internal structures with a high proportion of low-dimensional (submicro and nano) components. For this purpose, surfaces are treated with concentrated energy fluxes. Pulse electron-beam irradiation (PEBI) in an inert gas plasma is one of the most effective methods. This chapter presents results of theoretical and experimental studies of this process. An example is the nanostructured hardened surface layer on the TiC-(Ni-Cr) metal-ceramic alloy (ratio of components 50:50) formed by PEBI in the plasma of argon, krypton, and xenon. Its multi-level structure, phase composition, as well as tribological and strength properties are shown.

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Titanium Monocarbide

Shabalin¹

2020

Ultra-High Temperature Materials III

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Elaboration and behavior under extreme irradiation conditions of nano- and micro-structured TiC

Cited by 9 publications

References 60 publications

Surface damage on polycrystalline β-SiC by xenon ion irradiation at high fluence

Surface damage on polycrystalline β-SiC by xenon ion irradiation at high fluence

Formation of a Nanostructured Hardened Surface Layer on the TiC-(Ni-Cr) Metal-Ceramic Alloy by Pulsed Electron-Beam Irradiation

Titanium Monocarbide

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