Zobrazeno 1 - 10
of 143
pro vyhledávání: '"J. Tousset"'
Publikováno v:
Radiation Effects and Defects in Solids
Radiation Effects and Defects in Solids, Taylor & Francis, 1994, 128, pp.295-305
Radiation Effects and Defects in Solids, Taylor & Francis, 1994, 128, pp.295-305
Iron samples were implanted at a fluence of 1017 N+ ions.cm−2 with an energy of 50 keV. The beam current density was varied in the range 6–60 μA.cm−2 as well as the quality of the vacuum in the implantation chamber. Implantations were performe
Autor:
Nathalie Moncoffre, M. Stern, H. Artigalas, E. Gerlic, J. Tousset, A. Chevarier, M. El Bouanani, B. Roux, N. Chevarier
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 66:237-241
We investigate the nitrogen profiling potentially using incident alpha particles from 5 to 7 MeV. In this energy range the alpha scattering cross sections on light elements are substantially larger than the Rutherford cross sections and therefore lea
Publikováno v:
Materials Science Forum. :495-504
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
Nuclear Instruments and Methods in Physics Research B
Ion Beam Modification Of Materials' 90
Ion Beam Modification Of Materials' 90, Sep 1990, Knoxville, United States. pp.817-822
Nuclear Instruments and Methods in Physics Research B
Ion Beam Modification Of Materials' 90
Ion Beam Modification Of Materials' 90, Sep 1990, Knoxville, United States. pp.817-822
AISI 304L stainless steel samples were implanted at room temperature with 100 keV nitrogen or carbon ions with a 4 × 10 17 ions/cm 2 fluence. Samples were annealed at a temperature of 360 °C for 4 and 100 hours. Using the nuclear resonant 15 N (p,
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. :1177-1182
Annealing in various environments was performed on high-dose (10 17 ions/cm 2 , 110 keV) iron-implanted polycrystalline alumina samples in order to study the nature of the chemical phases formed during the recovery of the implanted layer. The influen
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. :1205-1210
Polycrystalline α-Al2O3 samples have been implanted by 1017 Zr, Fe or Cu ions/cm 2 at 110 keV in order to form oxide precipitates in the near-surface region after annealing in air. A chemical and microstructural characterization has been performed o
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 52:182-186
The nuclear resonant 58 Ni(p,γ) 59 Cu reaction at E p = 1424 keV was used to determine nickel depth distributions in iron-nickel based alloys. γ radiations were detected by using a high efficiency Ge detector. For quantifying the reaction yield, th
Autor:
M. A. Elkhakani, Moni Behar, F.C. Zawislak, Stella M. M. Ramos, J. Tousset, Livio Amaral, G. Marest, A. Vasquez, Nathalie Moncoffre
Publikováno v:
Hyperfine Interactions. 59:289-292
Cr-rich steel samples were implanted with nitrogen ions and post-irradiated with light particles (alphas and argon ions). The thermal evolution of the formed carbonitrides was followed by Conversion Electron Mossbauer Spectroscopy. The nitrogen profi
Publikováno v:
Surface and Interface Analysis. 16:530-534
Titanium nitridation has been achieved in a tubular reactor under a radio frequency low-pressure plasma. The influence of the plasma working parameters (substrate temperature, nature of the gas phase and plasma input power) on the superficial nitride
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Elsevier, 1990, 45, pp.81-85
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Elsevier, 1990, 45, pp.81-85
We present the use of boron nuclear analysis in order to determine the boron depth distribution in implanted layers and the stoichiometry of thin NiBx, FeNIBx and TiBx films. For this purpose several nuclear reactions that have already given analytic