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Wyszukujesz frazę "61.25.Bi" wg kryterium: Temat

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    Wyświetlanie 1-3 z 3
    Tytuł:
    Scattering properties of argon gas in the temperature range 87.3-120 K
    Autorzy:
    Al-Maaitah, I.
    Joudeh, B.
    Sandouqa, A.
    Ghassib, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/1065068.pdf
    Data publikacji:
    2016-06
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    61.25.Bi
    64.10.+h
    67.10.Fj
    Opis:
    A theoretical model, based on the Galitskii-Migdal-Feynman formalism, is introduced for determining the scattering properties of argon gas, especially the "effective" total, viscosity and average cross-sections. The effective phase shifts are used to compute the quantum second virial coefficient in the temperature range 87.3-120 K. The sole input is the Hartree-Fock dispersion (HFD-B3) potential. The thermophysical properties of the gas are then calculated. The results are in good agreement with experimental data.
    Źródło:
    Acta Physica Polonica A; 2016, 129, 6; 1131-1140
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    NiTi shape memory marformed alloy studied by electron beam precession TEM orientation mapping method
    Autorzy:
    Świec, P.
    Zubko, M.
    Lekston, Z.
    Stróż, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/1055112.pdf
    Data publikacji:
    2017-05
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    62.20.fg
    62.20.F-
    61.43.Dq
    61.66.Bi
    68.37.Ef
    62.25.-g
    64.70.Nd
    Opis:
    Severe plastic deformation by cold-rolling in martensitic state was applied to Ni_{50.4}Ti_{49.6} shape memory alloy. Received materials with 17, 20, 25, and 35% deformation were further annealed at 450°C for 15 min. After such treatment hardness of this alloy increased significantly reaching 365 HV0.5 for highest deformation degree. Calorimetric studies revealed two-stage and two-step character of martensitic transformation occurring in all specimens. Nanocrystalline structure with average grain size 53, 34, 28, and 24 nm was obtained. In material with 35% of deformation amorphous regions containing a nuclei of B2 parental phase with average size of 5 nm were observed. To determine the crystallographic orientation of observed nanograins and for better phase analysis, electron beam precession transmission electron microscopy orientation mapping was performed.
    Źródło:
    Acta Physica Polonica A; 2017, 131, 5; 1307-1310
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ion and Electron Beam Induced Luminescence οf Rare Earth Doped YAG Crystals
    Autorzy:
    Gawlik, G.
    Sarnecki, J.
    Jóźwik, I.
    Jagielski, J.
    Pawłowska, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1504113.pdf
    Data publikacji:
    2011-07
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    78.60.Hk
    52.59.Bi
    79.20.Rf
    61.80.Lj
    41.75.Ak
    41.75.Cn
    61.72.S-
    61.72.-y
    29.40.-n
    77.84.Bw
    79.60.Ht
    87.53.Bn
    78.55.-m
    78.60.-b
    77.55.Px
    77.55.-g
    25.40.Lw
    Opis:
    The aim of this work was the evaluation of ion-beam induced luminescence for the characterization of luminescent oxide materials containing rare earth elements. The yttrium aluminium garnet epilayers doped with Nd, Pr, Ho, and Tm atoms were used. The ion-beam induced luminescence spectra were excited using 100 keV $H_2^{+}$ ion beam and were recorded in the wavelengths ranging from 300 nm up to 1000 nm. The separate parts of the surface of the same samples were used for ion-beam induced luminescence and cathodoluminescence experiments. Cathodoluminescence spectra have been recorded in the range from 370 nm up to 850 nm at 20 keV e-beam in scanning electron microscope equipped with a grating spectrometer coupled with a photomultiplier. The observed narrow ion-beam induced luminescence lines can be ascribed to the well known radiative transitions in the rare-earth ions in the YAG crystals. The cathodoluminescence spectra reveal essentially the same emission lines as ion-beam induced luminescence. The decrease of the ion-beam induced luminescence lines intensity has been observed under the increasing ion fluences. The ion-beam induced luminescence may be used for characterization of transparent luminescent materials as an alternative method for cathodoluminescence and can be especially useful for observation of ion-beam damage formation in crystals.
    Źródło:
    Acta Physica Polonica A; 2011, 120, 1; 181-183
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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