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Wyszukujesz frazę "25.85.Ec" wg kryterium: Temat

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    Wyświetlanie 1-5 z 5
    Tytuł:
    Modification of Recrystallization Temperature of Uranium Dioxide in Function of Burn-Up and Its Impact on Fission Gas Release
    Autorzy:
    Szuta, M.
    El-Koliel, M. S.
    Powiązania:
    https://bibliotekanauki.pl/articles/2011009.pdf
    Data publikacji:
    1999-07
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    25.85.Ec
    66.30.Lw
    Opis:
    In the present paper it is assumed that the recrystallization temperature of uranium dioxide decreases with burn-up. Two opposing effects of enhancement and inhibition of irradiation damage introduced by fission effect on grain growth are described. Mathematical model of fission gas release from the UO$\text{}_{2}$ fuel affected by grain growth is presented. Theoretical results are compared with the experimental data.
    Źródło:
    Acta Physica Polonica A; 1999, 96, 1; 143-151
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of Thin Surface Layer on Fission Gas Release from Uranium Dioxide Single Crystal during Irradiation
    Autorzy:
    Szuta, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1945277.pdf
    Data publikacji:
    1996-03
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    25.85.Ec
    66.30.Lw
    Opis:
    In the present paper it is assumed that in the fluence range of 4×10$\text{}^{19}$ - 0.5×10$\text{}^{21}$ fissions/cm$\text{}^{3}$ the main contribution to the fission gas release from an uranium dioxide single crystal is from the bubble traps by knock-out process. An analysis of bubble distribution in the single crystal for different temperatures shows that some experimental peculiarities of the fission gas release during irradiation arise from different conditions of the thin surface layer and the interior of the considered solid. The thin surface layer is assigned by the fission fragment range.
    Źródło:
    Acta Physica Polonica A; 1996, 89, 3; 451-455
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Formation of Nanostructures in UO$\text{}_{2}$ Fuel at High Burn-ups
    Autorzy:
    Szuta, M.
    Bocar, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/2035481.pdf
    Data publikacji:
    2002-08
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    25.85.Ec
    66.30.Lw
    Opis:
    In the present paper it is assumed that above a limiting value of fission fluency (burn-up) a more intensive process of irradiation induced chemical interaction occurs. A significant part of fission gas product is thus expected to be chemically bounded in the matrix of UO$\text{}_{2}$ fuel. The fission gas atoms substituting, for example, uranium atoms in the crystallographic lattice can form weak facets. At a certain saturation condition, division of the grains can occur at the weak facets and the increase in fission-gas-products release may be expected. The fact that the process of grain division for high burn-ups (70-80 MWd/kgU) forms an extremely fine structure up to a temperature as high as 1100$\text{}^{º}$C and simultaneously the observed decrease in fission gas concentration in the fuel supports this concept. The analysis of fission gas concentration change due to the formation of nanostructures in UO$\text{}_{2}$ fuel at high burn-ups in terms of total surface area change in a function of burn-up and knock-out process is presented.
    Źródło:
    Acta Physica Polonica A; 2002, 102, 2; 207-213
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Surface Magnetostriction Model for MagNEMS
    Autorzy:
    Szumiata, T.
    Gzik-Szumiata, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1201850.pdf
    Data publikacji:
    2014-07
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    62.25.-g
    85.85.+j
    75.80.+q
    85.70.Ec
    68.35.-p
    Opis:
    In this work the influence of surface roughness on magnetostrictive nano-actuator parameters has been analyzed theoretically. A mechanical and magnetoelastic behavior of investigated cantilever bimorphic system has been described in the frame of the simple analytical model. Realistic material parameters have been incorporated into the model for high-magnetostrictive galfenol (Fe-Ga) thin films on silicon substrate. It has been shown that for 5 nm thick galfenol film a flat surface magnetostrictive effects modify the cantilever deflection and force only by 3%, whereas in the case of rough surface this influence increases to about 15%, when dimensions of roughness steps are comparable to the distances between them.
    Źródło:
    Acta Physica Polonica A; 2014, 126, 1; 200-201
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Assessment of the Magnetostrictive Properties of the Selected Construction Steel
    Autorzy:
    Juś, A.
    Nowak, P.
    Gińko, O.
    Powiązania:
    https://bibliotekanauki.pl/articles/1032160.pdf
    Data publikacji:
    2017-04
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    75.80.+q
    75.50.Bb
    85.70.Ec
    07.55.Ge
    46.25.Hf
    Opis:
    The paper presents results of research on the effects of mechanical stresses on the magnetostrictive properties of 13CrMo4-5 steel. Measurements of stress dependence of magnetostriction fill the gap in the state of the art enabling description of relationships between stresses applied to the samples and its magnetoelastic and magnetostrictive properties. Performed studies represent the starting point for development of unified model of both Villari (magnetoelastic) and Joule (magnetostrictive) effects under stresses in steels. The formulated model will be the basis for the development of generalized methods of interpreting the results of non-destructive testing of the state of the internal stresses in steels based on these phenomena.
    Źródło:
    Acta Physica Polonica A; 2017, 131, 4; 1084-1086
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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