Temat: 28.90.+i - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Kinetic and Thermodynamic Behavior of Selenium on Modified Bentonite and Activated Carbon using Radiotracer Technique
Autorzy:: Tuğrul, B.
Erentürk, S.
Haciyakupoğlu, S.
Karatepe, N.
Altinsoy, N.
Baydoğan, N.
Baytaş, F.
Büyük, B.
Demir, E.
Gedik, S.
Powiązania:: https://bibliotekanauki.pl/articles/1401963.pdf
Data publikacji:: 2015-08
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 28.90.+i
Opis:: This study was aimed to determine kinetic and thermodynamic behaviors of selenium on modified bentonite and activated carbon. Thermodynamic parameters such as enthalpy ΔH, free energy change ΔG and entropy change ΔS of selenium adsorption suggested that the adsorption of Se(IV) on activated carbon and organic-inorganic modified bentonite was exothermic and endothermic process, respectively. The experimental data fitted very well the pseudo-second-order kinetic model for both adsorbents.
Źródło:: Acta Physica Polonica A; 2015, 128, 2B; B-180-B-181
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Effect of the Initial Microstructure on Defect Evolution in Neutron Irradiated Fe-Cr-C Alloys
Autorzy:: Brodziansky, T.
Slugeň, V.
Sojak, S.
Petriska, M.
Konstantinović, M.
Powiązania:: https://bibliotekanauki.pl/articles/1033939.pdf
Data publikacji:: 2017-11
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 78.70.Bj
28.90.+i
Opis:: The irradiation-induced evolution of vacancy type defects in various iron-chromium model alloys and high chromium ferritic/martensitic steels have been studied using coincidence Doppler broadening spectroscopy. Specimens were neutron irradiated to 0.11 dpa at two different temperatures, 290°C and 450°C. It has been found that the microstructure (ferrite vs. ferrite/martensite), more precisely distribution of dissolved carbon within the matrix, is one of the key factor that affect response of the materials to neutron irradiation. Presence of dissolved carbon within the matrix leads to formation of stable and immobile carbon-vacancy complexes which act as traps for irradiation induced vacancies and therefore, leading to increased formation of vacancy clusters. Impact of carbon-vacancy complexes on defects evolution during neutron irradiation is relevant only for certain irradiation temperatures.
Źródło:: Acta Physica Polonica A; 2017, 132, 5; 1590-1592
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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