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    Wyświetlanie 1-6 z 6
    Tytuł:
    Nanostructure of Thin Gold Films Investigated by Means of Atomic Force Microscopy and X-Ray Reflectometry Methods
    Autorzy:
    Żymierska, D.
    Auleytner, J.
    Domagała, J.
    Kobiela, T.
    Duś, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/2035502.pdf
    Data publikacji:
    2002-08
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    68.55.-a
    68.37.Ps
    61.10.Kw
    Opis:
    A study of the thin gold film growth, during the deposition on glass substrate under UHV conditions at low temperatures, is presented. The complementary methods, the atomic force microscopy and grazing incidence X-ray reflectometry, are used for the research. It is shown that due to variation of the time of deposition from 2 to 50 min different kinds of thin Au films nanostructures are obtained: from discontinuous films consisting of isolated islands, via formation of the chains of islands, up to continuous films.
    Źródło:
    Acta Physica Polonica A; 2002, 102, 2; 289-294
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Microstructure of the Pulsed Laser Deposited LaSrCuO Films
    Autorzy:
    Cieplak, M. Z.
    Abal'oshev, A.
    Zaytseva, I.
    Berkowski, M.
    Guha, S.
    Wu, Q.
    Powiązania:
    https://bibliotekanauki.pl/articles/2046751.pdf
    Data publikacji:
    2006-04
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    68.55.-a
    68.55.Jk
    68.37.Ps
    Opis:
    The X-ray diffraction and atomic force microscopy are used to examine the microstructure of La$\text{}_{1.85}$Sr$\text{}_{0.15}$CuO$\text{}_{4}$ films grown by pulsed laser deposition on LaSrAlO$\text{}_{4}$ substrates. The films grow with different degrees of built-in strain, ranging from a large compressive to a large tensile in-plain strain. The tensile strain cannot be attributed to a substrate-related strain. The possible origins of the tensile strain are discussed.
    Źródło:
    Acta Physica Polonica A; 2006, 109, 4-5; 573-576
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Selected Properties of ZnO Coating on Mg-Based Alloy for Biomedical Application
    Autorzy:
    Kania, A.
    Pilarczyk, W.
    Babilas, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/1029768.pdf
    Data publikacji:
    2018-02
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    68.55.-a
    61.05.cp
    68.37.Ps
    82.45.Bb
    Opis:
    Magnesium and its alloys are interesting materials for biodegradable implant applications. Magnesium alloys have very good strength properties, they are lightweight, but their main disadvantage is a low corrosion resistance in the physiological environment. Various modifications of a Mg alloys surface by deposition of different coatings are used to prevent untimely dissolution. The article presents the investigation results of a thin ZnO coating deposited on a MgCa2Zn1Gd3 alloy by means of the magnetron sputtering method. The studies include: scanning electron microscope observation of the ZnO surface, X-ray phase analysis, surface roughness measurement in atomic force microscopy, the microhardness test and potentiodynamic corrosion resistance test in the Ringer solution at 37°C. It was found that the ZnO coating is compact and continuous. It increases the hardness of the MgCa2Zn1Gd3 alloy and also improves its corrosion resistance. The corrosion potential is shifted slightly towards the positive values from -1.52 V to -1.50 V for the alloy with the ZnO coating.
    Źródło:
    Acta Physica Polonica A; 2018, 133, 2; 222-224
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Preparation and Characterization of Nanocrystalline PbS Thin Films Produced by Chemical Bath Deposition
    Autorzy:
    Göde, F.
    Yavuz, F.
    Kariper, İ.
    Powiązania:
    https://bibliotekanauki.pl/articles/1401980.pdf
    Data publikacji:
    2015-08
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    68.37.Ps
    68.55.-a
    78.20.-e
    73.61.Ga
    Opis:
    Lead sulfide thin films are deposited on glass substrates at room temperature for 2 h by chemical bath deposition. The structure, surface morphology, optical and electrical properties of the thin films are characterized by X-ray diffraction, scanning electron microscopy, atomic force microscopy, optical absorption spectroscopy and the Hall effect measurements. The obtained films show the formation of well crystallized PbS with a cubic rock salt structure and with the preferential orientation (111) plane. The lattice parameter and crystallite size of the films are found as a=600 Å and 62 nm from the X-ray reflectivity data from the atomic force microscopy image, respectively. The band gap width of the films is determined as 2.84 eV. The optical parameters of the films such as refractive index, extinction coefficient, real and imaginary parts of dielectric constant are evaluated. Moreover, from the Hall measurements, electrical resistivity, conductivity carrier mobility, and carrier concentration of the films are determined as 3.722 Ω m, 0.268 Ω¯¹ m¯¹, 8.486× 10¯¹ m² V¯¹ s¯¹, and $1.976 \times 10^{18} m^{-3}$, respectively.
    Źródło:
    Acta Physica Polonica A; 2015, 128, 2B; B-215-B-218
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of the Plasma Deposition Parameters on the Properties of Ti/TiC Multilayers for Hard Coatings Applications
    Autorzy:
    Saoula, N.
    Henda, K.
    Kesri, R.
    Shrivastava, S.
    Erasmus, R.
    Comins, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1490973.pdf
    Data publikacji:
    2012-01
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    81.15.Cd
    68.35.Ct
    68.55.-a
    68.37.Ps
    Opis:
    Titanium carbide (TiC) hard coatings have been obtained on steel and silicon substrates by rf magnetron sputtering process. Two layer coatings have been deposited in order to improve adhesion on steel. The lower layer was titanium metal and the upper TiC layer was obtained by reactive sputtering of the titanium target in Ar and methane gas mixture. The study confirmed that the TiC layer composition depends on the reactive sputtering gas composition and substrate bias voltage. Film microhardness was measured by microindentation. Measurement results showed that the hardness coating depends on the microstructure of our coatings and the polarization of bias substrate is an important parameter to control the microstructure.
    Źródło:
    Acta Physica Polonica A; 2012, 121, 1; 172-174
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Kinetic Roughening and Material Optical Properties Influence on Van der Waals/Casimir Forces
    Autorzy:
    van Zwol, P.
    Palasantzas, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/1539079.pdf
    Data publikacji:
    2010-02
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    68.55.Jk
    68.37.Ps
    85.85.+j
    78.68.+m
    68.55.-a
    47.55.nb
    Opis:
    Atomic force microscopy measurements and force theory calculations using the Lifshitz theory show that van der Waals/Casimir dispersive forces have a strong dependence on surface roughness and material optical properties. It is found that at separations below 100 nm the roughness effect is manifested through a strong deviation from the normal scaling of the force with separation distance. Moreover, knowledge of precise optical properties of metals is shown to be very important for accurate force predictions rather than referring to idealized defect free material models. Finally, we compare the van der Waals/Casimir forces to capillary adhesive forces in order to illustrate their significance in stiction problems.
    Źródło:
    Acta Physica Polonica A; 2010, 117, 2; 379-383
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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