Autor: Kozák, V. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Preparation of Silicon Oxycarbide Composites Toughened by Inorganic Fibers via Pyrolysis of Precursor Siloxane Composites
Autorzy:: Strachota, A.
Černý, M.
Glogar, P.
Sucharda, Z.
Havelcová, M.
Chlup, Z.
Dlouhý, I.
Kozák, V.
Powiązania:: https://bibliotekanauki.pl/articles/1503708.pdf
Data publikacji:: 2011-08
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 81.05.Je
81.05.Mh
82.30.Lp
Opis:: The optimization of silicon oxycarbide (SiOC) synthesis (sol-gel/pyrolysis) is described, starting from methyltriethoxysilane, dimethyldiethoxysilane, tetraethoxysilane, ethyltriethoxysilane and propyltriethoxysilane. Variation of final elemental composition was tested via change of monomer ratios and combinations. The main aim was to achieve low weight losses during cure and pyrolysis and high micromechanical properties. Gas chromatography and mass spectroscopy was used to analyse the by-products of cure and pyrolysis, indicating a prominent role of cyclosiloxane and polyhedral oligomeric silsesquioxane (POSS) oligomers. Best results were obtained with high contents of methyltriethoxysilane in the monomers mixture.
Źródło:: Acta Physica Polonica A; 2011, 120, 2; 326-330
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Formation of Perspective Composite Coatings by Ion-Beam Assisted Deposition
Autorzy:: Komarov, F.
Pilko, V.
Pogrebnjak, A.
Karvat, C.
Kiszczak, K.
Kozak, C.
Powiązania:: https://bibliotekanauki.pl/articles/1400425.pdf
Data publikacji:: 2013-05
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 68.55.Nq
Opis:: TiAlN, TiSiN, and TiCrN composite layers were deposited by magnetron sputtering and sliding - angle ion beam sputtering of the inner surface of hollow truncated cones of different compositions. The composition of both type coatings and component depth distributions were studied by the Rutherford backscattering spectrometry. The structural and phase analyses of the deposited films were performed by transmission electron microscopy and diffraction. Microhardness, wear resistance and friction coefficient of the coatings were also measured and discussed in the relationship with the structure and composition. Microhardness tests showed that the registered data varied in the range 10 to 50 GPa, depending on composition and concentration of components. The best wear protection results from the magnetron deposited Ti-Al-N systems in a narrow range of component concentrations. A minimal friction coefficient was revealed for the magnetron sputtered layers.
Źródło:: Acta Physica Polonica A; 2013, 123, 5; 800-803
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Mechanical Properties of $Zn-Ni-SiO_2$ Coating Deposited under X-ray Irradiation
Autorzy:: Poliak, N.
Anishchik, V.
Valko, N.
Karwat, C.
Kozak, C.
Opielak, M.
Powiązania:: https://bibliotekanauki.pl/articles/1378243.pdf
Data publikacji:: 2014-06
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 81.70.Bt
Opis:: Using X-ray microanalysis and scanning electron microscopy $Zn-Ni-SiO_2$ plating containing $SiO_2$ nanoparticles were studied. It was found that X-ray irradiation of the electrolyte leads to the increased Ni concentration in $Zn-Ni-SiO_2(X)$ films and the grain size is also increasing (the grain size is twice that in the unirradiated case). A thickness of $Zn-Ni-SiO_2(X)$ plating is 20 μm and a thickness of the $Zn-Ni-SiO_2$ plating is about 15 μm. The surface morphology was studied using AFM method. Increasing Ni concentration and $Ni_5Zn_{21}$ phase due to X-Ray irradiation of the electrolyte leading to the improved mechanical properties of the coating.
Źródło:: Acta Physica Polonica A; 2014, 125, 6; 1415-1417
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Formation and Characterization of Nanostructured Composite Coatings Based on the TiN Phase
Autorzy:: Komarov, F.
Konstantinov, S.
Pogrebnjak, A.
Pilko, V.
Kozak, C.
Opielak, M.
Powiązania:: https://bibliotekanauki.pl/articles/1198880.pdf
Data publikacji:: 2014-06
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 68.55.Nq
Opis:: Nanostructured thin-film coatings based on titanium nitride, doped with silicon, chromium and aluminium were the object of this study. The creation of a smooth transition layer was carried out by the changing of a supplying nitrogen flow to the vacuum chamber during the application. TiSiN, TiCrN and TiAlN coatings were deposited. The studies of the structure, elemental and phase composition of the coatings were carried out. Also, the performance of coatings was investigated. The results can be used in today's technology, such as mechanical engineering.
Źródło:: Acta Physica Polonica A; 2014, 125, 6; 1292-1295
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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