Autor: Bramowicz, Mirosław. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Analysis of the Surface Microtexture of Sputtered Indium Tin Oxide Thin Films
Autorzy:: Ţălu, Ştefan
Kulesza, Sławomir
Bramowicz, Miroslaw
Stępień, Krzysztof
Dastan, D.
Powiązania:: https://bibliotekanauki.pl/articles/2049693.pdf
Data publikacji:: 2021
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: AFM
DC magnetron sputtering
ITO thin films
stereometric analysis
3-D surface microtexture
Opis:: The present research work involves the study of the 3-D surface microtexture of sputtered indium tin oxide (ITO) prepared on glass substrates by DC magnetron at room temperature. The samples were annealed at 450°C in air and were distributed into five groups, dependent on ambient combinations applied, as follows: I group, using argon (Ar); II group, using argon with oxygen (Ar+O2); III group, using argon with oxygen and nitrogen (Ar+O2+N2); IV group, using argon with oxygen and hydrogen (Ar+O2+H2); and V group, using argon with oxygen, nitrogen, and hydrogen (Ar+O2+N2+H2). The characterization of the ITO thin film surface microtexture was carried out by atomic force microscopy (AFM). The AFM images were stereometrically quantitatively analyzed to obtain statistical parameters, by ISO 25178-2: 2012 and ASME B46.1-2009. The results have shown that the 3-D surface microtexture parameters change in accordance with different fabrication ambient combinations.
Źródło:: Archives of Metallurgy and Materials; 2021, 66, 2; 443-450
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Atomic force microscopy with fractal studies of temperature induced changes in the surface topography of polymeric materials
Zastosowanie mikroskopii sił atomowych i analizy fraktalnej do badania wpływu temperatury na topografię powierzchni materiałów polimerowych
Autorzy:: Rydzkowski, Tomasz
Kulesza, Sławomir
Bramowicz, Mirosław
Michalska-Pożoga, Iwona
Powiązania:: https://bibliotekanauki.pl/articles/946973.pdf
Data publikacji:: 2020
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Chemii Przemysłowej
Tematy:: temperature
surface topography
polymeric materials
atomic force microscopy
fractal analysis
differential scanning calorimetry
low density polyethylene
recirculation
temperatura
topografia powierzchni
materiały polimerowe
mikroskopia sił atomowych
analiza fraktalna
różnicowa kalorymetria skaningowa
polietylen małej gęstości
recyrkulacja
Opis:: Changes in the surface topography of polymeric materials can be analyzed to find the correspondence between observed surface features and specific external factors that might also influence physical and functional properties of the investigated material. In this work, atomic force microscopy (AFM) measurements were carried out to investigate the thermal changes in the surface topography as well as in the inner structure of the low density polyethylene (LDPE) samples subjected to 10 recirculations (rLDPE). For better assessment, fractal analysis and AFM results were additionally compared to DSC tests results.
Analiza zmian topografii powierzchni materiałów polimerowych pozwala wyznaczyć zależności między obserwowanymi cechami powierzchni a określonymi czynnikami zewnętrznymi, które mogą wpływać na właściwości fizyczne i funkcjonalne badanego materiału. W niniejszej pracy metodą mikroskopii sił atomowych (AFM) oceniano zmiany termiczne topografii powierzchni, a także wewnętrznej struktury próbek polietylenu małej gęstości (LDPE) poddanych 10-krotnej recyrkulacji (rLDPE). Wyniki AFM i analizy fraktalnej porównywano z wynikami badań metodą różnicowej kalorymetrii skaningowej (DSC).
Źródło:: Polimery; 2020, 65, 1; 25-32
0032-2725
Pojawia się w:: Polimery
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Characterization of oxide layers formed on 10CrMo9-10 steel operated for a long time in the power industry
Autorzy:: Gwoździk, Monika
Ullrich, Christiane
Schimpf, Christian
Rafaja, David
Kulesza, Sławomir
Bramowicz, Mirosław
Powiązania:: https://bibliotekanauki.pl/articles/2086836.pdf
Data publikacji:: 2021
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: power industry
10CrMo9-10 steel
oxide layers
energetyka
stal 10CrMo9-10
warstwy tlenkowe
Opis:: This paper presents the results of diagnostic examinations conducted on the coils of super-heaters made of 10CrMo9‒10 steel that were operated in industrial conditions at 480°C for 130 thousand hours. The tube was exposed in a coal-fired boiler. The chemical and phase composition of the oxide/deposit layers formed on both sides of the tube walls (outside – flue-gas side and inside – steam side) and their sequence was examined using optical microscopy, scanning electron microscopy with electron backscatter diffraction and energy-dispersive X-ray spectroscopy, and X-ray diffraction. The changes in the mechanical properties caused by corrosion and aging processes were concluded from the hardness measurements. In addition, the nature of cracks in the oxide layers caused by pressing a Vickers indenter was determined. The results of these examinations have shown a high degradation of steel on the flue-gas inflow side and identified the main corrosion products and mechanisms.
Źródło:: Bulletin of the Polish Academy of Sciences. Technical Sciences; 2021, 69, 4; e137730, 1--10
0239-7528
Pojawia się w:: Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Influence of gas detonation spraying parameters on the geometrical structure of Fe-Al intermetallic protective coatings
Autorzy:: Chrostek, Tomasz
Bramowicz, Mirosław
Rychlik, Kazimierz
Wojtkowiak, Adam
Senderowski, Cezary
Powiązania:: https://bibliotekanauki.pl/articles/298459.pdf
Data publikacji:: 2019
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie
Tematy:: GDS
Detonation Gas Spraying
Fe-Al
intermetallic alloys
fractal analysis
RMS
Opis:: The paper presents the results of an analysis of the geometrical structure of Fe-Al intermetallic protective coatings sprayed under specified gun detonation spraying (GDS) conditions. Two barrel lengths, two powder injection positions (PIP) at the moment of spark detonation, and two numbers of GDS shots with 6.66 Hz frequency were applied as variable parameters in the GDS process. Surface profile measurements were conducted by contact profilometry with the use of the TOPO-01 system and the Mitutoyo SJ 210 profilometer. The measured parameters were used to analyze surface topography in two-dimensional (2D) and three-dimensional (3D) systems. It was assumed that roughness can be regarded as a non-stationary parameter of variance in surface amplitude which is highly dependent on the sampling rate and spraying distance. Therefore, changes in surface amplitude parameters and functional properties were analyzed across segments with a length (ln) of 1.25, 4 and 12.5 mm. The development of the geometric structure of the surface was analyzed with the RMS (Root Mean Square) fractal method, and the geometric structure of the surface stretched by several orders of magnitude was evaluated based on the correlation between roughness (Rq), segment length (ln) and fractal dimension (D). The RMS method and the calculated fractal dimension (D) supported the characterization of the geometric structure of intermetallic Fe-Al protective coatings subjected to GDS under the specified process conditions based on the roughness profiles of surface segments with a different length (ln).
Źródło:: Technical Sciences / University of Warmia and Mazury in Olsztyn; 2019, 22(3); 249-262
1505-4675
2083-4527
Pojawia się w:: Technical Sciences / University of Warmia and Mazury in Olsztyn
Dostawca treści:: Biblioteka Nauki