Temat: layers - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Athrombogenic diffusive TiN surface layers aplication and evaluation in polish implantable rotary continous flow blood pump
Autorzy:: Gonsior, M.
Kustosz, R.
Gawlikowski, M.
Darlak, M.
Altyntsev, I.
Głowacki, M.
Wierzchoń, T.
Tematy:: flow blood pump
surface layers
TiN layers; Pokaż więcej
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Powiązania:: https://bibliotekanauki.pl/articles/284351.pdf Link otwiera się w nowym oknie
Dostawca treści:: Biblioteka Nauki

Artykuł

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Skocz do pozycji: 2.

Tytuł:: The influence of copolymer composition and coating method on drug release from biodegradable surface layer
Autorzy:: Jelonek, K.
Jaworska, J.
Dobrzyński, P.
Kasperczyk, J.
Pastusiak, M.
Sobota, M.
Tematy:: copolymers
biodegrability
surface layers; Pokaż więcej
Wydawca:: Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Powiązania:: https://bibliotekanauki.pl/articles/285024.pdf Link otwiera się w nowym oknie
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Investigations of optical and thermal properties of surface layers of Cd1-xBexTe samples by the photoacoustic method
Autorzy:: Bychto, Leszek
Maliński, Mirosław
Chrobak, Łukasz
Zakrzewski, Jacek
Boumhamdi, Mohammed
Tematy:: thermal parameters
optical parameters
surface layers
photoacoustics; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Stowarzyszenie Elektryków Polskich
Powiązania:: https://bibliotekanauki.pl/articles/59112951.pdf Link otwiera się w nowym oknie
Opis:: The work presents the results of a research on the photoacoustic spectra of thin surface layers of Cd₁-xBexTe crystals formed by grinding and polishing their surfaces. As a result of matching the theoretical and experimental photoacoustic spectra, thermal and optical parameters of these layers were determined. Thermal parameters of the surface layers, such as thermal conductivity and thermal diffusivity, turned out to be much worse than the analogous parameters of the substrate. The increase in the optical absorption of surface layers for photon energies below Eg was also determined.
Dostawca treści:: Biblioteka Nauki

Artykuł

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Skocz do pozycji: 4.

Tytuł:: The analysis of finishing tooling influence on corrosion properties researched by EIS
Autorzy:: Labuda, W.
Charchalis, A.
Tematy:: burnishing
surface layers
angular momentum pump
corrosion properties
EIS; Pokaż więcej
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Powiązania:: https://bibliotekanauki.pl/articles/248058.pdf Link otwiera się w nowym oknie
Opis:: Angular momentum pumps are very often applied onboard ships. These pumps are used in cooling circuits of medium and high power engines, power plant boilers and in bilge, ballast and fire installations. Very extensive use of angular momentum pumps on board is connected with their numerous advantages. During operation the wear of marine hull, the rotor and shaft seals take place. The research attempts to increase the service life of shafts. The article presents the research results referring to the analysis of the influence of finish treatment (lathing, grinding and burnishing) on the corrosion properties of steel applied to marine pump shafts. The research was performed on a roller of 40 mm in diameter made of X5CrNi18-10 (AISI 304 L) stainless steel. The lathing process was carried out by means of a WNMG WF 080408 Sandvik Coromant cutting tool with replaceable inserts. The grinding process was performed by grinding attachment for lathes. The 1 - 80x10x32 - 99C 80-N V grinding wheel was used for the process. The process of burnishing was done by SRMD burnisher by Yamato. In addition, the influence of the burnisher passes number on the corrosion properties was determined. The paper will present the results of electrochemical impedance spectroscopy research. To conduct the survey the Atlas 0531 EU and IA potentiostat was used. Determination of the corrosion process parameters was performed computer programs: AtlasLab 2.0 and EIS Spectrum Analyzer.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: The analysis of finishing tooling influence on corrosion properties researched by potentiodynamic method
Autorzy:: Labuda, W.
Charchalis, A.
Tematy:: plastic tooling
burnishing
surface layers
angular momentum pump
corrosion properties; Pokaż więcej
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Powiązania:: https://bibliotekanauki.pl/articles/246859.pdf Link otwiera się w nowym oknie
Opis:: Angular momentum pumps are very often applied onboard ships. These pumps are used in cooling circuits of medium and high power engines, power plant boilers and in bilge, ballast and fire installations. Very extensive use of angular momentum pumps on board is connected with their numerous advantages. During operation the wear of marine hull, the rotor and shaft seals take place. The research attempts to increase the service life of shafts. The article presents the research results referring to the analysis of the influence.. of finish treatment (lathing, grinding and burnishing) on the corrosion properties of steel applied to marine pump shafts. The research was performed on a roller of 40 mm in diameter made of X5CrNi 18-10 (AISI 304 L) stainless steel. The lathing process was carried out by means of a WNMG WF 080408 Sandvik Coromant cutting tool with replaceable inserts. The grinding process was performed by grinding attachment for lathes. The 1 - 80x10x32 - 99C 80-N V grinding wheel was used for the process. The process of burnishing was done by SRMD burnisher by Yamato. In addition, the influence of the burnisher passes number on the corrosion properties was determined. The paper will present the results of potentiodynamic research. To conduct the survey the Atlas 0531 EU and IA potentiostat will be used. Determination of parameters of the corrosion process will be executed on Elfit2 computer program.
Dostawca treści:: Biblioteka Nauki

Artykuł

na półce

Skocz do pozycji: 6.

Tytuł:: The analysis of the influence of the burnishing process on corrosion properties of steel applied to sea water pump shafts
Autorzy:: Labuda, W.
Starosta, R.
Charchalis, A.
Tematy:: plastic tooling
burnishing
surface layers
angular momentum pump
corrosion properties; Pokaż więcej
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Powiązania:: https://bibliotekanauki.pl/articles/247208.pdf Link otwiera się w nowym oknie
Opis:: Angular momentum pumps are very often applied onboard ships. These pumps are used in cooling circuits of medium and high power engines, power plant boilers and in bilge, ballast and fire installations. Very extensive use of angular momentum pumps on board is connected with their numerous advantages. During operation the wear of marine hull, the rotor and shaft seals take place. The research attempts to increase the service life of shafts. The article presents the research results referring to the analysis of the influence of lathing and burnishing on the corrosion properties of steel applied to marine pump shafts. The research was performed on a roller of 40 mm in diameter made of X5CrNi 18-10 (AISI304 L) stainless steel. The lathing process was carried out by means of a WNMG WF 080408 Sandvik Coromant cutting tool with replaceable inserts. The process of burnishing was done by SRMD burnisher by Yamato. In addition, the influence of the burnisher passes number on the corrosion properties was determined. The paper will present the results of potentiodynamic research. To conduct the survey the Atlas 0531 EU & IA potentiostat will be used. Determination of parameters of the corrosion process will be executed on Elfit2 computer program.
Dostawca treści:: Biblioteka Nauki

Artykuł

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Skocz do pozycji: 7.

Tytuł:: Estimation of the influence of burnishing process on steel X5CRNIL810 internal stresses
Autorzy:: Labuda, W.
Starosta, R.
Zdunek, J.
Tematy:: burnishing
surface layers
stainless steel
angular momentum pump
internal stress; Pokaż więcej
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Powiązania:: https://bibliotekanauki.pl/articles/247759.pdf Link otwiera się w nowym oknie
Opis:: Angular momentum pumps are frequently applied on board ships. As the pumps are working in hard conditions they are made from materials resistant to cavitation wear and electrochemical corrosion. The most popular damage of pump shaft is neck wear in place where seals are mounted. Burnishing, as modern finish plastic tooling method, makes it possible to get high technological quality of elements. The proposed process of burnishing shaft pins is designed to increase the service life of marine seawater pump shaft installations, which should enhance the economic effect. Thanks to its numerous advantages burnishing was proposed to angular momentum pumps shafts tooling instead of finish machining (finish turning, grinding, lapping). The goal was to estimate optimal burnishing parameters which enable receiving biggest strengthening and lowest roughness factor of angular momentum pumps shafts. The tool used was one-roll burnishing tool SRMD type produced by Yamato. The aim of this study was to determine the internat stresses occurring in the subsurface layer after machining carried out, and after burnishing the surface of marine pump shaft pins made of X5CrNH810 stainless steel.
Dostawca treści:: Biblioteka Nauki

Artykuł

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Skocz do pozycji: 8.

Tytuł:: Metoda badania przebiegu zużycia sekcji tłoczących pomp wtryskowych silników ZS
Method investigation process of wear in pumping sections of injection pump used in diesel engines
Autorzy:: Gil, L.
Ignaciuk, P.
Niewczas, A.
Tematy:: pompy wtryskowe
tribologia
warstwa wierzchnia
injection pump
tribology
surface layers; Pokaż więcej
Wydawca:: Instytut Naukowo-Wydawniczy "SPATIUM"
Powiązania:: https://bibliotekanauki.pl/articles/312657.pdf Link otwiera się w nowym oknie
Opis:: W artykule omówiono metodę oceny zużycia tribologicznego sekcji tłoczących pomp wtryskowych. Określono zbiór parametrów, które mogą być wskaźnikami zużycia sekcji. Przedstawiono wyniki badań zużycia sekcji tłoczących pompy wtryskowej firmy MOTORPAL wykorzystywanej w silniku 4CT90.
In the paper presents a method to assess wear of pumping sections of injection pumps. A set of parameters was defined, which can be used as indicators of section's wear. Some results of experimental investigation of wear in pumping sections were presented. Verification was done using injection pump MOTORPAL used in a 4CT90 Diesel engine.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Radiation-stimulated changes in the characteristics of surface-barrier AL–SI–BI structures with different concentrations of dislocations at the crystal surface
Autorzy:: Pavlyk, B.
Kushlyk, M.
Slobodzyan, D.
Matvijishyn, I.
Lys, R.
Jałbrzykowski, M.
Tematy:: silicon
dislocations
surface-barrier structures
surface layers
radiation
reconstruction of defects; Pokaż więcej
Wydawca:: Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Powiązania:: https://bibliotekanauki.pl/articles/386556.pdf Link otwiera się w nowym oknie
Opis:: We report the results of studies for the radiation-stimulated changes in electro-physical characteristics of surface-barrier Al–Si–Bi structures based on p-Si. We demonstrate that the X-ray irradiation is accompanied by different processes which depend on the density of the dislocations in the original silicon crystals. A usual evolution of the existing structural defects and their radiationstimulated ordering dominate when the concentration remains low enough. Increase in the concentration causes the increasing role of generation of additional radiation defects. Modelling of the underlying physical processes has testified that the near-contact Si layers are strained. They act as getters for the structural defects and impurities.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Microstructure and electrochemical properties of the vanadium alloys after low-temperature nitrogen plasma treatment
Autorzy:: Duriagina, Z. A.
Ryzhak, D. D.
Kulyk, V. V.
Tepla, T. L.
Lemishka, I. A.
Bohun, L. I .
Tematy:: vanadium alloy
surface layers
microhardness
corrosion
stop wanadu
warstwy powierzchniowe
mikrotwardość
korozja; Pokaż więcej
Wydawca:: Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
Powiązania:: https://bibliotekanauki.pl/articles/1818517.pdf Link otwiera się w nowym oknie
Opis:: Purpose: The proposed research aims to determine the expediency of surface treatment of vanadium alloys of V-Cr and V-Ti systems due to irradiation of their surfaces with low- temperature nitrogen plasma using plasma torch NO-01. Design/methodology/approach: The investigation of microstructure and X-ray fluorescence analysis (XRF) of the samples were performed using an electron microscope TESCAN Vega3. The microhardness (Vickers hardness) of the samples was measured before and after surface treatment. The study of corrosive properties of the surface layers was performed by an electrochemical impedance spectroscopy (EIS) method. Corrosion damages were identified using impedance dependences. Findings: The microstructure of the surface layers of the V-8Ti, V-15Cr, and V-35Cr alloys in the initial state and after plasma treatment have been investigated. The chemical composition of the surface layers is determined and comparative measurements of the microhardness of these alloys are carried out. Corrosion-electrochemical properties (corrosion potentials, electrochemical impedance spectroscopy and constructed potential-dynamic polarization curves) of investigated alloys after treatment with nitrogen plasma are evaluated. Research limitations/implications: The results obtained using laboratory samples should be checked at the conditions of power equipment operation. Practical implications: This treatment has advantages over other methods of surface engineering since it provides strong surface plastic deformation and the possibility of formation of secondary phases resulting in increases in surface hardness and corrosion resistance. Originality/value: Vanadium alloys have significant advantages over other structural materials due to their high thermal conductivity and swelling resistance, high strength and plasticity up to temperatures of 700-800°C, and good weldability.
Dostawca treści:: Biblioteka Nauki

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