Temat: optical roughness - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Optical roughness calculation for material structural analysis of energy structure applications under DC plasma processes
Autorzy:: Pahsa, Alper
Tematy:: tokamak
reactor
plasma material interaction
sputtering
3D surface plot
optical roughness
reaktor
interakcja
plazma
napylanie
wykres powierzchni 3D
chropowatość optyczna; Pokaż więcej
Wydawca:: Centrum Badań i Innowacji Pro-Akademia
Powiązania:: https://bibliotekanauki.pl/articles/27323590.pdf Link otwiera się w nowym oknie
Opis:: Surface qualities make aluminium a low-DC plasma interaction candidate. Aluminum for energy system structure building is studied experimentally, with observations obtained. Aluminum is cheap and frequently utilized in aerospace applications. The selection of materials for new applications of thermonuclear fusion energy, such as Tokamak reactor walls and fusion-based spaceship thrust structures, is important to decide in the design phase. In this study, an experimental setup application is created with low DC-type He plasma ions processed on aluminium pellet surfaces. The physical changes of the aluminium pellet material as an example of an energy structure surface are analysed under a scanned array microscope and 3D surface plots to detect optical roughness attributes.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Investigation of surface after erosion using optical profilometry technique
Autorzy:: Tarasiuk, Wojciech
Szymczak, Tadeusz
Borawski, Andrzej
Tematy:: optical profilometry
erosion
surface layer
roughness
3D results; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/221072.pdf Link otwiera się w nowym oknie
Opis:: The paper reports experimental results of the analysis of the 145Cr6 steel surface after erosion using the profilometrical technique by means of interferometry streaks. Erosive tests were carried out using abrasive containing quartz sand used in water jet cutting. Differences in the intensity of erosive wear were dependent on the angle of the abrasive stream (10°; 15°; 20°; 30°; 60°; 90°). In order to determine the characteristic features of the surface layer after the impact of the erosive stream, its characteristic parameters, such as roughness Ra and Sa for linear and field measurements, were analysed. Geometrical features of the regions investigated, such as shape, depth, angle of the abrasive stream, are presented. The analysis was carried out in two-dimensional (2D) and three-dimensional (3D) coordinate systems.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Cost-effective titania layers over 100 nm thick : effect of annealing on the structural, morphological, and optical properties
Autorzy:: Zięba, Magdalena
Tyszkiewicz, Cuma
Gondek, Ewa
Wojtasik, Katarzyna
Nizioł, Jacek
Dorosz, Dominik
Starzyk, Bartłomiej
Szymczak, Patryk
Pakieła, Wojciech
Rogoziński, Roman
Karasiński, Paweł
Tematy:: sol-gel
titania layer
dip-coating
surface roughness
optical properties; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Stowarzyszenie Elektryków Polskich
Powiązania:: https://bibliotekanauki.pl/articles/27315694.pdf Link otwiera się w nowym oknie
Opis:: Titania dioxide (TiO₂) layers were synthesized via the acid-catalysed sol-gel route using titania (IV) ethoxide, and then annealed at temperatures varying in the range of 150-700 °C. The research concerned the effect of annealing temperature on the structure of TiO₂ layers, their surface morphology, and their optical properties. Further, X-ray diffractometry, and Raman spectroscopy were used to determine the structure of TiO₂ layers. Scanning electron and atomic force microscopy were used to study the surface morphology of TiO₂ layers. Transmittance, reflectance, absorption edge, and optical homogeneity were investigated by UV-VIS spectrophotometry, while the refractive index and thicknesses of TiO₂ layers were measured using a monochromatic ellipsometer. Chromatic dispersion characteristics of the complex refractive index were determined using spectroscopic ellipsometry. Structural studies have shown that the TiO₂ layers annealed at temperatures up to 300 °C are amorphous, while those annealed at temperatures exceeding 300 °C are polycrystalline containing only anatase nanocrystals with sizes increasing from 6 to 20 nm with the increase of the annealing temperature. Investigations on the surface morphology of TiO₂ layers have shown that the surface roughness increases with the increase in annealing temperature. Spectrophotometric investigations have shown that TiO₂ layers are homogeneous and the width of the indirect optical band gap varies with annealing temperature from 3.53 eV to 3.73 eV.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: A low-cost, simple optical setup for a fast scatterometry surface roughness measurements with nanometric precision
Autorzy:: Kucharski, D.
Zdunek, H.
Tematy:: scatterometry
surface texture
optical measurement systems
surface metrology
surface roughness; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/200883.pdf Link otwiera się w nowym oknie
Opis:: We present a prototype of a simple, low-cost setup for a fast scatterometric surface texture measurements. We used a total integrated scatter method (TIS) with a semiconductor laser (λ = 638 nm) and a Si photodiode. Using our setup, we estimated the roughness parameters Rq for two reference surfaces (Al mirrors with flatness λ/10) and seven equal steel plates to compare. The setup is easily adaptable for a fast, preliminary manufacturing quality control. We show is possible to construct a low-cost measurement system with nanometric precision.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Large Area Concrete Surface Topography Measurements Using Optical 3D Scanner
Autorzy:: Majchrowski, R.
Grzelka, M.
Wieczorowski, M.
Sadowski, Ł.
Gapiński, B.
Tematy:: 3D surface metrology
concrete
optical method
roughness
topography measurement; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/221494.pdf Link otwiera się w nowym oknie
Opis:: The paper presents examinations of the surface of base concrete with a 3D scanner. Two base concrete surfaces, differently prepared, were examined, together with two measurement strategies: simple and fast 3D scanning and partial scanning in selected areas corresponding to the device measurement space. In order to complete the analysis of a concrete surface topography an original Matlab-based program TAS (Topography Analysis and Simulation) was developed for both 2D and 3D surface analyses. It enables data processing, calculation of parameters, data visualization and digital filtration.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Experimental analysis by measurement of surface roughness variations in turning process of duplex stainless steel
Autorzy:: Krolczyk, G. M.
Legutko, S.
Tematy:: turning
coatings
friction-reducing
optical microscopy
surface roughness analysis and models; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Powiązania:: https://bibliotekanauki.pl/articles/220659.pdf Link otwiera się w nowym oknie
Opis:: The objective of the investigation was to identify surface roughness after turning with wedges of coated sintered carbide. The investigation included predicting the average surface roughness in the dry machining of Duplex Stainless Steel (DSS) and the determination of load curves together with roughness profiles for various cutting conditions. The load curves and roughness profiles for various cutting wedges and variable cutting parameters were compared. It has been shown that dry cutting leads to a decrease in friction for lubricated surfaces, providing a small initial contact area where the surface is contacted. The study has been performed within a production facility during the production of electric motor parts and deep-well pumps.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Thickness evaluation of the carbon coatings manufactured on magnesium alloys using optical profiler
Autorzy:: Gołąbczak, M.
Jacquet, P.
Tematy:: AZ31 magnesium alloy
PACVD technology
carbon coating
optical profiler
roughness parameters; Pokaż więcej
Wydawca:: Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Powiązania:: https://bibliotekanauki.pl/articles/99752.pdf Link otwiera się w nowym oknie
Opis:: One of the problems in identification of carbon nanocoatings is measurement of their thickness. There are a lot of methods which allow for determination of thickness i.e. SEM analysis of cross section of sample with manufactured coating, nanoindentation analysis with using DSP (Digital Signal Processing) method, roughness analysis with using different kind of profilers. In this paper the technology of manufacturing of carbon coatings on AZ31 magnesium light alloy has been depicted and optical profiler has been used for thickness evaluation of these coating. Obtained results allowed for precise estimation of manufactured carbon coatings thickness. In this way it was also possible to compare obtained thickness results with thickness evaluated by other methods.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: In situ optical extinction measurement for locally control of surface plasmon resonance during nanosecond laser irradiation of silver ion exchanged silicate glass
Autorzy:: Goutaland, François
Sow, Mohamed Chérif
Ollier, Nadège
Véron, Olivier
Pellerin, Nadia
Dzierżęga, Krzysztof
Grabiec, Michał
Pellerin, Stéphane
Blondeau, Jean-Philippe
Wolak, Aleksandra
Opis:: Online UV/visible extinction measurement have been achieved during nanosecond Nd:YAG laser irradiation at 532 nm of a silver-exchanged silicate glass after each shot. We have explained the evolution of the integrated spectral evolution with the help of a few observed spots after the laser/glass interaction and completed them by optical and surface measurements. This optical method allows to in situ follow silver ions precipitation in nanoparticles (NPs) and the consequently surface plasmon resonance evolution (SPR). In this study, we focus on the interest of this method for one silver-exchanged soda-lime glass by direct observation of the sample surface. Scanning electron microscopy measurement and optical microscopy were used to identify the various ablation mechanisms. Profilometry was used to evaluate the material distribution and the surface roughness evolution (Rms parameter). Thus, we explain the silver NPs effect on glass matrix at various micrometric scales according to the deposited fluence and silver concentration.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego

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Skocz do pozycji: 9.

Tytuł:: Zastosowanie optycznych technik pomiarowych do analizy topografii powierzchni obrobionej w toczeniu
The use of optical measuring techniques for the analysis of machined surface topography in turning
Autorzy:: Zawada-Tomkiewicz, A.
Tematy:: toczenie stali hartowanej
model chropowatości powierzchni
metody optyczne
hard turning
surface roughness model
optical methods; Pokaż więcej
Wydawca:: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Powiązania:: https://bibliotekanauki.pl/articles/154096.pdf Link otwiera się w nowym oknie
Opis:: Artykuł zawiera analizę powierzchni obrobionej po toczeniu stali hartowanej. Bazując na modelu strefy skrawania został przeanalizowany obszar tworzenia chropowatości powierzchni. Zjawiska obserwowano przy zastosowaniu skaningowego mikroskopu elektronowego (SEM) wraz z analizą składu oraz interferometru światła białego. Zdjęcia ostrza skrawającego zarówno od strony powierzchni przyłożenia, jak i natarcia przeanalizowano z punktu widzenia tworzenia powierzchni. Dokonano analizy zdjęć powierzchni oraz ilościowego porównania mikronierówności powierzchni po toczeniu z teoretycznym odwzorowaniem ostrza w materiale obrabianym.
The article contains an analysis of machined surface after turning of hardened steel. The area of formation of surface roughness was analyzed based on the model of the machining zone [1]. Normalized unit force distribution on the rounded cutting edge indicates the presence, outside the chip formation and the creation of surface area, an area of dominant normal stress. This area takes part in the phenomenon of separation of the material. Depending on the elasto-plastic properties of work material at a given temperature (the ability to strengthen before the tool) the material from the zone of dominant normal stresses is burnished and flows under the tool causing the increase of the surface roughness. For hardened steel the plastic flow capacity is limited. This reduces the amount of material side flow, described also in [2-8]. The phenomenon was observed using scanning electron micro-scopy (SEM) [9] together with EDS analysis [10] and also with the use of white light interferometer[11-14]. Machined surface and tool wear in hard turning were particularly investigated in [15-21]. In this paper digital images of the cutting edge from flank and rake faces were analyzed from the perspective of creating a machined surface. An analysis of surface images was performed together with the quantitative comparison of surface asperities after turning to the theoretical roughness profile.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Badania struktury geometrycznej powierzchni wewnątrzustrojowej protezy przełyku
Gemetrical structure investigation of the surface of internal oesophagus prosthesis
Autorzy:: Nowak, A. J.
Dobrzański, L. A.
Tematy:: chropowatość powierzchni
proteza przełyku
materiały kompozytowe
profilometria optyczna
surface roughness
oesophageal prosthesis
composite materials
optical profilometry; Pokaż więcej
Wydawca:: Sieć Badawcza Łukasiewicz - Instytut Inżynierii Materiałów Polimerowych i Barwników
Powiązania:: https://bibliotekanauki.pl/articles/278411.pdf Link otwiera się w nowym oknie
Opis:: W pracy przedstawiono metodologie badań chropowatości powierzchni wewnętrznej i zewnętrznej wewnątrzustrojowej protezy przełyku wykonanej z długowłóknistego materiału kompozytowego o osnowie silikonu medycznego. W ramach rozwinięcia powierzchni zewnętrznej protezy zastosowano teksturowanie, które miało ułatwić osadzanie się ludzkich komórek i przerost tkanką własną zaiplantowanego pacjenta. Badania wykonano metodą liniowego, mechanicznego pomiaru stykowego oraz w ramach weryfikacji metodą profilometrii optycznej na mikroskopie konfokalnym. Celem pracy było zbadanie chropowatości powierzchni opracowanej protezy przełyku przed i po teksturowaniu aby ocenić jej wpływ na przyszłościowe zastosowanie protezy.
The research methodology of the roughness of internal and external surface of internal oesophageal prosthesis made of long-fibre composite material with medical silicone matrix is described in the article. External surface texturing of the prosthesis was applied to facilitate human cells deposition and hypertrophy of the tissue in the body of the patient, Linear, mechanical contact-measurement method and, for verification, optical profile measurement in confocal microscope were used. The aim of the work was roughness investigation of the surface of developed oesophageal prosthesis before and after texturing, to estimate its influence on future application of prosthesis.
Dostawca treści:: Biblioteka Nauki

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