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Search results for: TITANIUM OXIDE LAYERS
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Napawane laserowo warstwy na bazie kobaltu - zmienność morfologii i własności. Część 2. Cobalt base, laser cladding layers - morfology and properties variation. Part 2
PublicationPrzedmiotem badań były szczegóły budowy warstwy napawanej laserowo z zastosowaniem trzech ściegów oraz analiza wpływu zróżnicowanej budowy warstwy na jej mikrotwardość.
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Absorbciâ vodoroda i povedenie vodoroda v slaâh titanovyh silavov s modificirovannoj poverhnost''û = Hydrogen absorption and hydrogen effects in the modified surface layers of Ti alloys
PublicationW pracy przedstawiono rezultaty badań absorpcji wodoru w stopach tytanu ze zmodyfikowaną za pomocą metod multipleksowych powierzchnią. W wyniku badań stwierdzono, iż po nadtapianiu laserowym w warunkach kriogenicznych, stopy tytanu wykazuja najwyższą zdolność absorpcji wodoru w wytworzonej warstwie wierzchniej.
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Effect of tungsten content on the corrosion resisntance of the cobalt base PTA cladding layers = Wpływ zawartości wolframu w stopach kobaltu na odporność korozyjną warstw napawanych plazmowo
PublicationBadaniom poddano napawane plazmowo warstwy wytworzone na powierzchni przylgni zaworów wylotowych silnie obciążonych silników Diesla stosowanych w okrętownictwie. Jako materiał do napawania zastosowano trzy rodzaje proszków wykonanych ze stopów na bazie kobaltu i chromu zawierających różne ilości wolframu ( 4.9, 5.3 i 9 % masowych). Wykonane napoiny wielowarstwowe po odpowiednim przygotowaniu poddano działaniu podwyższonej temperatury...
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Magnetic properties of of lead-silicate glasses and nanocomposites doped with iron oxide
Open Research DataMagnetic properties of iron-doped glasses and glass-ceramics were studied. Two different sets of glass samples were prepared. The first group of samples has the composition of (50 − 0.5x)SiO2–(50 − 0.5x)PbO– xFe2O3, where x = 15 and 20 (in mol%). Composition of the second group was 50SiO2–(50−x)PbO–xFe2O3, where x=15, 20 and 25 (in mol%). All sampleswere...
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Structure and optical measurements of Eu doped tellurium oxide thin films
Open Research DataThin films were deposited by magnetron sputtering method and simultaneously heated at 200 oC. Presence of Eu ions and their valence states was confirmed by X-ray photoemission spectroscopy measurements. The structure of the films as well as the influence of europium dopant on crystalline structure of the films was examined by X-ray diffraction method. ...
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The viscometric evaluation of the gelation rate the chitosan-metal oxide hydrogel systems.
Open Research DataThe dataset shows the change in the viscosity of a hydrogel medium over time. Viscometric measurement was used as a universal method for determining the cross-linking rate of chitosan hydrogel using metal oxides or other solutions with a negative net charge. The method was prepared as a method of predicting the kinetics of additive manufacturing using...
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Optimization of Hydrogen Utilization and Process Efficiency in the Direct Reduction of Iron Oxide Pellets: A Comprehensive Analysis of Processing Parameters and Pellet Composition
PublicationThe article deals with the H2 consumption for different processing conditions and the composition of the processed pellets during the direct reduction process. The experiments are carried out at 600–1300 °C, with gas pressures of 1–5 bar, gas flow rates of 1–5 L min−1, and basicity indices of 0 to 2.15. Pellets with different compositions of TiO2, Al2O3, CaO, and SiO2 are analyzed. The gas flow rate is crucial, with 0–10 L min−1...
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Effects of dietary supplementation of myco-fabricated zinc oxide nanoparticles on performance, histological changes, and tissues Zn concentration in broiler chicks
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Ameliorative Role of Cerium Oxide Nanoparticles Against Fipronil Impact on Brain Function, Oxidative Stress, and Apoptotic Cascades in Albino Rats
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Zinc Oxide Nanoparticles Impair the Integrity of Human Umbilical Vein Endothelial Cell Monolayer <I>In</I> <I>Vitro</I>
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Thermally induced formation of zinc oxide nanostructures with tailoring morphology during metal organic framework (MOF-5) carbonization process
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Evaluation of W-containing Sr1−Ba Fe0.75W0.25O3– (x= 0, 0.5, 1) anode materials for solid oxide fuel cells
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Optimizing the Copper Content in GdBa0.5Sr0.5Co2-XCuxO5+δ Double Perovskites as the High Performance Oxygen Electrodes for Reversible Solid Oxide Cells
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Optimizing the Copper Content in GdBa0.5Sr0.5Co2-XCuxO5+δ Double Perovskites as the High Performance Oxygen Electrodes for Reversible Solid Oxide Cells
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Injection molding of transparent polymeric materials with 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide for enhanced fire retardancy
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Characteristics of La 0.8 Sr 0.2 Ga 0.8 Mg 0.2 O 3-δ -supported micro-tubular solid oxide fuel cells with LaCo 0.4 Ni 0.6-x Cu x O 3-δ cathodes
PublicationIn this study, micro-tubular solid oxide fuel cells (T-SOFCs) with extruded La0.8Sr0.2Ga0.8Mg0.2O3-δ (LSGM) electrolyte as the mechanical support and LaCo0.4Ni0.6O3-δ (LCNO) or LaCo0.4Ni0.4Cu0.2O3-δ (LCNCO) as cathodes were prepared and characterized. Partial substitution of Cu for the Ni-ion positions in the LCNO lattices was found to significantly enhance the densification and accelerate the grain growth. The porosity-corrected...
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Tytanowa międzywarstwa w łącznikach do spawania Al i stopów AlMg ze stalą=Titanium interlayer in transition joints to welding aluminium and aluminium alloys AlMg with steel
PublicationPrzedstawiono idee stosowania łączników i ich wytwarzanie oraz własności i niedostatki obecnie stosowanych łączników. Zaprezentowano wyniki prób technologicznych wytwarzania oraz wyniki badań mechanicznych i strukturalnych trójwarstwowego łącznika stal-tytan-aluminium.
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Stone cutting industry waste-supported zinc oxide nanostructures for ultrasonic assisted decomposition of an anti-inflammatory non-steroidal pharmaceutical compound
PublicationPowdered stone waste (PSW) obtained from a stone cutting industrial unit was applied as support for the immobilization of nano-sized ZnO to be utilized as an effective catalyst for the catalytic conversion of acetaminophen (ACE) under ultrasonication. The incorporation of ZnO nanostructures into PSW structure enhanced the specific surface area and pore volume of the as-prepared nanocompound. The change in the value of zero point...
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Luminescent properties of undoped and Ce3+ doped crystals in Y2O3 Lu2O3 Al2O3 triple oxide system grown by micro-pulling-down method
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Viability and intracellular nitric oxide generation in the umbilical cord blood CD34+CD133– and CD34+CD133+ cell populations exposed to local anaesthetics
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Study of Mid-Infrared Emission and Structural Properties of Heavy Metal Oxide Glass and Optical Fibre Co-Doped with Ho3+/Yb3+ Ions
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An enhanced electrochemical nanohybrid sensing platform consisting of reduced graphene oxide and sulfanyl metalloporphyrazines for sensitive determination of hydrogen peroxide and l -cysteine
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Application of biocompatible and ultrastable superparamagnetic iron(iii) oxide nanoparticles doped with magnesium for efficient magnetic fluid hyperthermia in lung cancer cells
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Mateusz Kopec Dr hab. inż.
PeopleHead of the Materials and Structural Testing Laboratory in Institute of Fundamental Technological Research PAS and Academic visitor in Imperial College London. Lecturer and Master/PhD students supervisor in Doctoral School of IPPT PAN and TIB PAN, and Imperial College London. Member of Polish Materials Science Society, Member of the Board of Polish Society of Theoretical and Applied Mechanics, and Council Member of the European...
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Tensile strength test of PE foils modified with zinc oxide and zinc salts
Open Research DataThis dataset contains the results of PE foils mechanical tests, in which the material was evaluated for strength and extensibility at the moment of breaking and based on the same tests preceded by material fatigue in 50 stretching cycles. The principle of the method is to stretch the test sample placed in the clamps of the stretching apparatus at a...
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Anna Lisowska-Oleksiak prof. dr hab.
PeopleAnna Lisowska-Oleksiak, born in 1952, has been working at GUT since 1977. Currently is employed at the Faculty of Chemistry as a full professor. She was employed as a research assistant at the University of St Andrews in the group of C. A. Vincent and P.G. Bruce (1991-1994). She completed a two-month research internship in CEA Grenoble (2011). Anna Lisowska-Oleksiak obtained her MSc in chemistry at Nicolaus Copernicus University...
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Photocatalytic degradation of acetaldehyde in high temperature reaction chamber
Open Research DataThis dataset contains chromatograms recorded during the decomposition of acetaldehyde in a high-temperature reaction chamber under UV irradiation using TiO2 (titanium dioxide) as photocatalysts. It includes data on the influence of flow rate, TiO2 (titanium dioxide) filling the entire reactor, a thin layer of TiO2 (titanium dioxide) supported on KBr...
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Impedance spectroscopy as a diagnostic tool of degradation of Solid Oxide Fuel Cells = Spektroskopia impedancyjna jako narzędzie diagnostyczne degradacji tlenkowych ogniw paliwowych
PublicationTlenkowe ogniwa paliwowe SOFC sa obecnie bliskie komercjalizacji. Wiedza na temat mechanizmów degradacji ogniw paliwowych jest niezbędna do dalszej poprawy ich działania. Spektroskopia impedancyjna jest skutecznym narzędziem diagnostycznym. Pozwala ona na wskazanie który element ogniwa SOFC ulega pogorszeniu oraz pozwala poznać dokładniej naturę procesu degradacji. W tej pracy degradacja ogniwa SOFC została zbadana przy użyciu...
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Effect of alumina oxide nano-powder on the wear behaviour of CrN coating against cylinder liner using response surface methodology: processing and characterizations
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Impact of strontium non-stoichiometry of SrxTi0.3Fe0.7O3-δ on structural, electrical, and electrochemical properties for potential oxygen electrode of intermediate temperature solid oxide cells
PublicationThis work presents the results of a comprehensive study on the impact of the A-site non-stoichiometry of SrxTi0.3Fe0.7O3-δ (x = 0.90, 0.95, 1.00, 1.05) ceramics on their physicochemical properties. The materials were fabricated by the conventional solid-state reaction method and their structure was determined by X-ray diffractometry, X-ray photoelectron spectroscopy and electron microscopy. Their sintering and thermal expansion...
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Study on properties of oxide pigments after environmental expositions Badania w�a�ciwo�ci pigment�w tlenkowych po nara�eniach �rodowiskowych
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A Novel Electrochemical Sensor Based on Graphene Oxide Nanosheets and Ionic Liquid Binder for Differential Pulse Voltammetric Determination of Droxidopa in Pharmaceutical and Urine Samples
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The beneficial use of nitric oxide during cardiopulmonary bypass on postoperative outcomes in children and adult patients: a systematic review and meta-analysis of 2897 patients
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Compressive strength and density of cement pastes containing iron oxide (Fe3O4) nanoparticles (nanomagnetite)
Open Research Data*.ODS - open-data source spreadsheet - Dataset presenting:
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Expression of metalloproteinase 2 (MMP-2) and metalloproteinase 9 (MMP-9) in THP-1 macrophages cultured with three-dimensional titanium mini-plate systems used for surgical treatment of condylar fractures
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Endurance training upregulates the nitric oxide/soluble guanylyl cyclase/cyclic guanosine 3′,5′-monophosphate pathway in the striatum, midbrain and cerebellum of male rats
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Effect of silver/copper and copper oxide nanoparticle powder on growth of Gram-negative and Gram-positive bacteria and their toxicity against the normal human dermal fibroblasts
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Aiding (opponent) flow of hybrid copper–aluminum oxide nanofluid towards an exponentially extending (lessening) sheet with thermal radiation and heat source (sink) impact
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Pomiary naprężeń w warstwie wierzchniej stali duplex metodą dyfrakcji promieniowania rentgenowskiego g-sin2Ψ = Residual stress measurements in duplex steel surface layers by g-sin2Ψ x-ray diffraction method
PublicationPrzedstawiono wyniki pomiarów naprężeń w warstwie wierzchniej z wykorzystaniem metody dyfrakcji promieniowania rentgenowskiego g-sin2. Wyjaśniono zasady przeprowadzania pomiarów naprężeń na próbkach walcowych o małej średnicy. Badania prowadzono na próbkach okrągłych ze stali duplex, poddanych procesom nagniatania. Stwierdzono występowanie naprężeń ściskających w warstwach powierzchniowych wszystkich badanych próbek oraz istotne...
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X-ray diffraction spectra of nitrogen-doped carbon in hybrid materials containing praseodymium oxide
Open Research DataX-ray powder diffraction patterns of samples were carried out by Philips X’Pert diffractometer, which was radiated by graphite monochromatized Cu Kα (l equal 1.540598). The operating voltage was maintained at 40 kV, the current was maintained at 30 mA and analyzed in the range from 20° to 90°. The data presented confirmed the presence of the PrBSCF...
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Mechanical and thermal analysis of injection molded poly(methyl methacrylate) modified with 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (DOPO) fire retarder
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Endothelial integrity of radial artery grafts harvested by minimally invasive surgery — immunohistochemical studies of CD31 and endothelial nitric oxide synthase expressions: a randomized controlled trial☆
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Designing high-performance quasi-symmetrical solid oxide cells with a facile chemical modification strategy for Sr2Fe2−xWxO6−δ ferrites electrodes with in situ exsolution of nanoparticles
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Magnesium-Doped Sr2(Fe,Mo)O6−δ Double Perovskites with Excellent Redox Stability as Stable Electrode Materials for Symmetrical Solid Oxide Fuel Cells
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In vitro effect of three-dimensional (3D) titanium mini-plate systems used for surgical treatment of condylar fractures on interleukin 1 (IL-1) and interleukin 6 (IL-6) concentration in THP-1 macrophages
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Brunauer-Emmett-Teller (BET) surface analysis of titanium dioxide (TiO2) and silicon dioxide (SiO2) used for coating of expanded polystyrene spheres (EPS)
Open Research DataData refer to the results of BET surface area of TiO2 and SiO2 powders used for coating of expanded polystyrene spheres. The detailed measurement and equipment data was described in readme BET.txt file.TiO2 was treated firstly in autoclave at 150 C degrees for 1h, then was further heat treated in Ar at 400 C degrees. As a raw material TiO2 was used,...
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Mechanistic insights into the reactive radicals-assisted degradation of sulfamethoxazole via calcium peroxide activation by manganese-incorporated iron oxide–graphene nanocomposite: Formation of radicals and degradation pathway
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Mechanical properties of cement pastes containing pristine and silica-coated bismuth oxide Bi2O3+Gd2O3 structures
Open Research DataExcel (*.xlsx) and Csv (*.csv) files containing raw mechanical (compressive strength) data of cement pastes after 1, 2, 7 and 28 days of curing
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Alicja Konczakowska prof. dr hab. inż.
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Joanna Sypniewska mgr inż.
PeoplePhD student in the field of materials engineering at Gdansk University of Technology. Working on laser surface modification of titanium alloys for biomedical applications