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Wyszukujesz frazę "annealing temperature" wg kryterium: Temat

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    Wyświetlanie 1-6 z 6
    Tytuł:
    Significant Influence of Annealing Temperature and Thickness of Electrode on Energy Conversion Efficiency of Dye Sensitized Solar Cell: Effect of Catalyst
    Autorzy:
    Uddin, J.
    Islam, J. M. M.
    Khan, S. M. M.
    Hoque, E.
    Khan, M. A.
    Powiązania:
    https://bibliotekanauki.pl/articles/412298.pdf
    Data publikacji:
    2014
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Dye Sensitized Solar Cell
    sensitizer
    catalyst
    annealing temperature
    thickness
    Opis:
    Dye sensitized solar cell (DSSC) shows great promise as an alternative to conventional p-n junction solar cells due to their low fabrication cost and reasonably high efficiency. DSSC was assembled by using natural dye extracted from red amaranth (Amaranthus Gangeticus) as a sensitizer and different catalysts for counter electrode were applied for maximum energy conversion efficiency. Annealing temperature and thickness of electrode were also investigated and optimized. Catalyst, annealing temperature and thickness were optimized by the determination of cell performance considering photoelectrochemical output and measuring current and voltage; then calculating efficiency and other electrical parameters. The experimental results indicated that samples having 40 μm electrode thickness and prepared at 450 o C annealing temperature showed the best performance.
    Źródło:
    International Letters of Chemistry, Physics and Astronomy; 2014, 20, 1; 78-87
    2299-3843
    Pojawia się w:
    International Letters of Chemistry, Physics and Astronomy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Microstructural Studies of Ag/TiO2 Thin Film; Effect of Annealing Temperature
    Autorzy:
    Kamrosni, Abdul Razak
    Dewi Suryani, Che Halin
    Azliza, Azani
    Mohd Mustafa Al Bakri, Abdullah
    Mohd Arif Anuar, Mohd Salleh
    Norsuria, Mahmed
    Chobpattana, Varistha
    Kaczmarek, L.
    Jeż, Bartłomiej
    Nabiałek, Marcin
    Powiązania:
    https://bibliotekanauki.pl/articles/2048839.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Ag/TiO2
    annealing temperature
    microstructure
    optical properties
    thin film
    Opis:
    Microstructures are an important link between materials processing and performance, and microstructure control is essential for any materials processing route where the microstructure plays a major role in determining the properties. In this work, silverdoped titanium dioxide (Ag/TiO2) thin film was prepared by the sol-gel method through the hydrolysis of titanium tetra-isopropoxide and silver nitrate solution. The sol was spin coated on ITO glass substrate to get uniform film followed by annealing process for 2 hours. The obtained films were annealed at different annealing temperatures in the range of 300°C-600°C in order to observe the effect on crystalline state, microstructures and optical properties of Ag/TiO2 thin film. The thin films were characterized by X-Ray diffraction (XRD), scanning electron microscopy (SEM), and UV-Vis spectrophotometry. It is clearly seen, when the annealing temperature increases to 500°C, a peak at 2θ = 25.30° can be seen which refers to the structure of TiO2 tetragonal anatase. The structure of Ag/TiO2 thin film become denser, linked together, porous and uniformly distributed on the surface and displays the highest cut-off wavelength value which is 396 nm with the lowest band gap value, which is 3.10 eV.
    Źródło:
    Archives of Metallurgy and Materials; 2022, 67, 1; 241-245
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Features of Formation Stress State of Amorphized Detonation Coatings of the Zr-Al-B Systems
    Autorzy:
    Pashechko, Mykhaylo
    Kharchenko, Olena
    Shchepetov, Vitaliy
    Lenik, Klaudiusz
    Gladkiy, Yaroslav
    Powiązania:
    https://bibliotekanauki.pl/articles/102275.pdf
    Data publikacji:
    2019
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    amorphous coatings
    residual stresses
    annealing temperature
    wear resistance
    detonation spraying
    powłoki amorficzne
    naprężenia szczątkowe
    temperatura wyżarzania
    odporność na zużycie
    natrysk detonacyjny
    Opis:
    The results of experimental studies on the dependence of the thickness of amorphous-crystalline Zr-Al-B coatings on the value and level of distribution of type 1residual stresses were presented. It was demonstrated that residual compressive stresses arise in the surface layers of coatings, which in absolute value are not significant for its integrity and quality. It was established that the amorphous-crystalline composition, under the conditions of minimizing residual stresses and the optimal combination of the volume fraction of components, the structure and morphology of their components, has the best surface strength and wear resistance under friction compared to tungsten carbide and iron coatings
    Źródło:
    Advances in Science and Technology. Research Journal; 2019, 13, 2; 46-50
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The effect of repeated heating on corrosion resistance, hardness and microstructure of a Co-Cr-W prosthetic alloy
    Autorzy:
    Rzepkowska, M.
    Burnat, B.
    Pietnicki, K.
    Skrzypek, S.
    Klimek, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/368058.pdf
    Data publikacji:
    2020
    Wydawca:
    Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
    Tematy:
    mechanical properties
    corrosion
    prosthetic alloys
    structure
    high temperature annealing
    właściwości mechaniczne
    korozja
    stopy protetyczne
    struktura
    wygrzewanie wysokotemperaturowe
    Opis:
    Purpose: of this article is to present the results of tests carried out on the impact of repeated heating on the corrosion resistance of a Co-Cr-W prosthetic alloy. Design/methodology/approach: The study used samples prepared in a manner analogous to the production of a dental prosthesis. The effect of three and six-time heating of the material on its properties such as corrosion resistance, microstructure and material hardness were carried out. Findings: Repeated heating of the chromium-cobalt alloy has no significant effect on the polarization resistance and the potentiodynamic characteristics of the material. The introduction of heating in alloy treatment results in an increase in the hardness of the material, however, the number of annealing cycles does not affect this feature significantly. Samples subjected to different amounts of thermal treatments have different microstructure; it should be assumed that this will change the mechanical properties. Research limitations/implications: Microstructure tests carried out after electrochemical corrosion tests showed changes in the microstructure of samples subjected to subsequent annealing. The tests of material hardness and corrosion did not show any significant differences that may result from differences in structure, therefore further tests characterizing the physical properties of the material will be carried out. Originality/value: The article is a description of preliminary research on the impact of multiple annealing used in dental prosthetics on the properties of metallic material. Further work will be carried out to identify the properties that may be affected by the indicated changes in microstructure.
    Źródło:
    Journal of Achievements in Materials and Manufacturing Engineering; 2020, 99, 2; 64-71
    1734-8412
    Pojawia się w:
    Journal of Achievements in Materials and Manufacturing Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Effect of High Temperature Annealing on Fluorine Distribution Profile and Electro-Physical Properties of Thin Gate Oxide Fluorinated by Silicon Dioxide RIE in CF4 Plasma
    Autorzy:
    Kalisz, M.
    Głuszko, G.
    Beck, R. B.
    Powiązania:
    https://bibliotekanauki.pl/articles/308059.pdf
    Data publikacji:
    2010
    Wydawca:
    Instytut Łączności - Państwowy Instytut Badawczy
    Tematy:
    capacitance-voltage characteristics
    current-voltage characteristics
    fluorine plasma
    high temperature annealing process
    radio frequency reactive ion etching
    Opis:
    This study describes the effects of high temperature annealing performed on structures fluorinated during initial silicon dioxide reactive ion etching (RIE) process in CF4 plasma prior to the plasma enhanced chemical vapour deposition (PECVD) of the final oxide. The obtained results show that fluorine incorporated at the PECVD oxide/Si interface during RIE is very stable even at high temperatures. Application of fluorination and high temperature annealing during oxide layer fabrication significantly improved the properties of the interface (Ditmb decreased), as well as those of the bulk of the oxide layer (Qeff decreased). The integrity of the oxide (higher Vbd ) and its uniformity (Vbd distribution) are also improved.
    Źródło:
    Journal of Telecommunications and Information Technology; 2010, 1; 25-28
    1509-4553
    1899-8852
    Pojawia się w:
    Journal of Telecommunications and Information Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Soft-Sensing in Batch Annealing Based on Finite Differential Method and Support Vector Regression
    Autorzy:
    Kačur, Ján
    Durdán, Milan
    Laciak, Marek
    Flegner, Patrik
    Powiązania:
    https://bibliotekanauki.pl/articles/103270.pdf
    Data publikacji:
    2019
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    annealing
    steel coil
    temperature measurement
    soft-sensing
    finite differences method
    support vector regression
    wyżarzanie
    cewka stalowa
    pomiar temperatury
    wyczuwanie
    metoda różnic skończonych
    regresja wektora nośnego
    Opis:
    The temperature of annealed steel coils is a determining variable of the future steel sheets quality. This variable also determines the energy consumption in operation. Unfortunately, the monitoring of coil inner temperature is problematic due to the furnace environment with high temperature, coil structure, and annealing principle. Currently, there are no measuring principles that can measure the temperature inside the heat-treated product in a non-destructive manner. In this paper, the soft sensing of inner temperature based on the theory of non-stationary heat conduction and approach based on Support Vector Regression (SVR) was presented. The results showed that a black-box approach based on the SVR could replace an analytic approach, though with lesser performance. Several annealing experiments were performed to create a training data set and model performance improvement in the estimation of inner coil temperatures. The proposed software based on non-stationary heat conduction can calculate the behavior of inner coil temperature from the measured boundary temperatures that are measured by thermocouples. The soft-sensing principles presented in this paper were verified under laboratory conditions and on the data obtained from a real annealing plant.
    Źródło:
    Advances in Science and Technology. Research Journal; 2019, 13, 4; 70-86
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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