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Wyszukujesz frazę "microwave sintering" wg kryterium: Temat

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    Wyświetlanie 1-6 z 6
    Tytuł:
    Microstructure and electromagnetic properties of microwave sintered CoCuZn ferrites
    Autorzy:
    Patankar, K. K.
    Powiązania:
    https://bibliotekanauki.pl/articles/411554.pdf
    Data publikacji:
    2014
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    ferrite
    microwave sintering
    Microstructure
    electromagnetic
    inductors
    Opis:
    Co-Cu-Zn ferrite material has been extensively used in multilayer chip inductors because of their good electromagnetic properties at higher frequencies and low sintering temperatures. In this research work, a comparative study on Co-Cu-Zn ferrite prepared from two different routes is reported. The two different routes are conventional ceramic sintering method (CS) and is microwave sintered (MS) method. The former route is most commonly used while the latter one is now gaining popularity in sintering processes. The work highlights that the sintering temperature and time were significantly reduced from 4 h and 1250 °C for the CS process to 20 min and 900 °C for MS process. Moreover, microwave sintering also improves the physical and electromagnetic properties of ferrite.
    Źródło:
    International Letters of Chemistry, Physics and Astronomy; 2014, 1; 1-8
    2299-3843
    Pojawia się w:
    International Letters of Chemistry, Physics and Astronomy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Susceptor-Assisted Rapid Microwave Sintering of Al-Kaolin Composite in a Single-Mode Cavity
    Autorzy:
    Venkatesh, V.S.S.
    Kumar, Sunil
    Patnaik, Lokeswar
    Powiązania:
    https://bibliotekanauki.pl/articles/28099523.pdf
    Data publikacji:
    2023
    Wydawca:
    Polska Akademia Nauk. Czasopisma i Monografie PAN
    Tematy:
    kaolin reinforcement
    microwave sintering
    mechanical properties
    powder metallurgy
    Opis:
    The present research addresses the low-temperature sintering of 4% kaolin clay reinforced aluminium composite using susceptor-aided microwave sintering at 2.45 GHz frequency. Kaoline clay the naturally available mineral in the north-eastern regions of india. The study aims to convert this kaoline clay into the value added product with enhanced mechanical properties. The Al-x% Kaolin (x = 2, 4, 6, 8, 10) composite was fabricated through the powder metallurgy process by the application of 600 MPa compaction pressure. The composite corresponding to optimum ultimate tensile strength (U.T.S) was subjected to single-mode cavity microwave-assisted sintering by varying the sintering temperatures as 500°C, 550°C and 600°C. The effect of incorporating kaolin clay on the dielectric characteristics of composite powders, as well as the effect of sintering temperature on the microstructural changes and mechanical characteristics of Al-4%Kaolin composites were also examined. Results concluded that the addition of 4 wt% kaolin powder improves the dielectric characteristics of the composite powder. The maximum Hardness. Compression strength and U.T.S of 97 Hv, 202 MPa and 152 MPa respectively achieved for the Al-4% Kaolin composite sintered at 550°C. The higher fracture toughness of 9.56 Ma. m1/2 reveals the ductile fracture for the composite sintered at 550°C.
    Źródło:
    Archives of Metallurgy and Materials; 2023, 68, 2; 799--806
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effects of Microwave Sintering on Properties and Microstructure of Ferromanganese Alloy Powders
    Autorzy:
    Lei, L.
    Libo, Z.
    Linqing, D.
    Hongbo, Z.
    Guo, C.
    Jinhui, P.
    Qin, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/947519.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    microwave sintering
    ferromanganese powder
    densification
    liquid phase
    process conditions
    Opis:
    Microwave sintering process was employed to agglomerate ferromanganese alloy powders. The effects of sintering temperature, holding time and particle size composition on the properties and microstructure of sintering products were investigated. The results was shown that increasing sintering temperature or holding time appropriately is beneficial to increase the compressive strength and volume density. SEM and EDAX analysis shows that the liquid phase formed below the melting point in the sintering process, which leads to densification. XRD patterns indicate that the main reaction during microwave sintering is the decarbonization and carburization of iron carbide phase. The experiment demonstrate that the optimum microwave sintering process condition is 1150°C, 10 min and 50% content of the powders with the size of –75 μm.
    Źródło:
    Archives of Metallurgy and Materials; 2018, 63, 2; 547-553
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Characterization of Microwave Sintered Aluminium Composite Reinforced with Hydroxyapatite Extracted from Rihu Fish Scales
    Autorzy:
    Venkatesh, V.S.S.
    Prasad, Kalapala
    Deoghare, Ashish B.
    Powiązania:
    https://bibliotekanauki.pl/articles/27765073.pdf
    Data publikacji:
    2023
    Wydawca:
    Polska Akademia Nauk. Czasopisma i Monografie PAN
    Tematy:
    hydroxyapatite
    aluminium matrix
    microwave sintering
    mechanical properties
    Scanning Electron Microscopy
    Opis:
    In this study, Hydroxyapatite (HAp) is extracted from the Rihu fish scales which are generally dumped as garbage. The aluminium composite was fabricated through the powder metallurgy technique by reinforcing HAp (0, 5, 10 and 15 wt%) as a reinforcement. The fabricated samples were sintered through microwave sintering at 530℃ for 15 min under an argon gas environment. The fabricated composites were subjected to X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM) and Energy Dispersive Spectroscopy (EDS) analysis to confirm the constituting elements and to describe the reinforcement dispersion in the matrix. Uniform reinforcement dispersion was observed for the composite reinforces with 5% HAp, 10% HAp particles. The mechanical characterization results reveal that the Al-10% HAp composite exhibits a microhardness value of 123 ± 3 Hv and maximum ultimate tensile strength of 263 ± 10 MPa and 299 ± 9 MPa compression strength was obtained due to the presence of a strong bond among the aluminium and HAp particles.
    Źródło:
    Archives of Metallurgy and Materials; 2023, 68, 2; 617--624
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Advances in Powder Metallurgy Soft Magnetic Composite Materials
    Autorzy:
    Bureš, R.
    Strečková, M.
    Fáberová, M.
    Kollár, P.
    Füzer, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/353238.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    resin bonded SMC
    soft magnetic ferrites
    compaction
    microwave sintering
    magnetic and mechanical properties
    Opis:
    Powder metallurgy has grown with the expansion of various industry. Automotive industry had the most strong influence. Today, more than 90% of PM products are used in the transportation industry. Development of new materials such as magnetic materials is expected to meet the new trends of automotive industry, electric and hybrid vehicles. Soft magnetic composites (SMC) are PM materials based on ferromagnetic powder particles covered by electric insulation layer. Concept of SMC’s and PM technologies offer possibility to become faster, use higher frequencies, become smaller and denser, save more energy, achieving high permeability and lower core loss in high frequency region, which is required for soft magnetic materials. Investigation of correlations among compaction parameters, inner structure, magnetic and mechanical properties are presented.
    Źródło:
    Archives of Metallurgy and Materials; 2017, 62, 2B; 1149-1154
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Dopalanie spalin z procesu spiekania z zastosowaniem techniki mikrofalowej
    Afterburning of waste gas from sintering process using microwave technique
    Autorzy:
    Niesler, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/181843.pdf
    Data publikacji:
    2013
    Wydawca:
    Sieć Badawcza Łukasiewicz - Instytut Metalurgii Żelaza im. Stanisława Staszica
    Tematy:
    technika mikrofalowa
    spiekanie
    spaliny
    wielopierścieniowe węglowodory aromatyczne (WWA)
    microwave technique
    sintering
    waste gas
    polycyclic aromatic hydrocarbons (PAHs)
    Opis:
    W artykule przedstawiono możliwości dopalania spalin z procesu spiekania rud żelaza i odpadów przy zastosowaniu promieniowania mikrofalowego w warunkach IMŻ w Gliwicach. Opisano zasadę działania nowatorskiego urządzenie firmy ATON, zainstalowanego w układzie spiekania, które za pomocą mikrofal neutralizuje szkodliwe związki zawarte w gazach odlotowych. Badania wykazały, że mikrofalowy układ dopalania gazów działał z bardzo wysoką efektywnością, czego dowodem była śladowa zawartość WWA oraz CO w oczyszczanych spalinach.
    This article presents the possibilities of afterburning of waste gas from iron ore and waste sintering process using microwave radiation under the conditions of the Institute for Ferrous Metallurgy in Gliwice. The operating principle of innovative ATON equipment, installed in the sintering system to neutralise harmful compounds in waste gases, was described. The examinations revealed that the microwave system for afterburning of gases operated with very high efficiency proven by trace contents of PAHs and CO in treated waste gas.
    Źródło:
    Prace Instytutu Metalurgii Żelaza; 2013, T. 65, nr 1, 1; 2-6
    0137-9941
    Pojawia się w:
    Prace Instytutu Metalurgii Żelaza
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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