Fabrication of graded alumina-nickel composites by centrifugal slip casting

• Autorzy: Zygmuntowicz J. , Miazga A. , Konopka K. , Kaszuwara W.

Warianty tytułu

PL

Wytwarzanie kompozytów gradientowych Al2O3-Ni metodą odlewania odśrodkowego

• Języki publikacji: EN

Abstrakty

EN

Microstructural graded hollow cylinders were processed and characterized using the developed method called centrifugal slip casting (CSC). Water based slurries containing alumina and nickel powders were tested in this work. Two series were produced by the CSC technique at mould rotational speeds of 1000 rpm. The samples were prepared with a solid content of 50 vol.% with 10 and 20 vol.% nickel particles with respect to the total solid volume, respectively. The microstructure along the radial direction of a cross-sectional sample was presented. No new phases were observed after sintering. Microstructural observation and EDS analysis showed two zones with various concentrations of Ni particles in both series along the radial direction of the cylinders.

PL

Z użyciem metody odlewania odśrodkowego mas lejnych wytworzono próbki w kształcie walca, które następnie scharakteryzowano. W niniejszej pracy badano zawiesiny wodne zawierające tlenek glinu oraz nikiel. Dwie serie zostały wytworzone techniką odlewania odśrodkowego z mas lejnych przy prędkości obrotowej 1000 rpm. Przygotowano próbki o zawartości 50% objętościowo zawartości fazy stałej, w tym udział fazy metalicznej wynosił odpowiednio 10 oraz 20% objętościowo. Przeprowadzono obserwacje mikrostruktury wzdłuż kierunku promieniowego na przekroju poprzecznym próbek. Nie zaobserwowano nowych faz po spiekaniu. Obserwacja mikrostruktury i analizy EDS wykazały obecność dwóch stref o różnej koncentracji cząstek Ni w obydwu seriach wzdłuż kierunku promieniowego cylindra.

Słowa kluczowe

EN

composites Al2O3-Ni; centrifugal slip casting technique; microstructure

PL

kompozyty Al2O3-Ni; metoda odlewania odśrodkowego z mas lejnych; mikrostruktura

• Wydawca: Polskie Towarzystwo Materiałów Kompozytowych
• Czasopismo: Composites Theory and Practice
• Rocznik: 2016
• Tom: R. 16, nr 1
• Strony: 3--7
• Opis fizyczny: Bibliogr. 27 poz., rys., tab.

Twórcy

autor

Zygmuntowicz J.

• Warsaw University of Technology, Faculty of Materials Science and Engineering, ul. Wołoska 141, 02-507 Warsaw, Poland

autor

Miazga A.

• Warsaw University of Technology, Faculty of Materials Science and Engineering, ul. Wołoska 141, 02-507 Warsaw, Poland

autor

Konopka K.

• Warsaw University of Technology, Faculty of Materials Science and Engineering, ul. Wołoska 141, 02-507 Warsaw, Poland

autor

Kaszuwara W.

• Warsaw University of Technology, Faculty of Materials Science and Engineering, ul. Wołoska 141, 02-507 Warsaw, Poland

Bibliografia

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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.