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Wyszukujesz frazę "Ponomaryov, S." wg kryterium: Wszystkie pola


Wyświetlanie 1-1 z 1
Tytuł:
Presence of Oxygen in Ti-Al-C MAX Phases-Based Materials and their Stability in Oxidizing Environment at Elevated Temperatures
Autorzy:
Prikhna, T.
Ostash, O.
Sverdun, V.
Karpets, M.
Zimych, T.
Ivasyshin, A.
Cabioc'h, T.
Chartier, P.
Dub, S.
Javorska, L.
Podgurska, V.
Figel, P.
Cyboroń, J.
Moshchil, V.
Kovylaev, V.
Ponomaryov, S.
Romaka, V.
Serbenyuk, T.
Starostina, A.
Powiązania:
https://bibliotekanauki.pl/articles/1029693.pdf
Data publikacji:
2018-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
Ti-Al-C MAX phases
high- temperature resistance in air and hydrogen
hot pressing
bending strength
Opis:
The Ti₃AlC₂-, (Ti,Nb)₃AlC₂- and Ti₂AlC-based materials turned out to be more resistant than Crofer JDA steel in oxidizing atmosphere as 1000 h long tests at 600°C have shown. But the amounts of oxygen absorbed by the materials during testing were different. The Ti₂AlC-based material demonstrated the lowest oxygen uptake, (Ti,Nb)₃AlC₂-based absorbed a somewhat higher amount and the highest amount was absorbed by Ti₃AlC₂-based material. Scanning electron microscopy and the Auger study witnessed that amounts of oxygen in the MAX phases before the exposure in air were as well different: the approximate stoichiometries of the matrix phases of materials were Ti_{3.1-3.2}AlC_{2-2.2}, Ti_{1.9-4}Nb_{0.06-0.1}AlC_{1.6-2.2}O_{0.1-1.2} and Ti_{2.3-3.6}AlC_{1-1.9}O_{0.2-0.6}, respectively. The higher amount of oxygen present in the MAX phase structures may be the reason for higher resistance to oxidation during long-term heating in air at elevated temperature. The studied materials demonstrated high stabilities in hydrogen atmosphere as well. The bending strength of the Ti₃AlC₂- and (Ti,Nb)₃AlC₂-based materials after keeping at 600°C in air and hydrogen increased by 10-15%, but the highest absolute value of bending strength before and after being kept in air and hydrogen demonstrated the Ti₂AlC-based material (about 590 MPa).
Źródło:
Acta Physica Polonica A; 2018, 133, 4; 789-793
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-1 z 1

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