Статья

A new MAX phases-based electroconductive coating for high-temperature oxidizing environment

T. A. PrikhnaV. Bakul Institute for Superhard Materials of the National Academy of Sciences of Ukraine, 2, Avtozavodskaya str., Kyiv 04074, UkraineО. P. OstashKarpenko Physico-Mechanical Institute of the National Academy of Sciences of Ukraine, 5, Naukova str., Lviv 79060, UkraineА.С. КупринNational Science Center Kharkov Institute of Physics and Technology, 1, Akademicheskaya str., Kharkov 61108, UkraineViktoriya PodhurskaKarpenko Physico-Mechanical Institute of the National Academy of Sciences of Ukraine, 5, Naukova str., Lviv 79060, UkraineТ. B. SerbenyukV. Bakul Institute for Superhard Materials of the National Academy of Sciences of Ukraine, 2, Avtozavodskaya str., Kyiv 04074, UkraineÉ. S. GevorkyanFaculty of Mechanics and Energetics, Ukraine State University of Railway Transport, 7 Feuerbach Sq., 61010 Kharkiv, UkraineMirosław RuckiFaculty of Mechanical Engineering, Kazimierz Pulaski University of Technology and Humanities in Radom, ul. Stasieckiego 54, 26-600 Radom, PolandW. ŻurowskiFaculty of Mechanical Engineering, Kazimierz Pulaski University of Technology and Humanities in Radom, ul. Stasieckiego 54, 26-600 Radom, PolandWojciech KucharczykFaculty of Mechanical Engineering, Kazimierz Pulaski University of Technology and Humanities in Radom, ul. Stasieckiego 54, 26-600 Radom, PolandV. B. SverdunV. Bakul Institute for Superhard Materials of the National Academy of Sciences of Ukraine, 2, Avtozavodskaya str., Kyiv 04074, UkraineM. V. KarpetsV. Bakul Institute for Superhard Materials of the National Academy of Sciences of Ukraine, 2, Avtozavodskaya str., Kyiv 04074, UkraineSemyon PonomaryovInstitute of Semiconductor Physics of the National Academy of Sciences of Ukraine (NASU), 41, Nauky ave., Kyiv 03028, UkraineB. D. VasylivKarpenko Physico-Mechanical Institute of the National Academy of Sciences of Ukraine, 5, Naukova str., Lviv 79060, UkraineViktor MoshchilV. Bakul Institute for Superhard Materials of the National Academy of Sciences of Ukraine, 2, Avtozavodskaya str., Kyiv 04074, UkraineМ.A. BortnitskayaNational Science Center Kharkov Institute of Physics and Technology, 1, Akademicheskaya str., Kharkov 61108, Ukraine

2021en

ABI

Аннотация

In the paper, results of variations of structure, oxidation resistance, and electrical conductivity of novel MAX-phase composite coating are presented. The characteristics of highly dense Ti-Al-C composite bulks and vacuum-arc deposited 6 μm thick coatings before and after heating at 600 °C in air for 1000 h were compared. High electrical conductivity (σ = 1.3·106 S/m) of the highly resistant toward oxidation (Δm/S = 0.07 mg/cm2) Ti-Al-C coating was preserved after long-term heating in air. It was found that the specimen surface layers of MAX-phases Ti3AlC2 and Ti2AlC based bulks and chromium-containing Crofer 22APU steel became semiconductors because of high-temperature long-term oxidation (at 600 °C). The vacuum-arc deposited Ti-Al-C composite coating revealed high oxidation resistance and electrical conductivity along with good mechanical characteristics, namely nanohardness H (10 mN) = 9.5 ± 1.5 GPa, and Young’s modulus E = 190 ± 10 GPa, which make it very promising for interconnects of solid oxide fuel cells (SOFCs).

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Идентификаторы

DOI: 10.1016/j.compstruct.2021.114649

Цитирования и источники

Цитирований: 2Использованных источников: 0

Показатели — AkademScholar