Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Vladimir Shemet"'
Publikováno v:
Materials Research, Vol 7, Iss 1, Pp 203-208 (2004)
Fe-Cr alloys with variations in chromium content and additions of different elements were studied for potential application in intermediate temperature Solid Oxide Fuel Cell (SOFC). Recently, a new type of FeCrMn(Ti/La) based ferritic steels has been
Externí odkaz:
https://doaj.org/article/40536365a02d469abd804267dd037575
Publikováno v:
Metal and Casting of Ukraine. 29:60-66
Autor:
M. Hänsel, Erol Turan, Dirk Simon, Hans-Jürgen Christ, Ivan Kijatkin, Bronislava Gorr, Vladimir Shemet
Publikováno v:
ECS Transactions. 66:1-21
The isothermal oxidation behaviour of a Ni25Cr model alloy was studied employing the JuSie-methodology, i.e. using specimens of different thickness for each specific test gas composition at 1000°C in dry and wet N2-1%O2 as well as in Ar-7%H2O. The o
Publikováno v:
Materials at High Temperatures. 32:238-247
Regarding oxidation resistance, most high temperature alloys rely on the formation of a protective chromia surface scale during service. In the present study, the oxidation behaviour of a Ni–25%Cr model alloy was investigated during single- and two
Autor:
Daniel Grüner, Uwe Breuer, D. Simon, Bronislava Gorr, M. Hänsel, W. J. Quadakkers, Vladimir Shemet, H.-J. Christ, E. Turan
Publikováno v:
Materials at High Temperatures. 32:160-166
The isothermal oxidation behaviour of a Ni25Cr model alloy was studied using specimens of different thicknesses at 1000°C in dry and wet N2–1%O2. The oxidation mechanisms were evaluated using thermogravimetry and SEM/electron backscatter diffracti
Publikováno v:
Journal of Power Sources. 271:213-222
In the present study the long-term behaviour of two ferritic steels, Crofer 22 APU and Crofer 22H, in contact with a Ni-mesh during exposure in simulated anode gas, Ar–4%H 2 –2%H 2 O, at 700 and 800 °C for exposure times up to 3000 h was investi
Autor:
B. S. Lutz, Vladimir Shemet, Gerald H. Meier, Martin Schiek, Wojciech J. Nowak, Gordon R. Holcomb, T. Olszewski, Willem J. Quadakkers, Lorenz Singheiser, P. Huczkowski
Publikováno v:
Materials and Corrosion. 65:121-131
This report is a description of research performed by the Julich Research Centre. Their conclusions outline the effects of SO2 additions on oxide formations and the interaction of other gases in oxvyfuel environments.
Publikováno v:
Materials and Corrosion. 65:260-266
High purity chromium was reacted at 950 °C in flowing mixtures of N2-H2-H2O, N2-O2-H2O and Ar-O2. All gases produced an outer scale of Cr2O3. In addition, an underlying layer of Cr2N grew during reaction with N2-O2. As a result, the overall chromium
Publikováno v:
Materials at High Temperatures. 29:187-192
The oxidation behaviour of a NiCr-base model alloy with a 25% chromium content is investigated at 1000°C in different low p(O2) environments (Ar –H2–H2O) with the emphasis of how hydrogen andyor water vapour affects the oxidation behaviour of ch
Publikováno v:
Journal of Power Sources. 201:196-203
The reliable long-term operation of stacks with a low degradation rate is a prerequisite for the commercialization of solid oxide fuel cell (SOFC) technology. A detailed post-test analysis of stacks is of major importance in understanding degradation