Mechanical properties of porous ITM alloy

Vasechko, Viacheslav; Pećanac, G.; Kuhn, Bernd; Malzbender, Jürgen

doi:10.1016/j.ijhydene.2015.10.075

Cited by 8 publications

(5 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The substrate (ITM) consists of an oxide dispersion-strengthened (OSD) ferritic steel containing 26% chromium, which is alloyed with small amounts of titanium, molybdenum, and Y 2 O 3 additions. The material was prepared by a powder-metallurgical process and exhibits porosities of about 40%, good corrosion resistance and a thermal expansion coefficient that matches SOFC materials well and was found to be independent of the porosity [ 36 , 37 , 38 ]. ITM was formed into sheets of 0.8 mm in thickness and different areas from 25 cm 2 to 100 cm 2 , which can be welded to the interconnector frame.…”

Section: Methodsmentioning

confidence: 99%

Operation of Thin-Film Electrolyte Metal-Supported Solid Oxide Fuel Cells in Lightweight and Stationary Stacks: Material and Microstructural Aspects

et al. 2016

View full text Add to dashboard Cite

Abstract:In this study we report on the development and operational data of a metal-supported solid oxide fuel cell with a thin film electrolyte under varying conditions. The metal-ceramic structure was developed for a mobile auxiliary power unit and offers power densities of 1 W/cm 2 at 800 • C, as well as robustness under mechanical, thermal and chemical stresses. A dense and thin yttria-doped zirconia layer was applied to a nanoporous nickel/zirconia anode using a scalable adapted gas-flow sputter process, which allowed the homogeneous coating of areas up to 100 cm 2 . The cell performance is presented for single cells and for stack operation, both in lightweight and stationary stack designs. The results from short-term operation indicate that this cell technology may be a very suitable alternative for mobile applications.

show abstract

Section: Methodsmentioning

confidence: 99%

Operation of Thin-Film Electrolyte Metal-Supported Solid Oxide Fuel Cells in Lightweight and Stationary Stacks: Material and Microstructural Aspects

et al. 2016

View full text Add to dashboard Cite

show abstract

“…MS-SOFCs readily survive complete oxidation and re-reduction of the anode, with little or no change in performance [19]. MS-SOFCs are also mechanically strong and flexible [22,23]. In summary, MS-SOFCs are mechanically rugged, enable extremely fast start-up times and high redox tolerance, and are composed primarily of very low cost stainless steel as the metal support.…”

Section: The Opportunity For High-temperature Metal-supported Electromentioning

confidence: 99%

Progress in metal-supported solid oxide electrolysis cells: A review

Tucker

2020

International Journal of Hydrogen Energy

View full text Add to dashboard Cite

There is increasing global interest in using solid oxide electrochemical cells to perform electrolysis. Metalsupported solid oxide electrolysis cells (MS-SOEC) are being developed with stainless steel and Ni-based supports. The use of porous metal to support the electrochemically-active layers is anticipated to improve mechanical strength, decrease cost, and increase tolerance to aggressive operating conditions, including rapid thermal excursions. This review summarizes and analyzes the previous decade of progress in MS-SOEC development, and identifies critical needs for future work.

show abstract

“…The model parameters and operating conditions are shown in Table V and Table VI respectively. The model parameters were taken from the values from published literature (14,15,18). The inlet fuel is considered as a gas mixture of CH 4 and H 2 O, with a steam to carbon ratio of two.…”

Section: Model Parameters and Operating Conditionsmentioning

confidence: 99%

Numerical Model of Direct Internal Reforming SOFC: A Comparison between Anode-Support and Metal-Support

Wang¹,

Ren²,

Shi³

et al. 2019

ECS Trans.

View full text Add to dashboard Cite

Direct internal reforming (DIR) operation provides many benefits for solid oxide fuel cells (SOFCs) by eliminating the need for an extra reformer. Anode-supported SOFCs (AS-SOFCs) are commonly used for DIR operations. However, the strong endothermic reforming reactions at the cell entrance may result in large thermal stresses and lead to premature failure. In this study, a two-dimensional model was developed to analyze the differences between the AS-SOFC and the new generation metal-supported SOFC (MS-SOFC) in DIR operations. The model considered the coupling effects of the chemical/electrochemical reactions, the mass/charge/heat transport processes and the thermal mechanical stress. The distributions of temperature, species composition, current density and thermal stress were determined and compared for both structures. The failure probability of the cell was estimated by stress distributions. The results showed that the MS-SOFC led to a gentler temperature distribution and a smaller failure probability with slight performance increase compared to the AS-SOFC.

show abstract

Mechanical properties of porous ITM alloy

Cited by 8 publications

References 21 publications

Operation of Thin-Film Electrolyte Metal-Supported Solid Oxide Fuel Cells in Lightweight and Stationary Stacks: Material and Microstructural Aspects

Operation of Thin-Film Electrolyte Metal-Supported Solid Oxide Fuel Cells in Lightweight and Stationary Stacks: Material and Microstructural Aspects

Progress in metal-supported solid oxide electrolysis cells: A review

Numerical Model of Direct Internal Reforming SOFC: A Comparison between Anode-Support and Metal-Support

Contact Info

Product

Resources

About