Structural evolution of directionally freeze-cast iron foams during oxidation/reduction cycles

SK Wilke, DC Dunand - Acta Materialia, 2019 - Elsevier
Cyclical oxidation/reduction behavior of iron-based powders and porous pellets is of great
interest for iron-air batteries, steam-iron, and chemical looping processes, but extended …

[HTML][HTML] Comparison of morphology and compressive deformation behavior of copper foams manufactured via freeze-casting and space-holder methods

K Hong, C Kádár, M Knapek, D Drozdenko… - journal of materials …, 2021 - Elsevier
Copper (Cu) foams with high porosity of about 63–78% were processed by the freeze-
casting (FC) and space-holder (SH) methods. The FC and SH techniques yielded lamellar …

Effects of pore morphology on the cyclical oxidation/reduction of iron foams created via camphene-based freeze casting

T Um, SK Wilke, H Choe, DC Dunand - Journal of Alloys and Compounds, 2020 - Elsevier
Solid-oxide iron-air batteries have potential for applications in large-scale energy storage
systems, but their storage materials, iron and iron oxides, have limited cycle life due to …

In operando tomography reveals degradation mechanisms in lamellar iron foams during redox cycling at 800 C

SK Wilke, DC Dunand - Journal of Power Sources, 2020 - Elsevier
The lifetime of iron-based active materials in high-temperature redox applications (eg, solid-
oxide iron-air batteries, chemical looping) is limited by sintering, accelerated by …

Fe–Ni foams self-heal during redox cycling via reversible formation/homogenization of a ductile Ni scaffold

SK Wilke, DC Dunand - Journal of Materials Chemistry A, 2020 - pubs.rsc.org
We investigate the degradation mechanisms during redox cycling of directionally freeze-
cast, lamellar Fe foams containing 0, 7, 19, or 25 at% Ni, relevant to applications in solid …

Structure–processing relationships of freeze-cast iron foams fabricated with various solidification rates and post-casting heat treatment

PJ Lloreda-Jurado, SK Wilke, K Scotti… - Journal of Materials …, 2020 - cambridge.org
Iron foams are potential materials for the production, purification, and recuperation of
hydrogen through redox systems. They are inexpensive, recyclable, and environmentally …

Evolution of directionally freeze-cast Fe2O3 and Fe2O3+ NiO green bodies during reduction and sintering to create lamellar Fe and Fe-20Ni foams

SK Wilke, JB Mack, C Kenel, DC Dunand - Journal of Alloys and …, 2021 - Elsevier
Directional freeze-casting (FC) of powder suspensions followed by freeze-drying and
sintering is a versatile and scalable processing route for creating metallic foams with highly …

Hierarchical Structural Changes During Redox Cycling of Fe-Based Lamellar Foams Containing YSZ, CeO2, or ZrO2

SK Wilke, RA Lundberg… - ACS applied materials & …, 2020 - ACS Publications
Several high-temperature energy conversion and storage technologies rely on redox cycling
of Fe-based materials, including storage materials in solid-oxide Fe–air batteries and …

[HTML][HTML] Effect of processing parameters on the properties of freeze-cast Ni wick with gradient porosity

PJ Lloreda-Jurado, E Chicardi, A Paúl, R Sepúlveda - Materials & Design, 2021 - Elsevier
Wicks are the main component of Loop Heat Pipe systems, whereby coolant liquid flow
through their porous structure. They are usually formed by a primary wick to produce liquid …

[HTML][HTML] Influences of the solid load on the microstructure and compressive behavior of Fe2O3 scaffolds manufactured by freeze-casting using stearic acid as …

PJ Lloreda-Jurado, V Perez-Puyana, A Romero… - Journal of the European …, 2022 - Elsevier
Porous materials manufactured by freeze-casting are demonstrating potential application as
oxygen carriers for the production and purification of hydrogen, or anode material for lithium …