A5041745819- Advanced ceramic materials synthesis
- Aluminum Alloys Composites Properties
- Advanced materials and composites
- Mechanical Behavior of Composites
- Advanced Surface Polishing Techniques
- Fiber-reinforced polymer composites
- Additive Manufacturing and 3D Printing Technologies
- Innovative concrete reinforcement materials
- High-Temperature Coating Behaviors
- Cellular and Composite Structures
- Material Properties and Applications
- Diamond and Carbon-based Materials Research
- High-Velocity Impact and Material Behavior
- Advanced machining processes and optimization
- Engineering and Materials Science Studies
- Rocket and propulsion systems research
- Recycling and utilization of industrial and municipal waste in materials production
- Pickering emulsions and particle stabilization
- Silicone and Siloxane Chemistry
- Tribology and Wear Analysis
- Innovations in Concrete and Construction Materials
- Catalytic Processes in Materials Science
- Bone Tissue Engineering Materials
- Silicon Carbide Semiconductor Technologies
- Intermetallics and Advanced Alloy Properties
University of Augsburg
2020-2025
Osaka University
2024
Deutsches Zentrum für Luft- und Raumfahrt e. V. (DLR)
2012-2020
Technical University of Darmstadt
2016
Nagoya Institute of Technology
2016
Stuttgart Observatory
2015
University of Tübingen
2015
Technologiezentrum Halbleitermaterialien
2015
University of Bremen
2003-2013
Supélec
2008
Porous silicon oxycarbide (SiOC) ceramics in particular bulk and cellular structures are produced via polymer pyrolysis. By using optimal pyrolysis parameters (i.e., heating rate, maximum temperature) the addition of either solid fillers or chemically active additives is efficient preventing collapse pore structure controlling formation through decomposition. Fast can lead to crack a loss specific surface area at temperatures above 600°C, whereas slow able preserve mesopores up 1200°C...
A new direct foaming method to produce macroporous cellular ceramics using surfactants as foam stabilizers is presented. The technology relies on the transition of a stabilized aqueous ceramic powder suspension containing homogeneously dispersed alkane or air–alkane phase into ceramics. stabilization and emulsion realized with particular emphasis interaction both mechanisms providing enduring stability system up high degrees. Anionic, cationic, nonionic were studied their effects. presence...
Environmental Barrier Coating systems (EBCs) were thermally cycled in a burner rig test facility. Yb2Si2O7 (YbDS) layer was deposited by air plasma spraying while two suspension sprayed Yb2SiO5 (YbMS) microstructures evaluated duplex (YbDS/YbMS) systems: columnar and segmentation cracked. EBCs underwent 2000 cycles at surface temperature of 1300 °C without signs delamination failure. A porous YbMS formed the base intercolumnar gaps cracks systems, presumably due to reactions with entrapped...
Abstract In the present paper, force‐fit connection of discrete ceramic components by means geometrically interlocking surfaces is studied. These possess a concavo‐convex topology permitting assembly structures in which each individual element kinematically locked its neighbors. Such have tuneable bending stiffness, allow for large deformations and are tolerant to missing or destroyed elements. properties topologically interlocked make them particularly attractive construction with brittle...
This research aims to enhance fibre-matrix adhesion in bio-based fibre-reinforced polyolefins without using promoters. The primary focus is establish a cross-linking mechanism between cellulose fibres and polyethylene by applying UV irradiation UV-transparent matrix UV-absorbing fibres. influence of treatment on the composite properties evaluated tensile, interfacial interlaminar shear strength tests. decreases critical fragment length single fibre fragmentation tests, indicating an improved...
A new type of zinc/air fuel cell comprising a Hg/Pb free Zn foam anode, PVA/KOH electrolyte membrane and MnO2/SiOC-based cathode was developed in this work. The electrochemical activity the zinc air electrode investigated 6 M KOH under half-cell conditions. pristine ZnO layer matrix favoured direct oxidation particles to oxide KOH. In laboratory cell, specific energy about 500 mWh g-1zinc measured at 5 mA discharging current with foam, PVA/KOH/H2O MnO2+Vulcan/carbon paper cathode....
We present an interesting processing route for obtaining alumina/mullite‐based ceramics with controlled porosity and airflow resistance leading to promising microstructures application as sound absorbers. The use of ceramic materials aims potential applications where high temperatures or corrosive atmospheres are predominant, e.g., in combustion chambers gas turbines. For the production porous we combined freeze gelation sacrificial templating processes produce near‐net‐shaped parts low...
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Abstract This study focuses on the design, additive manufacturing, and characterization of silicon carbide‐based components with complex geometries. These parts were produced using a novel hybrid technique, previously developed: powder bed fusion polyamide was used to 3D print two different templates architectures. Preceramic polymer infiltrations pyrolysis polycarbosilane furan resin performed obtain ceramic parts. The final densification achieved reactive or nonreactive according four...
Abstract Freeze casting is a fabrication method that allows producing near‐net‐shaped ceramics with variable porosity. Hydroxyapatite (HA) was modified by the addition of different amounts SiO 2 nanoparticles during freeze cast preparation. The introduced partial phase transformation HA to β ‐tricalcium phosphate and improved form stability due less shrinkage after sintering. impact surface roughness pure influence introduction on adhesion, proliferation, differentiation human...