A5065630851- Advanced ceramic materials synthesis
- Aluminum Alloys Composites Properties
- High-Temperature Coating Behaviors
- Laser Material Processing Techniques
- Metal and Thin Film Mechanics
- Polymer crystallization and properties
- Advanced materials and composites
- Graphene research and applications
- MXene and MAX Phase Materials
- Fiber-reinforced polymer composites
- Mesoporous Materials and Catalysis
- Catalysis and Hydrodesulfurization Studies
- Boron and Carbon Nanomaterials Research
- Recycling and utilization of industrial and municipal waste in materials production
- Catalysis and Oxidation Reactions
- Nuclear materials and radiation effects
- Thermal properties of materials
- Photopolymerization techniques and applications
- Superconducting Materials and Applications
- Aerogels and thermal insulation
- Magnesium Oxide Properties and Applications
- Fusion materials and technologies
- Intermetallics and Advanced Alloy Properties
- Additive Manufacturing and 3D Printing Technologies
- Zeolite Catalysis and Synthesis
Fraunhofer Institute for Ceramic Technologies and Systems
2012-2023
Fraunhofer Institute for Material and Beam Technology
1995-1996
This paper presents the experiments on synthesis of zirconium carbide (ZrC) using carbothermal reduction zirconia (ZrO2). The ratio ZrO2:C is used to adapt ZrC x O y with < 1 or + C. modification and total carbon amount allows use pressureless sintering method in combination temperatures ≤ 2000 °C. Fully densified products are obtained. relevant details formation investigated by X-ray diffraction (XRD). sintered characterized XRD, field emission scanning electron microscopy (FESEM), as well...
ABSTRACT The performance of carbon fibers depends on the quality precursor and conditions thermal treatment. In detail, for a PAN fiber viscosity spinning dope draw ratio during process needs to be considered. Through wet spinning, different types with defined parameters, including solid content, solvent content in bath, especially resulting cross section diameters, were fabricated analyzed tensile tests, density investigations, SEM, TGA‐MS, FTIR, XRD. results show that mechanical properties...
Abstract The granulation procedure of a catalyst powder is crucial step in designing high‐quality granulate for industrial applications. New processes have been developed that make it possible to form granulates with very narrow particle size distribution and high sphericity. innovative techniques offer great potential produce layered catalysts inert cores an active shell. novel spherical granules consist inexpensive core coated material. shell accurately designed geometry synthesized...
The oxidation and corrosion behavior at elevated temperatures of a SiCF/SiC(N) composite with two plasma-sprayed environmental barrier coating (EBC) systems were studied. After both processes, the formation silica-based thermally grown oxide (TGO) layer was observed. this TGO caused principal failure mechanisms EBC. Firstly, spallation EBC induced by stresses from volume expansion phase transformation to crystalline SiO2 Water vapor gap in top region found be second mechanism. burner rig...
Abstract In the present study it was possible to provide evidence that ZrC ceramics – regarding their electrical‐mechanical and thermal properties are an attractive substitute for tungsten molybdenum in field of refractory materials heating elements. For this purpose, behavior investigated a specific test stand under high vacuum conditions (10 −6 mbar) at temperatures above 2000 °C. addition, applicability as electrical element terms geometric design long‐term behavior. Examinations after...
Fiber coatings for BN/SiC-and BN/Si 3 N 4 -bilayer systems were developed the use in SiC/SiC composites. All produced with high process velocities of 500 m/h by a continuous roll-to-roll dip-coating process. The fiber surface was fully covered homogeneous coating and without bridging. Tensile tests bundles used to examine potential degradation properties due application coatings. coated showed reduction maximum tensile load 90.0 % 86.7 BN/SiC comparison bundle as-received state. A thermal...