| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Weidner, Anja
TU Bergakademie Freiberg
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2024Developing austenitic high-manganese high-carbon steels for biodegradable stent applications: Microstructural and mechanical studiescitations
- 2022High‐Temperature Ternary Oxide Phases in Tantalum/Niobium–Alumina Composite Materialscitations
- 2022Coarse‐Grained Refractory Composite Castables Based on Alumina and Niobiumcitations
- 2022High‐temperature ternary oxide phases in Ta/Nb‐Alumina composite materials
- 2022Influence of Plastic Strain Control on Martensite Evolution and Fatigue Life of Metastable Austenitic Stainless Steelcitations
- 2022Tailoring Nonmetallic Inclusions in 42CrMo4 as a Preparative Tool for Active and Reactive Steel Melt Filtrationcitations
- 2022Deformation Lenses in a Bonding Zone of High-Alloyed Steel Laminates Manufactured by Cold Roll Bondingcitations
- 2022In situ detection of cracks during laser powder bed fusion using acoustic emission monitoringcitations
- 2021Very High Cycle Fatigue Investigations on the Fatigue Strength of Additive Manufactured and Conventionally Wrought Inconel 718 at 873 Kcitations
- 2021Synthesis of niobium-alumina composite aggregates and their application in coarse-grained refractory ceramic-metal castablescitations
- 2021In situ characterization of the functional degradation of a [001¯] orientated Fe–Mn–Al–Ni single crystal under compression using acoustic emission measurementscitations
- 2020Microstructural changes during deformation of AISI 300 grade austenitic stainless steels: Impact of chemical heterogeneitycitations
- 2019Mechanical high-temperature properties and damage behavior of coarse-grained alumina refractory metal compositescitations
- 2019Laminated TRIP/TWIP Steel Composites Produced by Roll Bondingcitations
- 2016Investigation of Phase Transformations in High-Alloy Austenitic TRIP Steel Under High Pressure (up to 18 GPa) by In Situ Synchrotron X-ray Diffraction and Scanning Electron Microscopycitations
- 2015Damage evolution in pseudoelastic polycrystalline Co–Ni–Ga high-temperature shape memory alloyscitations
- 2009J. Man, P. Klapetek, O. Man, A. Weidner, K. Obrtlík and J. Polák: Extrusions and intrusions in fatigued metals. Part 2. AFM and EBSD study of the early growth of extrusions and intrusions in 316L steel fatigued at room temperaturecitations
Places of action
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article
Synthesis of niobium-alumina composite aggregates and their application in coarse-grained refractory ceramic-metal castables
Abstract
Niobium-alumina aggregate fractions with particle sizes up to 3150 µm were produced by crushing pre-synthesised fine-grained composites. Phase separation with niobium enrichment in the aggregate class 45–500 µm was revealed by XRD/Rietveld analysis. To reduce the amount of carbon-based impurities, no organic additives were used for the castable mixtures, which resulted in water demands of approximately 27 vol.% for the fine- and coarse-grained castables. As a consequence, open porosities of 18% and 30% were determined for the fine- and coarse-grained composites, respectively. Due to increased porosity, the modulus of rupture at room temperature decreased from 52 MPa for the fine-grained composite to 11 MPa for the coarse-grained one. However, even the compressive yield strength decreased from 49 MPa to 18 MPa at 1300 °C for the fine-grained to the coarse-grained composite, the latter showed still plasticity with a strain up to 5%. The electrical conductivity of fine-grained composite samples was in the range between 40 and 60 S/cm, which is fifteen magnitudes above the values of pure corundum.