FOR3010: Characterization of high-temperature compressive behaviour of field-assisted sintered niobium-alumina refractory composites
References to related material | https://doi.org/10.1016/j.ceramint.2026.03.228 | |
Type of the data | Dataset | |
Type of the data | Image | |
Type of the data | Other | |
Total size of the dataset | 581486230 | |
Author | Günay, Gökhan | |
Author | Kallien, Gregory | |
Author | Kraft, Bastian | |
Author | Wagner, Susanne | |
Author | Schell, Karl Günter | |
Author | Heilmaier, Martin | |
Author | Biermann, Horst | |
Author | Weidner, Anja | |
Upload date | 2026-09-23T12:29:40Z | |
Publication date | 2026-09-23T12:29:40Z | |
Publication date | 2026-09-23 | |
Abstract of the dataset | Nb-Al₂O₃ refractory composites have attracted significant attention due to their excellent performance at elevated temperatures. The incorporation of both metallic (Nb) and ceramic (Al₂O₃) phases enhances interest in these materials, i.e., the combination of the high toughness and plasticity of niobium with the refractoriness, high hardness, thermal stability, and oxidation resistance of alumina. In this study, the high-temperature mechanical behaviour of Nb-Al₂O₃ composites produced via field-assisted sintering (FAST) was investigated under compressive loading. Composites containing alumina particles of different sizes were subjected to compressive tests up to 1350 °C. The results were evaluated with respect to Nb content, alumina particle size, applied stress, and test temperature. Initial and post-mortem microstructural analyses were carried out to characterise the deformation behaviour. It was observed that an increase in the metal content led to an enhancement of plasticity, while changes in alumina particle size influenced the deformation behaviour. | |
Public reference to this page | https://opara.zih.tu-dresden.de/handle/123456789/2937 | |
Publisher | Technische Universität Bergakademie Freiberg | |
Specification of the discipline(s) | 4::43 | |
Title of the dataset | FOR3010: Characterization of high-temperature compressive behaviour of field-assisted sintered niobium-alumina refractory composites | |
Project abstract | Ziel des TP 3 ist die Untersuchung der mechanischen Eigenschaften und des Schädigungsverhaltens grobkörniger refraktärer Verbundwerkstoffe bis zu hohen Temperaturen. Refraktäre Verbundwerkstoffe auf der Basis von grobkörnigem Al2O3 und dem refraktären Metall Nb werden im TP 2 durch Vibrationsgießen, Druckschlickergießen und kalt-isostatisches Pressen und anschließendes (druckloses) Sintern bzw. in TP 6 durch druck- und feldunterstütztes Sintern (Heißpressen und Field-Assisted Sintering) hergestellt. Die temperaturabhängigen mechanischen Eigenschaften (Druckfestigkeit, Kriech- und Relaxationsverhalten) der durch die unterschiedlichen Herstellungsrouten erzeugten Proben sollen in TP 3 bis zu hohen Temperaturen (maximal 1500°C) untersucht werden. Neben den mechanischen Eigenschaften stehen auch die Schädigungsmechanismen im Fokus der Untersuchungen. | |
Funding Acknowledgement | This research was financially supported by the German Research Foundation (DFG) within the Research Unit FOR 3010 under project number 416817512. | |
Public project website(s) | https://tu-freiberg.de/forschung/for3010 | |
Project title | FOR3010_Refrabund_TP3_Mechanische Hochtemperatureigenschaften und Schädigung refraktärer Verbundwerkstoffe |