FOR3010: Influence of particle size and fabrication method on mechanical properties of Nb-Al2O3 refractory composites under compressive loads at high temperatures
References to related material | https://doi.org/10.1016/j.ceramint.2024.12.391 | |
Type of the data | Dataset | |
Type of the data | Image | |
Type of the data | Other | |
Total size of the dataset | 69077363 | |
Author | Günay, Gökhan | |
Author | Zienert, Tilo | |
Author | Endler, Dirk | |
Author | Aneziris, Christos G. | |
Author | Biermann, Horst | |
Author | Weidner, Anja | |
Upload date | 2026-09-23T12:31:33Z | |
Publication date | 2026-09-23T12:31:33Z | |
Publication date | 2026-09-23 | |
Abstract of the dataset | The present study explores the properties of both fine- and coarse-grained refractory composites made from niobium and alumina, designed for high performance applications at extreme temperatures, in abrasive environments, and under mechanical stresses. The effects of various production methods, including casting and extrusion, and different alumina particle sizes (fine or coarse) on the mechanical properties under compressive loads are investigated. Compression tests, as well as stress-relaxation and creep tests under compressive loads, are conducted at room temperature and high temperatures up to 1500 °C. The results are analysed concerning initial open porosities and particle sizes. The findings reveal that both particle size and manufacturing method significantly affect the mechanical properties of Nb-Al2O3 refractory composites. Additionally, the choice of production technique substantially influences the microstructure of the composites, leading to noticeable differences in mechanical performance. This research highlights the essential role of optimizing particle size and production methodologies to enhance the operational properties of Nb-Al2O3 refractory composites. | |
Public reference to this page | https://opara.zih.tu-dresden.de/handle/123456789/2936 | |
Publisher | Technische Universität Bergakademie Freiberg | |
Specification of the discipline(s) | 4::43 | |
Title of the dataset | FOR3010: Influence of particle size and fabrication method on mechanical properties of Nb-Al2O3 refractory composites under compressive loads at high temperatures | |
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 |