The Influence of Biomass Cokes on the Microstructure and Thermal Shock Resistance of MgO-C Refractories
Type of the data | Dataset | |
Type of the data | Image | |
Type of the data | Text | |
Type of the data | Other | |
Total size of the dataset | 61780275 | |
Author | Gehre, Patrick | |
Author | Kapessov, Magzhan | |
Author | Guhl, Stefan | |
Author | Gräbner, Martin | |
Author | Aneziris, Christos G. | |
Upload date | 2026-09-21T15:16:52Z | |
Publication date | 2026-09-21T15:16:52Z | |
Publication date | 2026-09-21 | |
Abstract of the dataset | In this study, biomass cokes from sunflower seed hull (SFSH) and wood pellets (WP) were added to a MgO-C batch (3 mass % C) to replace 1.1 mass % of graphite. After hardening and carbonizing the samples, the influence of the biomass cokes on the microstructure and thermal shock resistance was investigated. The replacement of flaky graphite by carbonized WP and SFSH reduced the bulk density and increased the apparent porosity after pressing and carbonization, but the degree was only marginal. This was confirmed by SEM investigations, where the biomass-coke containing samples exhibited a microstructure with a higher amount of pores between the fine MgO grains. The thermal shock resistance of the porous wood pellet coke containing MgO-C is at the same level as the reference sample but not superior to it. | |
Public reference to this page | https://opara.zih.tu-dresden.de/handle/123456789/2849 | |
Public reference to this page | https://doi.org/10.25532/OPARA-1536 | |
Publisher | Technische Universität Bergakademie Freiberg | |
Licence | CC0 1.0 Universal | en |
URI of the licence text | http://creativecommons.org/publicdomain/zero/1.0/ | |
Specification of the discipline(s) | 4 | |
Title of the dataset | The Influence of Biomass Cokes on the Microstructure and Thermal Shock Resistance of MgO-C Refractories | |
Project abstract | Research into a new generation of carbon-bonded products based primarily on gelatine with possible tannin or lactose additives with Al2O3-C and MgO-C recyclates is developing a novel approach to 'Green Refractories'. The structural modification in terms of high thermal shock resistance is achieved a) by nanoscale and semiconducting additives or b) by recycled carbon fibres or recycled carbon fibre structures. The addition of nanoscale and semiconducting additives is intended to increase the residual carbon content, while the carbon fibre structures are intended to act as crack deflection centres. The thermal shock resistance and the chemical interactions with the steel are being researched in a special steel casting simulator. AFA (Automatic Feature Analysis) in the P-SEM is used to determine the significant inclusion populations in the steel. By simultaneously pouring the molten steel through a reference pouring nozzle and a nozzle based on the environmentally friendly refractory products, wetting and, in particular, anti-clogging phenomena can be investigated in terms of material and flow technology. | |
Funding Acknowledgement | This study was funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation), project number 461482547, within the Research Training Group “GRK 2802: Refractory Recycling: A contribution for raw material-, energy- and climateefficiency in high temperature processes”. | |
Public project website(s) | https://tu-freiberg.de/forschung/grk2802 | |
Project title | GRK2802_P1_The influence of biomass cokes on the microstructure and thermal shock resistance of MgO-C refractories |
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