GRK 2802: Investigations on the corrosion of 316L steel composite materials with MgO/TiO2 ceramic immersed in molten cryolite
References to related material | https://doi.org/10.1016/j.oceram.2023.100480 | |
Type of the data | Dataset | |
Total size of the dataset | 127280262 | |
Author | Yaroshevskyi, Serhii | |
Author | Weigelt, Christian | |
Author | Kerber, Florian | |
Author | Brachhold, Nora | |
Author | Zienert, Tilo | |
Author | Adamczyk, Alexander | |
Author | Vogt, Daniel | |
Author | Charitos, Alexandros | |
Author | Aneziris, Christos G. | |
Upload date | 2026-06-25T09:18:36Z | |
Publication date | 2026-06-25T09:18:36Z | |
Publication date | 2026-06-25 | |
Abstract of the dataset | Composites based on a steel with 40 vol% magnesia or titania were produced with the ceramics-derived extrusion and pressureless sintering. The materials were tested in a laboratory-scale fused-salt electrolysis cell with a synthetic cryolite in order to identify their potential use as electrode material in the Hall-Heroult process. The highly corrosive atmosphere and salt melt initiated certain corrosion effects in both material variants. The corrosion depth was determined with 1160 μm for magnesia and 463 μm for titania, respectively, after 8 h corrosion test. The initial corrosion includes the complete penetration of the specimens with cryolite and the dissolution of the ceramic component. A pre-oxidation of the specimens containing magnesia depressed the corrosion depth by 75% due to the formation of an aluminium oxide layer in the composite material during corrosion tests. The reduction in corrosion depth by pre-oxidation was less ronounced for the TiO2 composite materials (- 15%). | |
Public reference to this page | https://opara.zih.tu-dresden.de/handle/123456789/2762 | |
Publisher | Technische Universität Bergakademie Freiberg | |
Specification of the discipline(s) | 4::43 | |
Specification of the discipline(s) | 4::43::405::405-05 | |
Title of the dataset | GRK 2802: Investigations on the corrosion of 316L steel composite materials with MgO/TiO2 ceramic immersed in molten cryolite | |
Project abstract | This research aims to investigate the potential of upcycling spent MgO-C refractories as a ceramic feedstock for steel-ceramic composite materials intended for application as carbonless anodes in aluminium electrolysis. The work focuses on developing a reproducible processing route for recyclate-based MgO-steel composites and on establishing structure-processing relationships relevant to electrochemical operation in cryolitic environments. Particular attention is given to the controlled pre-oxidation treatments, and phase evolution on electrical conductivity of the composite material and chemical interaction with the electrolyte. Through systematic materials characterization and electrochemical exposure under laboratory conditions, the project seeks to identify the key degradation mechanisms governing composite anode behaviour and to delineate the design constraints and opportunities for integrating refractory recycling strategies into inert-anode development. | |
Funding Acknowledgement | The dataset was generated within the framework of the Research Training Group GRK 2802 (project ID: 461482547) funded by the German Research Foundation (DFG). | |
Public project website(s) | https://tu-freiberg.de/en/research/grk2802 | |
Project title | GRK2802_P7_Metalloceramic composites made from MgO or MgO-C recyclates in combination with steel and other additives as inert or low-carbon anodes in aluminium fused-salt electrolysis |