About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Ceramic Materials and Processing
|
| Presentation Title |
Thermodynamic analysis of Cr2AlB2 synthesized by molten salt electrochemical method |
| Author(s) |
Ying Chen, Yang Liu, Pengzhen Li, Hongyan Yan |
| On-Site Speaker (Planned) |
Ying Chen |
| Abstract Scope |
As a member of the MAB phase, Cr2AlB2 has become a research hotspot in the field of structural ceramics, due to its unique properties of both metals and ceramics. This paper proposed an electrochemical synthesis approach of Cr2AlB2 in CaCl2-NaCl, the thermodynamic feasibility was analyzed. The results indicated that the raw materials formed Al4B2O9 and Al18B4O33 during sintering below 1200°C, no chemical reaction occurred between molten salt and raw materials. During electrolysis at 700–1000°C, controlling the experimental voltage range between -2.37 V and -3.11 V enabled the decomposition of target Cr, Al, and B elements while maintaining molten salt stability. And then the reduction sequence of Cr, B, Al formed t Cr2AlB2. A formulation design based on a molar ratio of Cr2O3/Al2O3/B2O3 of 1:0.5:1 was established. The thermodynamic results confirmed the theoretical feasibility of preparing Cr2AlB2 via the molten salt electrochemical method, providing a theoretical basis for the low-energy consumption and controllable synthesis of MAB-phase ceramics. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Ceramics, Electrometallurgy, Powder Materials |