| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Ceramic Materials and Processing
|
| Presentation Title |
Refractory high entropy metal-borides (Hf, Ta, Nb, Zr, W)Bx – microstructure, crystal structure and phase evolution |
| Author(s) |
Sercan Cetinkaya, Edward G. Obbard, Kevin J. Laws, Patrick A. Burr, Jamie J. Kruzic, Vanessa K. Peterson |
| On-Site Speaker (Planned) |
Sercan Cetinkaya |
| Abstract Scope |
Borides are commonly used in the nuclear industry due to boron's unique atomic properties. For instance, WB2-x is a promising fusion reactor shielding material owing to tungsten’s non-toxicity and high atomic number, while B4C is used as a control rod material in commercial fission power plants. This study aims to investigate the thermodynamic phase stability and phase composition of both as-cast and annealed refractory high-entropy metal borides. The analysis employs energy dispersive spectroscopy (EDS), X-ray and neutron powder diffraction techniques. Specifically, two different high-entropy boride compounds, (HfTaZrNb)Bx and (HfTaZrNbW)Bx (x=2 and 3), were synthesized using an arc melter to study the tungsten’s effect on these compositions. Their microstructure, crystal structure, and phase evolution were examined after homogenisation at 1500°C|1d. The results provide insight into how the addition of tungsten influences the properties and stability of these high-entropy borides, which could have significant implications for their use in advanced nuclear applications. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Other, Characterization, Nuclear Materials |