About this Abstract |
| Meeting |
2027 TMS Annual Meeting & Exhibition
|
| Symposium
|
Ultrahigh-Temperature Processing and Manufacturing
|
| Presentation Title |
Eutectics Observed in Group (IV,V) Psuedobinary Transition Metal Diboride |
| Author(s) |
Stuart Ness, Anna Dorner, William Rosenberg, Simon Divilov, Philip Spencer, Gregory Hilmas, William Fahrenholtz, Stefano Curtarolo, Scott J. McCormack |
| On-Site Speaker (Planned) |
Scott J. McCormack |
| Abstract Scope |
This work presents experimental evidence of eutectic reactions in all investigated psuedobinary (Group IV – Group V) transition metal diboride Systems [(Ti,Nb)B2; (Ti,Ta)B2; (Zr,Nb)B2; (Zr,Ta)B2; (Hf,Nb)B2; (Hf,Ta)B2]. Eutectic microstructures were achieved through laser heating and cooling from the melt. In addition, the existence of a eutectic in the (Zr,Ta)B2 psuedobinary system is further verified with calorimetric measurements of excess enthalpies and a preliminary updated phase diagram is presented for the (Zr,Ta)B2 psuedobinary system. These results highlight that phase diagrams presented for these transition metal diborides need to be updated to reflect the observed eutectic reactions. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Temperature Materials, Solidification, |