| Autor: |
Christina M. Rost, Daniel L. Schmuckler, Clifton Bumgardner, Md Shafkat Bin Hoque, David R. Diercks, John T. Gaskins, Jon-Paul Maria, Geoffrey L. Brennecka, Xiadong Li, Patrick E. Hopkins |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
APL Materials, Vol 10, Iss 12, Pp 121108-121108-6 (2022) |
| Druh dokumentu: |
article |
| ISSN: |
2166-532X |
| DOI: |
10.1063/5.0122775 |
| Popis: |
As various property studies continue to emerge on high entropy and entropy-stabilized ceramics, we seek a further understanding of the property changes across the phase boundary between “high-entropy” and “entropy-stabilized” phases. The thermal and mechanical properties of bulk ceramic entropy stabilized oxide composition Mg0.2Co0.2Ni0.2Cu0.2Zn0.2O are investigated across this critical transition temperature via the transient plane-source method, temperature-dependent x-ray diffraction, and nano-indentation. The thermal conductivity remains constant within uncertainty across the multi-to-single phase transition at a value of ≈2.5 W/mK, while the linear coefficient of thermal expansion increases nearly 24% from 10.8 to 14.1 × 10−6 K−1. Mechanical softening is also observed across the transition. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
