Rost, Christina M.Schmuckler, Daniel L.Bumgardner, CliftonBin Hoque, Md ShafkatDiercks, David R.Gaskins, John T.Maria, Jon-PaulBrennecka, Geoffrey L.Li, XiadongHopkins, Patrick E.2024-01-222024-01-222022-12-162166-532Xhttps://hdl.handle.net/10919/117565As 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.6 page(s)application/pdfenCreative Commons Attribution 4.0 InternationalOn the thermal and mechanical properties of Mg<sub>0.2</sub>Co<sub>0.2</sub>Ni<sub>0.2</sub>Cu<sub>0.2</sub>Zn<sub>0.2</sub>O across the high-entropy to entropy-stabilized transitionArticle - RefereedAPL Materialshttps://doi.org/10.1063/5.01227751012Rost, Christina [0000-0002-6153-6066]2166-532X