Most high-entropy fluorite oxides (HEFOs), except for the two containing both Yb and Gd, can be sintered to high relative densities. These single-phase HEFOs exhibit lower electrical conductivities and comparable hardness (even with higher contents of softer components such as Y 2 O 3 and Yb...
et al. High-throughput screening of high-entropy fluorite-type oxides as potential candidates for photovoltaic applications. Adv. Energy Mater. 13, 2204337 (2023). Article CAS Google Scholar Schweidler, S. et al. Synthesis and characterization of high-entropy CrMoNbTaVW thin films using high...
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The crystal structure of A2B2O7 oxides is typically dependent on the rA/rB value. However, even when YYHEO had rA/rB = 1.4742, it exhibited a single cubic fluorite structure. In a pyrochlore A2B2O7 oxide, the A3+ and B4+ cations each occupy specific sites as an intermetallic compound...
Thermal barrier coating (TBC) materials are an important method to provide thermal protection and prolong service life for aero-engines and gas turbines. In recent years, various kinds of high-entropy (HE) rare earth oxides have emerged in the exploratio
New class of high-entropy defect fluorite oxides RE2(Ce0.(2)Zr0.(2)Hf0.(2)Sn0.(2)Ti0.(2))(2)O7 (RE = Y, Ho, Er, or Yb) as promising thermal barrier coatings High-entropy ceramics exhibit great application potential as thermal barrier coating (TBC) materials. Herein, a series...
Using defective fluorite and ordered pyrochlore oxides as two primary examples, we further consider the complexities of aliovalent cations and anion vacancies as well as ordered structures with two cation sublattices. Better thermally insulating yet stiff CCCs have been found in non-equimolar ...
The nanopowder and final transparent ceramic both exhibit mixing crystal structure of deficient fluorite and ordered pyrochlore. The final ceramic sample shows homogeneous elemental distribution, which is actually separated into 4 high-entropy solid solution phases with comparable elemental compositions. (C...
Single-crystalline mesoporous transition metal oxides contribute a new class of nanostructured materials and have behaved their wide utilizations in catalysis and electrocatalysis11,12,13,14. Long-range structural coherences of oxide single crystals remarkably accelerate the transports of electrons and react...
(FFT) filtered image of high-entropy fluorite oxides;eHRTEM graph of single edge dislocation;fGeometric Phase Analysis (GPA) mapping ofacalculated by Digital Micrograph, showing an overall strain field at nanoscale. The color scale represents change in strain intensity from −10% (compressive) to...