High-entropy ceramic thin films; A case study on transition metal diborides
By P. Mayrhofer, A. Kirnbauer, Ph Ertelthaler, C. Koller. 2018
185 citations recorded by the source corpus.
Abstract High-entropy materials often outperform their lower-entropy relatives in various aspects, such as thermal stability and fracture toughness. While there are extensive research activities in the field of high-entropy alloys, comparably little is performed for high-entropy ceramics, and especially for high-entropy diborides. Here we show, that not only the hardness of ZrB2 layers can be improved from 43.2 ± 1.0 GPa to 45.8 ± 1.0 GPa to 47.2 ± 1.8 GPa through the formation of solid solution ternary diborides (Zr0.61Ti0.39B2) and high-entropy diborides (Zr0.23Ti0.20Hf0.19V0.14Ta0.24B2), respectively, but especially their thermal stability against structural rearrangements and decomposition towards the constituting binary diborides.
Subfields: Aerospace Engineering, Mechanical Engineering
View Paper: https://www.semanticscholar.org/paper/c9fdda4943445a24f092a8a849ef32da42dc8c8d
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Citations in the corpus
- The effect of submicron grain size on thermal stability and mechanical properties of high‐entropy carbide ceramics (2020, background): “The promising properties of high-entropy ceramics have been attributed to the compositional complexity, significant lattice distortion, and sluggish diffusion(6,13,14).”
- A high-entropy silicide: (Mo0.2Nb0.2Ta0.2Ti0.2W0.2)Si2 (2019, background): “lications in lithium-ion batteries [15, 16]. Second, high-entropy metal diborides have also been studied by many groups as a new class of promising structural ceramics (UHTCs) with increased hardness [17, 18, 19]; this line of work has further stimulated the subsequent development of high-entropy me”