Results 11 to 20 of about 14,888,123 (242)

High-entropy high-hardness metal carbides discovered by entropy descriptors [PDF]

open access: yesNature Communications, 2018
The overwhelming number of possible high-entropy materials represents a big challenge for predicting their existence. Here, the authors introduce an entropy-forming-ability descriptor capturing the synthesizability of these systems, and apply the model ...
Pranab Sarker   +8 more
doaj   +2 more sources

Will high-entropy carbides and borides be enabling materials for extreme environments?

open access: yesInternational Journal of Extreme Manufacturing, 2023
The concept of multi-principal component has created promising opportunities for the development of novel high-entropy ceramics for extreme environments encountered in advanced turbine engines, nuclear reactors, and hypersonic vehicles, as it expands the
Fei Wang, Frederic Monteverde, Bai Cui
doaj   +2 more sources

High Entropy Transition Metal Carbides [PDF]

open access: yes, 2022
This work is on the understanding and development of high entropy transition metal carbides. As ultra-high temperature structural ceramics, they are suitable for applications at high temperatures and in severe environments.
Wang, Y
core   +4 more sources

Low thermal conductivity of dense (TiZrHfVNbTa)Cx high-entropy carbides by tailoring carbon stoichiometry

open access: yesJournal of Advanced Ceramics, 2023
Transition metal carbides are promising candidates for thermal protection materials due to their high melting points and excellent mechanical properties. However, the relatively high thermal conductivity is still a major obstacle to its application in an
Lei CHEN   +6 more
doaj   +1 more source

High-Entropy 2D Carbide MXenes [PDF]

open access: yes, 2021
Two-dimensional (2D) transition metal carbides and nitrides, known as MXenes, are a fast-growing family of 2D materials. MXenes 2D flakes have n + 1 (n = 1 – 4) atomic layers of transition metals interleaved by carbon/nitrogen layers, but to-date remain ...
Weichen, Hong   +9 more
core   +2 more sources

High Entropy Materials: Challenges and Prospects

open access: yes, 2021
This book is a reprint of a special issue of Metals (ISSN 2075-4701), titled High Entropy Materials: Challenges and Prospects. It is a compilation of nine articles from different aspects of high-entropy materials.

core   +1 more source

Revealing the tempering embrittlement in a medium entropy alloy containing carbon atoms

open access: yesAIP Advances, 2022
In general, annealing treatment is frequently used to recover the ductility of high/medium entropy alloys after deformation. However, the present work demonstrates that the ductility of a CoCrNiVC medium entropy alloy could be substantially reduced after
S. Pan   +3 more
doaj   +1 more source

Production and Properties of High Entropy Carbide Based Hardmetals

open access: yesMetals, 2021
Dense, high-entropy carbide cobalt-bonded hardmetals with two different compositions, namely (Hf-Ta-Ti-Nb-V)C-19.2 vol% Co and (Ta-Ti-Nb-V-W)C-19.2 vol% Co, were successfully manufactured by gas pressure sintering (SinterHIP) at 1400 °C and 100 bar Ar ...
Johannes Pötschke   +4 more
doaj   +1 more source

Synthesis of high-entropy carbides (TiTaNb)xHfyZrzC with strong thermal-oxidative resistant properties by mechanical alloying and spark plasma sintering

open access: yesJournal of Materials Research and Technology, 2023
The paper presents the synthesis of single-phase high-entropy carbides (TiZrHfTaNb)C, (TiTaNb)0.45Hf0.275Zr0.275С and (TiTaNb)0.3Hf0.35Zr0.35С by mechanical alloying and spark plasma sintering.
Nikolay Razumov   +3 more
doaj   +1 more source

Improving the Wear Resistance of High Chromium Cast Iron through High Entropy Alloys Concepts and Microstructure Refinement

open access: yesMaterials Research, 2023
High Chromium Cast Iron (HCCI) has demonstrated its effectiveness as a potential material for applications in severe environments due to its remarkable wear resistance attributed to the volumetric fraction of carbides in the microstructure.
Willian Martins Pasini   +10 more
doaj   +1 more source

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