Results 11 to 20 of about 972,759 (203)
Comparing the Tribological Properties of the Coatings (Ti-Hf-Zr-V-Nb-Ta)N and (Ti-Hf-Zr-V-Nb-Ta)N + DLC [PDF]
Журнал нано- та електронної фізики, 2015 The paper compares the tribological characteristics of the coatings (Ti-Hf-Zr-V-Nb-Ta)N and (Ti-Hf-Zr-V-Nb-Ta)N + DLC obtained by means of vacuum-arc deposition method.
U.S. Nyemchenko +4 more
doaj +3 more sources
Materials & Design, 2022 The development of sputtered coatings with improved hardness-toughness property combination is widely sought after. Multi-element ceramic carbide (Hf-Nb-Ta-Zr)C coatings with excess carbon, synthesized by DC co-sputtering is presented in this study as a ...
Hariprasad Gopalan +9 more
doaj +7 more sources
CrystalsThis work investigates the influence of chemical composition, grain boundary (GB) type, and atomic distribution on the thermal conductivity of Hf–Nb–Ta–Zr refractory high-entropy alloys (RHEAs) via atomistic simulations.
Rita I. Babicheva +2 more
doaj +2 more sources
Nb- and Ta-doped (Hf,Zr,Ti)C multicomponent carbides with enhanced oxidation resistance at 2500 °C [PDF]
Journal of Advanced CeramicsEnhancing oxidation resistance of multicomponent carbides above 2000 ℃ is critical for their thermal protection applications. For this purpose, novel Nb- and Ta-doped (Hf,Zr,Ti)C multicomponent carbides were designed to improve their oxidation resistance
Shiyan Chen +7 more
doaj +2 more sources
Ab Initio Thermoelectric Transport Calculations of Alloyed Half-Heuslers. [PDF]
Adv Sci (Weinh)The effect of alloying on the electronic transport of half‐Heusler thermoelectric materials is explored using a fully ab initio approach. A novel method is developed that combines calculations of alloyed supercells with Boltzmann transport, considering the full energy and momentum dependent scattering processes from first principles extracted ...
Kumar A, Sahni B, Neophytou N.
europepmc +2 more sources
Comportamento mecânico da liga de alta entropia Hf-Nb-Ta-Zr por dinâmica molecular
Congreso Iberoamericano de Ingeniería Mecánica-CIBIM 2022, 2022 High-entropy alloys have already been shown to possess exceptional properties, surpassing those of conventional alloys. However, due to many possible combinations, only short compositions have been made, and even for these, there is a considerable gap in the literature about their mechanical properties.
Andrade, Jhonatan S. +5 more
openaire +2 more sources
Determinação das características estruturais e mecânicas da liga de alta entropia Hf-Nb-Ta-Zr
VETOR - Revista de Ciências Exatas e Engenharias, 2021 Neste artigo, os comportamentos estrutural e mecânico da liga equiatômica de alta entropia Hf-Nb-Ta-Zr foram estudados mediante simulações computacionais de dinâmica molecular. As simulações foram realizadas no código livre LAMMPS, em um sistema composto de 154.000 átomos que interagiram sob o potencial Embedded Atom Method (EAM).
Jhonatan Silva Andrade +2 more
openaire +5 more sources
Computational property predictions of Ta–Nb–Hf–Zr high-entropy alloys
Scientific Reports, 2021 Refractory high entropy alloys (R-HEAs) are becoming prominent in recent years because of their properties and uses as high strength and high hardness materials for ambient and high temperature, aerospace and nuclear radiation tolerance applications ...
Shashank Mishra +2 more
doaj +1 more source
High field strength element systematics and Lu-Hf & Sm-Nd garnet geochronology of orogenic eclogites [PDF]
, 2008 Concerning the Bulk Silicate Earth (BSE), the depleted mantle and the continental crust are thought to balance the budget of refractory and lithophile elements, resulting in complementary trace element patterns.
Schmidt, Alexander
core +1 more source
Fabrication and Characterization of Quinary High Entropy-Ultra-High Temperature Diborides
Ceramics, 2021 Due to their inherent chemical complexity and their refractory nature, the obtainment of highly dense and single-phase high entropy (HE) diborides represents a very hard target to achieve.
Simone Barbarossa +6 more
doaj +1 more source