Results 101 to 110 of about 14,888,123 (242)

Break the strength and ductility trade-off in novel NbC reinforced Fe40.5(CoCr)25Mn17.5Ni10Si5 high entropy alloy

open access: yesMaterials & Design
In this study, a novel NbC reinforced Fe40.5(CoCr)25Mn17.5Ni10Si5 high entropy alloy (HEA) was designed, which exhibits high strength and ductility at room temperature. This alloy was prepared through hot forging and annealing treatments, which exhibited
Naqash Ali   +8 more
doaj   +1 more source

Cemented tungsten carbides : production, properties, and testing /

open access: yes, 1998
Written by an international expert, this book covers the processing, microstructure, and properties of cemented tungsten carbides. It is divided into 18 chapters covering wide areas from crystal structure to phase equilibria, production of metal and ...
Upadhyaya, G. S.
core  

Thermochemical Core–Shell Architecturing of Si‐SWCNT Composites for High‐Performance Li‐Ion Battery Anodes

open access: yesAdvanced Science, EarlyView.
A thermochemically engineered core–shell Si architecture is developed through the controlled evolution of a SWCNT‐coated Mg2Si precursor. The process simultaneously generates a nanoporous Si shell for strain accommodation and Li+ transport, a chemically anchored SiC interfacial layer for robust mechanical and electrical coupling, and a Mg‐containing Si
Dong Gyun Hong   +11 more
wiley   +1 more source

Wettability and brazing of (MoNbTaVW)C high-entropy carbide by Ni and NiTa

open access: yesJournal of Materials Research and Technology
This study aimed to design and validate a suitable brazing filler for the joining of (MoNbTaVW)C High-Entropy Carbides (HECs). CALPHAD calculations were used to analyse phase equilibria of ternary C–Ni-M (M: Mo, Ta, W) systems at 1480 °C and to select a ...
Naser Hosseini   +13 more
doaj   +1 more source

Nickel Intercalation in Epitaxial Graphene on SiC(0001): A Novel Platform for Engineering Two‐Dimensional Heterostructures

open access: yesAdvanced Science, EarlyView.
Ni‐intercalated graphene on SiC is achieved through a scalable colloidal nanoparticle deposition route. 2D heterostructures show preserved graphene band structure, stable under ambient conditions, and robust interfacial magnetism. Intercalated 2D Ni represents a promising candidate for next‐generation spintronic devices and is a scalable pathway to ...
Ylea Vlamidis   +7 more
wiley   +1 more source

Modelling and synthesis of high-entropy refractory carbides [PDF]

open access: yes, 2017
Bulk samples of equiatomic, hexanery (5-metal), high-entropy refractory carbides were fabricated using a combination of high-energy ball milling (HEBM), spark plasma sintering (SPS), and hot pressing (HP) annealing.
Curtarolo, Stefano   +8 more
core   +1 more source

Design of Cobalt-Free High-Entropy Alloy Binder for WC-Base Cemented Carbides

open access: yesMetals
Cemented carbides are essential in applications requiring exceptional hardness and wear resistance. However, the reliance on cobalt as a binder raises concerns related to cost, supply security, and health.
Ivan Goncharov   +4 more
doaj   +1 more source

Is There a Unique Physical Entropy? Micro versus Macro [PDF]

open access: yes, 2012
Entropy in thermodynamics is an extensive quantity, whereas standard methods in statistical mechanics give rise to a non-extensive expression for the entropy. This discrepancy is often seen as a sign that basic formulas of statistical mechanics should be
Dieks, D.G.B.J.   +4 more
core   +1 more source

Ablation‐Immune Thermal Armor Via Microstructural‐Compatibility Design for Extreme Thermal Conditions

open access: yesAdvanced Science, EarlyView.
This study unveils a microstructural‐compatibility design strategy that integrates reactive melt infiltration with plasma spraying to fabricate carbon fiber‐reinforced ZrC‐SiC composites. The deliberate incorporation of SiC into the ZrC coating releases heat accumulation, suppresses detrimental lamellar ZrO2 formation, and reduces residual stress. This
Hongkang Ou   +6 more
wiley   +1 more source

Multifunctional Quantum Sensing Using Single Spins in a van der Waals Crystal

open access: yesAdvanced Science, EarlyView.
The work demonstrates a dual quantum sensing of temperature and magnetic field using spin‐complex quantum emitters in hexagonal boron nitride (hBN). Temperature sensing via zero‐phonon‐line shifts and magnetometry via optically detected magnetic resonances, enable simultaneous local thermometry and magnetic‐field measurements.
James Liddle‐Wesolowski   +7 more
wiley   +1 more source

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