Results 61 to 70 of about 56,027 (314)

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

open access: yesAdvanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar   +7 more
wiley   +1 more source

High-Voltage Layered Manganese-Based Oxide Cathode with Excellent Rate Capability Enabled by K/F Co-doping [PDF]

open access: yes, 2023
P-type layered manganese-based materials are prone to undergo lattice oxygen oxidation accompanied by oxygen layer slipping and even unfavorable phase transitions at around 4.2 V, giving rise to rapid discharge capacity decline and inferior structural ...
Hongxia Chen (420196)   +9 more
core   +1 more source

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

open access: yesAdvanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele   +2 more
wiley   +1 more source

Optical and electronic properties of bismuth-implanted glasses [PDF]

open access: yes, 2014
Photoluminescence (PL) and excitation spectra of Bi melt doped oxide and chalcogenide glasses are very similar, indicating the same Bi center is present.
M. A. Hughes   +40 more
core   +1 more source

The prediction of hydroxyapatite crystallinity under various ion doping using machine learning

open access: yesResults in Chemistry
The ability to fine-tune and control the crystallinity of hydroxyapatite (HAp) is essential for its clinically applications. One of the effective methods to alter HAp crystallinity is by introducing ion doping.
Agrin Febrian Pradana   +9 more
doaj   +1 more source

A Combined Ion Implantation/Nanosecond Laser Irradiation Approach towards Si Nanostructures Doping

open access: yesJournal of Nanotechnology, 2012
The exploitation of Si nanostructures for electronic and optoelectronic devices depends on their electronic doping. We investigate a methodology for As doping of Si nanostructures taking advantages of ion beam implantation and nanosecond laser ...
F. Ruffino   +6 more
doaj   +1 more source

Uniform Amorphization of Crystalline Silicon Surfaces Enabled by Deep Ultraviolet Femtosecond Laser Pulses

open access: yesAdvanced Engineering Materials, EarlyView.
Deep‐UV (258 nm) femtosecond pulses enable uniform amorphous silicon writing on Si(100)/(111) with a six‐fold larger fluence amorphization window than NIR methods. Optimized fluence and overlap yield 20–45 nm uniform and continuous amorphous layers. Microscopy shows sharp interfaces, and real‐time reflectivity reveals nanosecond melt–resolidification ...
Wissal Benali   +5 more
wiley   +1 more source

Study on the influence of ion doping on the crystal structure and magnetic properties of YFeO3

open access: yesMaterials Research Express, 2020
A series of pure phase YFeO _3 sample powders doped with Eu ^3+ and Nd ^3+ were synthesized by sol-gel method. The influence of different ions doping on the crystal structure and magnetic properties of YFeO _3 were investigated.
Lingxian Ji   +3 more
doaj   +1 more source

Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions

open access: yesAdvanced Functional Materials, EarlyView.
This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian   +7 more
wiley   +1 more source

Effect of silver doping by ion implantation on graphene nanoplatelets properties [PDF]

open access: yes, 2018
The structural, electronic and optical properties of thin films based on chemically clean graphene nanoplatelets (GNP) doped by silver ion implantation with relatively low energies have been studied. The silver dopant percentage relatively carbon of 1.18
Stepanov, A. L.   +8 more
core  

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