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841
Mn‐Doped Tuned NiC/NiO Heterostructure for Efficient Electron Transfer in Hydrogen Evolution Reaction
Published 2025-06-01“…After 24 h catalytic hydrogen evolution test, its microstructure and potential show negligible change under 200 mA cm−2. …”
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842
Synthesis of Self⁃Supported Pt@Ni(OH)2 Catalysts and Their Electrocatalytic Hydrogen Evolution Performance for Water Splitting
Published 2025-06-01“…However,a systematic understanding of the structure–activity relationship between Ni(OH)₂ supports and Pt nanoparticles,as well as the impact of synthesis parameters on catalytic performance,remains lacking.This study focuses on the regulation of Ni(OH)₂ support phase evolution and Pt interfacial growth behavior by hydrothermal synthesis temperature.By analyzing the structure–performance relationship through the synthesis parameter–microstructure–catalytic performance correlation mechanism),the synergistic effects of temperature on the crystallinity of the support,Pt particle size distribution,and interfacial electronic structure were elucidated.Experimental results indicate that the Pt@Ni(OH)₂ catalyst synthesized at 100 ℃ exhibits outstanding HER activity in 1 mol/L KOH electrolyte,with overpotentials of only 5 mV at 10 mA/cm² and 62 mV at 100 mA/cm²,along with a Tafel slope of 70.0 mV/dec.After 50 hours of continuous operation,the electrode maintains nearly unchanged HER performance,demonstrating remarkable stability.…”
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843
Mechanistic controls on permeability evolution in thermally-upgraded low-maturity oil shales: Application of machine learning outputs
Published 2025-04-01“…Fractal dimensions indicate that the pore microstructure is anisotropic in the bedding-parallel and bedding-perpendicular directions and is upgraded by elevated temperature. …”
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844
Multiscale investigation of thermally activated coal gangue aggregate concrete interfacial transition zone evolution and failure mechanisms
Published 2025-08-01“…Uniaxial compression testing, SEM, XRD, NMR, and PFC3D meso‑scale simulations were employed to elucidate the effects of calcination temperature on 28‑day compressive strength, ITZ microstructure, pore‑size distribution, and crack initiation and propagation. …”
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845
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846
Evaluation of damage evolution in pure magnesium during surrogate high-energy electron irradiation for Brachytherapy seed application
Published 2025-07-01“…Defect migration and elastic interactions governed the microstructural evolution of electron irradiation damage in pure Mg, giving rise to events of loop coalescence, growth, and sometimes rotation of habit plane. …”
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847
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848
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849
Evolution of plastic deformation during multi-pass ECAP of an AA6060 aluminum alloy – An experimental flow line analysis
Published 2025-01-01“…Through comprehensive microstructural and mechanical characterization of the processed material, we discuss changes in macroscopic properties and their relationship to microstructural evolution and local strain accumulation during ECAP.…”
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850
Low-dose damage evolution in pure magnesium under electron irradiation: Effect of foil orientation and pre-existing dislocations
Published 2025-03-01“…Low-dose damage evolution in commercial purity (99.95 wt%) magnesium has been investigated, under 200 keV electron irradiation at room temperature, up to ∼0.03 displacements per atom. …”
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851
Fatigue assessment and damage evolution of additively manufactured Ti–6Al–4V lattice structures for medical applications
Published 2025-05-01“…This is complemented by microstructural and computed tomography methods for a holistic characterization of the damage mechanisms and defect structure to improve the comprehension of failure mechanisms in complex lattice structures.…”
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852
Experimental Investigation of Shear Behavior and Pore Structure Evolution in Heat-Treated Granite Subjected to Liquid Nitrogen and Water Cooling
Published 2025-04-01“…To this end, low field nuclear magnetic resonance (NMR) and scanning electron microscopy (SEM) were used to investigate the pore size distribution and microstructural evolution of granite. The experimental results indicate that both the shear strength and cohesion of granite initially increase and then decrease with the rise in thermal treatment temperature. …”
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853
Investigation into the evolution and failure mechanism of IMCs in Au wire bond interconnections under long-term wet heat conditions
Published 2025-09-01“…This research analyzed the microstructure evolution, defect formation, and mechanical performance degradation mechanism of the bonding wire and Au-/Al interface with long-term exposure to 85 °C/85 %RH thermal-humidity bias (THB). …”
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854
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855
Evolution and Evaluation of Duplex Grain of As-cast 30Cr2Ni4MoV Steel during Heat Treatment
Published 2020-02-01“…As the main microstructure flaw of heavy forging, duplex grain (the grain size is non-uniform) may result in producing a reject. …”
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856
Phase-Field Simulation and Dendrite Evolution Analysis of Solidification Process for Cu-W Alloy Contact Materials under Arc Ablation
Published 2024-09-01“…The results in this paper may provide a novel way to study the microstructure evolution and material property changes in Cu-W alloys under the high temperature of the arc for high-voltage circuit breaker contacts.…”
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857
High catalytic activity of iron and cobalt-iron oxide nanoparticles synthesized via a green method for the oxygen-evolution reaction
Published 2025-07-01“…The enhanced catalytic activity is ascribed to the amorphous microstructure, increased surface roughness, and synergistic electronic interactions between Fe and Co. …”
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858
Deformation mechanism of soft rock based on mineral crystal models
Published 2025-05-01“…This study primarily simulates microstructural evolution at the mineral crystal scale in heterogeneous soft rocks, providing deeper insights into the deformation and failure characteristics of soft rocks. …”
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859
Phase formation and texture evolution in 316L-CuCrZr multi-material structures fabricated by laser powder bed fusion
Published 2025-08-01“…Steel-copper multi-material structures produced via Additive Manufacturing pose challenges in laser co-processing and microstructural control. This work employs neutron imaging, Electron Backscatter Diffraction (EBSD), and Energy Dispersive Spectroscopy (EDS) mapping to characterize 316L-CuCrZr Functionally Graded Structures (FGS) fabricated via Laser Powder Bed Fusion. …”
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860
Improving electrocatalytic hydrogen evolution reaction with NiO2/Ni2O3 heterostructures synthesized by laser spraying
Published 2025-03-01“…The surface morphology, oxygen content and microstructures of the coatings were characterized. The electrochemical performance of the coatings was evaluated and the density functional theory (DFT) calculations were employed to explore the electrocatalytic mechanism. …”
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