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Showing 841 - 860 results of 1,371 for search '(microstructural OR microstructure) evolution', query time: 0.14s Refine Results
  1. 841

    Mn‐Doped Tuned NiC/NiO Heterostructure for Efficient Electron Transfer in Hydrogen Evolution Reaction by Tianyi Li, Ailing Fan, Yuanyuan Li, Yaqi Quo, Yang Zhu, Haijiao Xie

    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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    Article
  2. 842

    Synthesis of Self⁃Supported Pt@Ni(OH)2 Catalysts and Their Electrocatalytic Hydrogen Evolution Performance for Water Splitting by Kangsheng HUANG, Ning WANG, Mingrui GUO

    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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  3. 843

    Mechanistic controls on permeability evolution in thermally-upgraded low-maturity oil shales: Application of machine learning outputs by Bo He, Lingzhi Xie, Xin Liu, Jun Liu, Derek Elsworth

    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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    Article
  4. 844

    Multiscale investigation of thermally activated coal gangue aggregate concrete interfacial transition zone evolution and failure mechanisms by Jie Zhou, Shengpeng Hao, Yong Chen, Shurong Zhang, Wenyu Xu

    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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    Article
  5. 845
  6. 846

    Evaluation of damage evolution in pure magnesium during surrogate high-energy electron irradiation for Brachytherapy seed application by Hucheng Yu, Sichen Dong, Qi Chen, Xiaoou Yi, Hui Liu, Hao Fang, Wentuo Han, Pingping Liu, Somei Ohnuki, Farong Wan

    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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    Article
  7. 847
  8. 848
  9. 849

    Evolution of plastic deformation during multi-pass ECAP of an AA6060 aluminum alloy – An experimental flow line analysis by Nadja Berndt, Nadja A. Reiser, Martin F.-X. Wagner

    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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    Article
  10. 850

    Low-dose damage evolution in pure magnesium under electron irradiation: Effect of foil orientation and pre-existing dislocations by Hucheng Yu, Xiaoou Yi, Qi Chen, Hao Fang, Sichen Dong, Shulei Li, Wentuo Han, Pingping Liu, Somei Ohnuki, Farong Wan

    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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    Article
  11. 851

    Fatigue assessment and damage evolution of additively manufactured Ti–6Al–4V lattice structures for medical applications by Sebastian Stammkötter, Selim Mrzljak, Alexander Koch, Frank Walther

    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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    Article
  12. 852

    Experimental Investigation of Shear Behavior and Pore Structure Evolution in Heat-Treated Granite Subjected to Liquid Nitrogen and Water Cooling by Fan Zhang, Shengyuan Liu, Subiao Zhang, Yiming Zhang, Shaohui Quan, Man Li

    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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    Article
  13. 853

    Investigation into the evolution and failure mechanism of IMCs in Au wire bond interconnections under long-term wet heat conditions by Yaru Wu, Qinsong Bi, Shumeng Lu, Hongfu Yang, Shanju Zheng, Xiaohong Yuan, Jiaheng Zhang, Xiaojing Wang, Mengnie Li

    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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  14. 854
  15. 855

    Evolution and Evaluation of Duplex Grain of As-cast 30Cr2Ni4MoV Steel during Heat Treatment by Xiuzhi ZHANG, Zhilong LIU, Jiansheng LIU, Shue DANG

    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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    Article
  16. 856

    Phase-Field Simulation and Dendrite Evolution Analysis of Solidification Process for Cu-W Alloy Contact Materials under Arc Ablation by Hanwen Ren, Jian Mu, Siyang Zhao, Junke Li, Yateng Yang, Zhiyun Han, Zexi Xing, Qingmin Li

    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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    Article
  17. 857

    High catalytic activity of iron and cobalt-iron oxide nanoparticles synthesized via a green method for the oxygen-evolution reaction by Freshteh Gheybi, Majid Rashidi-Huyeh, Mohammad Reza Mohammadi

    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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    Article
  18. 858

    Deformation mechanism of soft rock based on mineral crystal models by Bo Wang, Qihua Zhao, Guangchuan Liang, Bing Lan, Lu Lu

    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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    Article
  19. 859

    Phase formation and texture evolution in 316L-CuCrZr multi-material structures fabricated by laser powder bed fusion by Antonios Baganis, Florencia Malamud, Jan Čapek, Fedor F. Klimashin, Efthymios Polatidis, Matteo Busi, Miroslav Šmíd, Michal Jambor, Johann Michler, Markus Strobl, Christian Leinenbach

    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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  20. 860

    Improving electrocatalytic hydrogen evolution reaction with NiO2/Ni2O3 heterostructures synthesized by laser spraying by Qinqin Chen, Haotian Qi, Chengjie Ge, Kai Zhang, Xinkun Suo

    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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    Article