Showing 2,461 - 2,480 results of 3,089 for search '(microstructures OR (microstructural OR microstructure)) (evolution OR evaluation )', query time: 0.20s Refine Results
  1. 2461

    Impact of Nanomaterials on the Mechanical Strength and Durability of Pavement Quality Concrete: A Comprehensive Review by Ashmita Mohanty, Dipti Ranjan Biswal, Sujit Kumar Pradhan, Malaya Mohanty

    Published 2025-03-01
    “…Nano SiO<sub>2</sub> and graphene oxide (GO) emerged as the most effective, with optimal dosages of 2% and 0.03%, respectively, leading to substantial improvements in compressive strength (up to 48.88%), flexural strength (up to 60.7%), and split tensile strength (up to 78.6%) through improved particle packing, reduced permeability, and refined microstructure. Nano TiO<sub>2</sub>, particularly at a 1% dosage, significantly enhanced multiple properties, including a 36.30% increase in compressive strength, over 100% improvement in abrasion resistance, and a 475% increase in fatigue performance. …”
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  2. 2462

    Development of biodegradable magnesium alloy stents with coating by Lorenza Petrini, Wei Wu, Dario Gastaldi, Lina Altomare, Silvia Farè, Francesco Migliavacca, Ali Gökhan Demir, Barbara Previtali, Maurizio Vedani

    Published 2014-07-01
    “…Our study required the following steps: i) selection of a Mg alloy suitable for stent production, having sufficient strength and elongation capability; ii) computational optimization of the stent geometry to minimize stress and strain after stent deployment, improve scaffolding ability and corrosion resistance; iii) development of a numerical model for studying stent degradation to support the selection of the best geometry; iv) optimization of the alloy microstructure and production of Mg alloy tubes for stent manufacturing; v) set up, in terms of laser cut and surface finishing, of the procedure to manufacture magnesium stents; vi) selection of a coating able to assure enough corrosion resistance and computational evaluation of the coating adhesion. …”
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  3. 2463

    Degradation mechanism of coal pillars in an underground coal gasification environment: Bearing capacity, pyrolysis behaviour and pore structure by Jian Li, Jinwen Bai, Guorui Feng, Erol Yilmaz, Yanna Han, Zhe Wang, Shanyong Wang, Guowei Wu

    Published 2025-06-01
    “…The pyrolysis reaction process and microstructure evolution were characterized via X-ray diffractometer (XRD), scanning electron microscope (SEM), thermogravimetric (TG), Fourier transform infrared spectroscopy (FTIR), and computed tomography (CT) tests. …”
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  4. 2464

    Porous highly conductive PEDOT film for high-performance supercapacitors by Wanying Zhang, Zhen Su, Bei Qi, Wentao Wang, Shisong Nie, Yingzhi Jin, Jiaxing Song, Lin Hu, Xinxing Yin, Weihua Ning, Xiaoming Yang, Hao Wang, Zaifang Li, Liang Huang

    Published 2025-06-01
    “…The synergistic action of elevated pressure and temperature was crucial in prompting EG to tailor the microstructure of the PEDOT:PSS films by removing non-conductive PSS chains and improving PEDOT crystallinity, and the formation of a porous network. …”
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  5. 2465
  6. 2466

    MRI of tumor T cell infiltration in response to checkpoint inhibitor therapy by Stephanie Dudzinski, Kathryn E Beckermann, Kirsten Young, Eliot McKinley, Jeffrey C Rathmell, Junzhong Xu, John C Gore, J Oliver McIntyre

    Published 2020-05-01
    “…The response was monitored longitudinally using Imaging Microstructural Parameters Using Limited Spectrally Edited Diffusion (IMPULSED), a diffusion MRI-based method which has been previously shown to non-invasively map changes in intracellular structure and cell sizes with the spatial resolution of MRI, in cell cultures and in animal models. …”
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  7. 2467

    A comprehensive investigation of the reaction behaviorial features of coke with different CRIs in the simulated cohesive zone of a blast furnace. by Qing Q Lv, Yong S Tian, Jun L Zhou, Hua W Ren, Guang H Wang

    Published 2021-01-01
    “…In this work, low-CRI coke (coke A) and high-CRI coke (coke B) were charged into a thermogravimetric analyzer to separately study their microstructural changes, gasification characteristics, and reaction mechanism under simulated cohesive zone conditions in a blast furnace. …”
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  8. 2468

    Laser Irradiation and Property Correlation in Double-Lasing Processes on Laser-Induced Graphene Electrodes by Tran Quoc Thang, Joohoon Kim

    Published 2025-02-01
    “…Importantly, we revealed the correlation between laser irradiation and the properties of LIG electrodes prepared through the lasing process. We evaluated the characteristics of LIG electrodes prepared by the single-lasing and double-lasing irradiation regarding their microstructures and electrochemical features, including the sheet resistance (R<sub>S</sub>), specific areal capacitance (C<sub>A</sub>), peak-to-peak separation (Δ<i>E</i><sub>P</sub>), and peak current. …”
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  9. 2469

    Synthesis and characterization of the Co(ii), Ni(ii), and Cu(ii) complexes with a 1,2,4-triazine derivative ligand by Althubeiti Khaled

    Published 2025-07-01
    “…The objectives included the synthesis of the ligand from 5-bromosalicylaldehyde and hippuric acid; the preparation of its metal complexes with the three transition metal ions; the verification of complexation stoichiometry using CHN and gravimetric analysis; the characterization of the ligand and complexes via spectroscopic techniques; the determination and comparison of their thermal properties through thermogravimetric (DTG) measurements; and the examination and comparison of their microstructures using powder X-ray diffraction (XRD) and transmission electron microscopy (TEM). …”
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  10. 2470

    Analysis of mechanical properties of fly ash and boiler slag integrated geopolymer composites by Jasim Ahmed Chowdhury, Md. Shahidul Islam, Md. Ashraful Islam, Md Abdullah Al Bari, Arup Kumar Debnath

    Published 2025-06-01
    “…SEM analysis revealed a geopolymer matrix with dense microstructures. These findings demonstrate that incorporating BS and FA into composite manufacturing provides a viable eco-friendly alternative to traditional materials, reducing reliance on geo-sand and cement while enhancing sustainability.…”
    Article
  11. 2471

    An overview of RE-Mg-based alloys for hydrogen storage: Structure, properties, progresses and perspectives by Dongsheng Zhou, Chunling Zheng, Yanghuan Zhang, Hanfeng Sun, Peng Sheng, Xin Zhang, Jun Li, Shihai Guo, Dongliang Zhao

    Published 2025-01-01
    “…The intrinsic mechanisms between microstructure morphology, phase structure, phase composition, and hydrogen storage properties of alloys with different RE-Mg-based systems were elucidated. …”
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  12. 2472

    Optimization of grouting reinforcement performance of superfine sulfoaluminate cement composite system by Pengfei WANG, Pengyun YAN, Mingxuan ZHANG

    Published 2025-06-01
    “…By combining macro performance test and micro structure characterization, the development of slurry fluidity, coagulation and hardening characteristics and mechanical strength were comprehensively evaluated, and the evolution of hydration products and performance regulation mechanisms were revealed through XRD, SEM and other analytical means, and the optimization effect of the materials was finally verified through the downhole grouting project.The experimental results show that: ① The type of water-reducing agent has a significant role in regulating the performance of the material: when the dosage of PCE is 0.6%, the 28 d compressive strength of the grouting material is the highest and shows a continuous growth trend, with the highest increase of 20.27%; while the strength inflection point of FDN occurs when the dosage of FDN is 0.3%, and the excessive dosage (>0.6%) leads to the decrease of strength. …”
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  13. 2473

    Thermoelectric characteristics of Co3(BO3)2 and NaF-substituted Bi2Sr2Co2Oy prepared via a sol-gel route by Nikoloz Margiani, Vakhtang Zhghamadze, Giorgi Mumladze, Iamze Kvartskhava, Giorgi Kakhniashvili, Natia Margiani, Georgi Badalyan

    Published 2025-01-01
    “…In this work, reference, Co _3 (BO _3 ) _2 and NaF-substituted, as well as Co _3 (BO _3 ) _2 /NaF co-substituted Bi _2 Sr _2 Co _2 O _y ceramics were prepared using the sol–gel method. We examined the microstructure and evaluated the power factor ( PF ) and figure of merit ( ZT ) through measurements of electrical resistivity ( ρ ), Seebeck coefficient ( S ), and thermal conductivity ( k ). …”
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  14. 2474

    Analysis of Electrical and Mechanical Properties of Self-Sensing Cement Composite with Carbon Microfiber by Stephanie Cucolo Marçula, João Batista Lamari Palma e Silva, Camila Tiemi Ozaki e Silva, Rosa Cristina Cecche Lintz, Luísa Andréia Gachet

    Published 2025-05-01
    “…Self-sensing cementitious composites have attracted significant attention in Structural Health Monitoring (SHM) due to their semiconductive and piezoresistive properties, achieved through incorporations conductive fillers such as graphite powder and carbon microfibers. This study evaluated cementitious composites with 0.4%, 0.6%, 0.8%, and 1% of carbon microfibers by mass, analyzing their mechanical, electrical, and microstructural properties. …”
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  15. 2475

    Characterization of temporary and permanent 3D-printed crown and bridge resins by Roope Salonen, Sufyan Garoushi, Pekka Vallittu, Lippo Lassila

    Published 2025-05-01
    “… Purpose: The aim of this study was to evaluate the mechanical, surface, and optical properties of two 3D-printed crown and bridge resins (CROWNTEC and Temp PRINT). …”
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  16. 2476

    Interfacial intermetallic compound layer in friction stir welded Mg/Al joints: Relationship between thickness and the welding temperature history by Xuesong Fu, Ke Chen, Qingsong Zhang, Nannan Chen, Min Wang, Xueming Hua

    Published 2025-06-01
    “…The IMC layer formed through solid-state diffusion and transformation instead of eutectic reaction according to the welding temperature history and interfacial microstructure, and its evolution process was clearly observed by plan view. …”
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  17. 2477

    Enhanced stability and durability of Cassie-Baxter state in aluminum-based superhydrophobic surfaces fabricated via nanosecond laser ablation by Zhengzheng Xu, Huilin Yin, Yue Jiang, Zhonghao Jiang, Yan Liu, Chun Cheng Yang, Guoyong Wang

    Published 2024-11-01
    “…The results show that surfaces with conical microstructures exhibit the most stable CB state. Additionally, these structures can spontaneously transition from the Wenzel to CB state during icing/melting cycles, maintaining their superhydrophobicity after 15 cycles. …”
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  18. 2478
  19. 2479

    BMP9 attenuates microgravity-related disuse osteoporosis by modulating TGFβ and BMP signaling by Haoyang Zhao, Mengfan Yang, Yujiao Liu, Xiaolin Tu, Gaohai Shao

    Published 2025-08-01
    “…HLU mice showed reduced bone density, microstructural integrity, and dysregulated signaling (increased p-Smad2/3, decreased p-Smad1/5/8). …”
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  20. 2480

    From deformation twinning to α'' martensitic transformation in deforming Ti–12Mo alloy with increasing grain size by Y. Wu, L.Y. Chen, Z. Liu, P. Chen, C.Y. Wang, B. Tang, H.C. Kou, J.S. Li

    Published 2024-11-01
    “…The corresponding mechanical properties and deformation products are systematically investigated by coupling mechanical evaluation methods and microstructure characterization techniques. …”
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