Showing 2,441 - 2,460 results of 2,515 for search '"microstructure"', query time: 0.08s Refine Results
  1. 2441

    Optimizing ultra high-performance concrete (UHPC) mix proportions using technique for order preference by similarity to ideal solution (TOPSIS) for enhanced performance: Precision... by Sathya Sai Regalla, N. Senthil Kumar

    Published 2025-07-01
    “…Since the early 1990s, researchers globally have explored various approaches to refine the selection of optimal UHPC compositions, addressing criteria such as strength, durability, workability, cost analysis, environmental impact, and microstructural properties. In this study, we utilize the Technique for Order Preference by Similarity to an Ideal Solution (TOPSIS) as a Multi-Criteria Decision-Making (MCDM) tool to navigate the complexities of UHPC mix selection. …”
    Get full text
    Article
  2. 2442

    Performance comparison of nitrile rubber 4105 with high-bound acrylonitrile content and similar products by "HU Hai-hua, WU Yu, XU Dian-hong, ZHAO Hong-guo, HUANG Xi-dai, HE Lian-cheng, GONG Zi-qing, ZHOU Lei"

    Published 2024-12-01
    “…Microstructures, molecular weights and their distributions of domestic nitrile rubber (NBR) products with high bound acrylonitrile content NBR 4105, NBR 3604 and NBR 4155 and imported pro-ducts N 220 S raw rubber, curing characteristics and processabilities of compounds, physical and mechanical properties, abrasion resistance, and thermal-oxidative aging resistance of vulcanizates were compared, and the application of four kinds of NBR and NBR 3604/NBR 4105 blend in oilfield drilling pump valve rubber were also explored. …”
    Get full text
    Article
  3. 2443

    Machine learning-based prediction of the mechanical properties of β titanium shape memory alloys by Naoki Nohira, Taichi Ichisawa, Masaki Tahara, Itsuo Kumazawa, Hideki Hosoda

    Published 2025-01-01
    “…The primary reasons for the discrepancy in this study include the small dataset size and the absence of microstructural features. This research demonstrates the potential of ML models in predicting the mechanical properties of β-type titanium SMAs, highlighting the importance of integrating domain-specific knowledge through feature engineering to overcome the challenge of small data sets, and to enhance accuracy and robustness.…”
    Get full text
    Article
  4. 2444

    Mechanism analysis of the enhanced corrosion resistance of the Mg–2Y alloy after Mn addition by Jinhang Dong, Yuxiu Zhang, Jun Liang, Zonghui He, Xiangbin Li, Fei Long

    Published 2025-03-01
    “…Specifically, the corrosion rate decreased from 4.91 mm y−1 in the Mg–2Y alloy to 0.81 mm y−1 in the Mg–2Y-0.5Mn alloy and to 0.48 mm y−1 in the Mg–2Y–1Mn alloy. The initial microstructures indicated that grain size, texture and dislocation barely influenced the corrosion behavior; the enhanced corrosion resistance caused by Mn addition could be well understood for two reasons. …”
    Get full text
    Article
  5. 2445

    Effect of Load Vector Orientation on Uniaxial Compressive Strength of 3D Photoresin by Evgenii Kozhevnikov, Mikhail Turbakov, Evgenii Riabokon, Zakhar Ivanov, Andrei Golosov, Arina Panteleeva, Yan Savitsky

    Published 2025-01-01
    “…Conversely, samples with layers oriented at 30° to the load vector displayed the highest Poisson’s ratio. Microstructural analysis revealed that the anisotropy in the mechanical properties of the 3D-printed samples is attributed to the layered, heterogeneous structure of the photoresin, which exhibits varying degrees of polymerization along the printing axes. …”
    Get full text
    Article
  6. 2446

    Optimising subsurface integrity and surface quality in mild steel turning: A multi-objective approach to tool wear and machining parameters by Muhammad Imran, Suo Shuangfu, Bai Yuzhu, Wang Yuming, Naveed Raheel

    Published 2025-03-01
    “…This study investigates the impact of machining parameters and tool dynamics on mild steel degradation of surface quality and subsurface, including heat effects, deformation, and microstructural changes that lead to microcracks and work hardening. …”
    Get full text
    Article
  7. 2447

    Effect of strain energy on corrosion behavior of ultrafine grained copper prepared by severe plastic deformation by Rifai M., Mujamilah M., Bagherpour E., Miyamoto H.

    Published 2022-01-01
    “…Effect of strain energy on corrosion behavior of ultrafine-grained (UFG) copper prepared by severe plastic deformation (SPD) was investigated in terms of microstructural evolution. The SPD processed material showed an ultrafine-grained (UFG) structure after grain refinement for several time processes, which will affect mechanical and corrosion behavior Homogeneity can be obtained efficiently through the pressing process commonly known as simple shear extrusion (SSE), which is one of the SPD techniques. …”
    Get full text
    Article
  8. 2448

    Emulsion electrospinning of lemongrass essential Oil-Loaded Ferula haussknechtii gum/ Polyethylene oxide as bioactive coating by Saeedeh Jafari, Abdollah Hematian Sourki, Safoora Pashangeh

    Published 2025-06-01
    “…The LGEO emulsion in the F. haussknechtii gum/polyethylene oxide solution was prepared via ultrasonic method, and its physicochemical properties, including pH, electrical conductivity, density, and apparent viscosity, were systematically evaluated. The microstructural morphology of the electrospun coating was analyzed using scanning electron microscopy (SEM). …”
    Get full text
    Article
  9. 2449

    Additively manufactured stochastic and gyroid scaffold design towards osseointegration and bone regeneration in a rabbit femur model by Susheem Kanwar, Oraib Al-Ketan, Gopinathan Janarthanan, Sanjairaj Vijayavenkataraman

    Published 2025-02-01
    “…Stochastic structures with locally controlled porosity better replicate the microstructural complexity of natural tissues. In this paper, the versatility of the stochastic scaffold design approach was tested by mimicking the porosity gradient of a bone in all three axes (labelled as uniaxial, biaxial and triaxial) and successfully printing them using multiple different 3D printing processes. …”
    Get full text
    Article
  10. 2450

    Electric field-assisted embedding of fiber optic sensors in structural materials for structural health monitoring by Xinchang Zhang, Joshua Daw, Charles Payne, Bibo Zhong, Austin Fleming, Zilong Hua, Jorgen Rufner

    Published 2025-01-01
    “…Samples fabricated under optimal conditions passed helium leak testing, confirming effective interfacial bonding. Microstructural characterization revealed excellent fiber-matrix adhesion and interdiffusion of elements across the interface. …”
    Get full text
    Article
  11. 2451

    Alkali metal salt modulated visible photocatalytic degradation of tetracycline hydrochloride by g-C3N4: Degradation pathway, mechanism and toxicity assessment by Yujie Jiao, Sujin Lu, Ru Li, Qikai Liu, Yongxia Ma, Fei Fu, Yaqi Mao, Yang Liu

    Published 2025-01-01
    “…In this study, CaCl2-modified melamine precursors were employed to synthesize CaCNx with varied microstructures through molten salt-assisted calcination, enabling high-efficiency visible-light-driven degradation of tetracycline in water. …”
    Get full text
    Article
  12. 2452

    Developing an activated biochar-mineral supplement for reducing methane formation in anaerobic fermentation by Sara Tahery, Mariano C. Parra, Paul Munroe, David R. G. Mitchell, Sarah J. Meale, Stephen Joseph

    Published 2025-02-01
    “…A high surface area, a high concentration of oxygen-containing functional groups, and a high concentration of free radicals, associated with O and Fe unpaired electrons, assisted the supplement with catalysing the oxidation of methane. Microstructural analysis of the supplement suggested the formation of organo-mineral phases, rich in C, O, Fe, Si, Al, K and Ca, indicating that the biochar reacted with mineral additives to preserve them. …”
    Get full text
    Article
  13. 2453

    Influence of boriding treatment on the mechanical properties of Monel 400 by Christian Pacheco, Jefferson Luiz Jeronimo, Anael Preman Krelling, Cesar Edil da Costa, Júlio Cesar Giubilei Milan

    Published 2025-01-01
    “…In this study, a powder composed of 90 wt% B4C and 10 wt% KBF4 was used to boride Monel 400 samples at three different temperatures and treatment times, resulting in varying layer thicknesses. Microstructural characterization was conducted using confocal microscopy, microhardness testing, Scanning Electron Microscopy (SEM), and Energy Dispersive Spectroscopy (EDS). …”
    Get full text
    Article
  14. 2454

    Hydration Behaviour and Characteristics of Binary Blended Metakaolin Cement Pastes by Abah Joseph Apeh

    Published 2022-04-01
    “…The PC replacement with MK induced changes in Microstructures of blended cement paste and chemical composition of hydration products. …”
    Get full text
    Article
  15. 2455
  16. 2456

    Mechanical Properties and Micromorphology of Calcium Oxide Expansion Agent on River Sand/Machine-Made Sand Concrete by Feng Wei, Fei Zhang, Li Gao, Rui Wang, Xiang Ren, Dan Zhang

    Published 2022-01-01
    “…Freeze-thaw cycles were observed under X-ray computed tomography, SEM, and EDS to explore the mechanical properties, porosity, and microstructures of the samples. The concrete air content increases, the porosity first decreases and then increases, and its compressive strength decreases as the mixing ratio of calcium oxide expansion agent increases, but the mixing ratio has little effect on the slump. …”
    Get full text
    Article
  17. 2457

    Fatigue crack growth in additive manufactured products by A. Riemer, H. A. Richard, J.-P. Brüggemann, J.-N. Wesendahl

    Published 2015-10-01
    “…In contrast the results for 316L show that its fracturemechanical behaviour is not affected by residual stresses, whereas the microstructural features lead to modification in the da/dN-K-data. …”
    Get full text
    Article
  18. 2458

    Thermo-mechanical response of aluminum alloy in the additive friction-stir deposition process by Chowdhury Sadid Alam, Vahid Karami, Shengmin Guo, M Shafiqur Rahman

    Published 2025-02-01
    “…Additive Friction Stir Deposition (AFSD) is an emerging solid-state additive manufacturing (AM) technique that creates fully dense metallic structures with equiaxed fine microstructures. The feedstock material is plasticized via frictional heating and deposited in the solid state. …”
    Get full text
    Article
  19. 2459

    Wear Properties of TiC-Reinforced Co50 Composite Coatings from Room Temperature to High Temperature by Nga Thi-Hong Pham, Van-Thuc Nguyen

    Published 2020-01-01
    “…With 30% TiC, the hardness obtains a higher hardness, but the surface appears to crack. The microstructures of the coatings present a well-mixed and well-distribution of the TiC particle on the Co matrix. …”
    Get full text
    Article
  20. 2460

    Evaluating the strength, durability and porosity characteristics of alluvial clay stabilized with marble dust as a sustainable binder by Mohamad Hanafi, Israf Javed, Abdullah Ekinci

    Published 2025-03-01
    “…The study tested three Portland cement contents (7, 10, and 13 %), two dry density (1.6 and 1.8 g/cm3), and two marble dust contents (0, 10 and 20 %) across three curing ages (7, 28, and 60 days). Microstructural analysis was performed using SEM. Results indicated a slight decrease in 7-day strength (up to 8.3 %) with 10 % marble dust replacement due to minimal pozzolanic activity, while 28-day strength loss was less significant. …”
    Get full text
    Article