Showing 421 - 440 results of 538 for search 'Microstructure and composition evaluation', query time: 0.11s Refine Results
  1. 421

    Mortars with enhanced chemical resistance: Effects of sulphuric acid exposure by Bruna S. Santos, Wesley B.S. Machini, Gina Matias, Nelson F.S.T. Moreira, Paulo M.M. Portugal, Isabel Torres, António Tadeu, João A.S. Almeida

    Published 2025-03-01
    “…The effect of sulphuric acid attack on the microstructure and chemical composition of mortars was further evaluated by mercury intrusion porosimetry (MIP), attenuated total reflection-Fourier transform infrared spectroscopy (ATR-FTIR), and scanning electron microscopy with energy dispersive X-ray (SEM-EDX).…”
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  2. 422

    The novel Vogel's approximation method integrated with a random forest algorithm in the vibration analysis of a two-directional functionally graded taper porous beam: Assessment by Ravikiran Chintalapudi, Geetha Narayanan Kannaiyan, Bridjesh Pappula, Seshibe Makgato

    Published 2024-12-01
    “…A functionally graded material is a class of composite materials characterized by gradual variations in composition and microstructure, which further induces the respective changes in the material properties. …”
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    Article
  3. 423

    Effect of the Noble Metals Addition on the Oxidation Behavior of Ni3Al by J. J. Ramos-Hernandez, J. Porcayo-Calderon, J. G. Gonzalez-Rodriguez, Jan Mayén, G. Lara-Rodriguez, V. M. Salinas-Bravo, L. Martinez-Gomez

    Published 2018-01-01
    “…This paper discusses the effect of the addition of noble metals on the microstructure, mechanism, and oxidation kinetics of the Ni3Al intermetallic alloy. …”
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  4. 424

    Revealing the effect of layer-varying deposition strategy on laser-directed energy deposition bionic gradient NiTi alloy by Zhongxiong Kang, Chaorui Jiang, Mengqi Liu, Zhihui Zhang, Jie Zhao

    Published 2025-12-01
    “…To evaluate the effect of the LVDS on Ni-loss, simplified mathematical models are constructed. …”
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  5. 425

    Porous hydroxyapatite – β-tricalcium phosphate ceramics produced from a rapid sol-gel process by Anna Bertocco, Marinélia Capela, Ana P. F. Caetano, Alessia Nito, Alessandra Quarta, Maria Paula Seabra, Robert C. Pullar

    Published 2025-05-01
    “…Acetate and nitrate precursor salts were compared, to produce bioceramics having different porosities induced via the addition of hydrogen peroxide (H2O2) pore-forming agent. 3–10 wt% H2O2 was added, and the resulting bioceramics calcined at 400 and 700 °C. Microstructure, composition, specific surface area and macro/mesoporosity were analysed, and bioactivity and cytotoxicity/biocompatibility evaluated by immersion in simulated body fluid (SBF) and MTT assays on MG63 osteoblast cell lines. …”
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  6. 426

    Synthesis and characterization of kaolin glass cullet ceramics modified with transition metal oxides for enhanced mechanical and optical properties by R. M. Khattab, M. A. Marzouk, H. E. H. Sadek

    Published 2025-06-01
    “…Phase identification and chemical composition analysis were carried out using X-ray diffraction (XRD) and dispersive X-ray fluorescence (XRF), while physical properties such as bulk density, apparent porosity, hardness, and microstructure were evaluated through scanning electron microscopy (SEM). …”
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  7. 427

    Study on Filter Cake Removal Fluid of EZFLOW Weak Gel Drilling Fluid by Haohan Hu, Youlin Hu, Xuejing Weng

    Published 2025-05-01
    “…The rheological mechanism was investigated through microstructural characterization, revealing that the microstructure comprises a reversible network structure with sol particles either encapsulated within the network or embedded at nodal points. …”
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  8. 428

    Biomass ash (BA) waste as an activator to produce carbon-negative cement by Zehao Lei, Sara Pavia

    Published 2024-12-01
    “…Using sodium carbonate (NC) and lime as supplementary activators enhanced the mechanical properties of the cements and slightly changed their composition and microstructure. NC is the most efficient activator, it increased dissolution, and produced a denser and stronger cement with higher Si and K concentration that includes gaylussite, N-A-S-H and C(K)-A-S-H. …”
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  9. 429

    Influence of Ni60-WC Bionic Unit on the Wear Performance of 20CrMnTi Steel Prepared via Laser Cladding by Bo Cui, You Lv, Zhaolong Sun, Yan Tong

    Published 2025-04-01
    “…The WC content was maintained within a mass percentage range of 15% to 60% in the composite powder system. The microstructure and properties of the bionic unit were characterized using scanning electron microscopy (SEM), X-ray diffraction (XRD), and a hardness tester, while its dry sliding wear resistance was evaluated using a block-on-ring tribometer. …”
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  10. 430

    Reactive Spark Plasma Sintering and Oxidation of ZrB<sub>2</sub>-SiC and ZrB<sub>2</sub>-HfB<sub>2</sub>-SiC Ceramic Materials by Elizaveta P. Simonenko, Eugeniy K. Papynov, Oleg O. Shichalin, Anton A. Belov, Ilya A. Nagornov, Tatiana L. Simonenko, Philipp Yu. Gorobtsov, Maria A. Teplonogova, Artem S. Mokrushin, Nikolay P. Simonenko, Nikolay T. Kuznetsov

    Published 2024-10-01
    “…The phase composition and microstructure of the obtained ceramic materials have been subjected to detailed analysis, their electrical conductivity has been evaluated using the four-contact method, and the electron work function has been determined using Kelvin probe force microscopy. …”
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  11. 431

    Eco-Friendly Improvement of Comprehensive Engineering Properties of Collapsible Loess Using Guar Gum Biopolymer by Yuesong Zheng, Tianhao Li, Daokun Qi, Xiaojuan Xi, Fengzu Peng, Shijun Ding, Zhibao Nie, Xin Hu, Gaowen Zhao, Bo Xiao, Yake Tang, Wenhui Wang

    Published 2024-11-01
    “…Collapsible loess is characterized by its unique soil-forming environment, mineral composition, and microstructure, resulting in poor engineering properties such as high water sensitivity, high collapsibility, high compressibility, and low strength. …”
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  12. 432

    Model of the Mechanical Behavior of Cementitious Matrices Reinforced with Nanomaterials by Victor D. Balopoulos, Nikolaos Archontas, Stavroula J. Pantazopoulou

    Published 2017-01-01
    “…CNTs and CNFs have been introduced as a nanoscale reinforcing material to cementitious composites, for stiffening and strengthening the microstructure. …”
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  13. 433

    Enhancing strength and sustainability of concrete with steel slag aggregate by Ibrahim Kamal Ibrahim, Mohammed Rady, Nouran M. Tawfik, Mahmoud Kassem, Sameh Youssef Mahfouz

    Published 2025-05-01
    “…The study assessed the mechanical and physical properties of both fresh and hardened concrete to evaluate the overall effects of these alterations. …”
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  14. 434

    Effect of PMMA sealing treatment on the corrosion behavior of plasma electrolytic oxidized titanium dental implants in fluoride-containing saliva solution by Nawres Bahaa Mohammed, Zina Ali Daily, Mohammed Hussein Alsharbaty, Shahabe Saquib Abullais, Suraj Arora, Holya A Lafta, Abduladheem Turki Jalil, Abbas F Almulla, Andrés Alexis Ramírez-Coronel, Surendar Aravindhan, Masoud Soroush Bathaei

    Published 2022-01-01
    “…The phase structure, chemical composition, and microstructure of coatings were investigated via x-ray diffraction, Fourier transform infrared spectroscopy, and scanning electron microscopy, respectively. …”
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  15. 435

    Effect of supercritical CO2 permeation on Poly(vinylidene fluoride) at high temperatures and pressure applied to offshore flexible pipes by A. Ingrassia, M.R. Tagliari, E. Pilla, F.P. Santos, W.C. Guaglianoni, M.F. Borges

    Published 2025-09-01
    “…The samples were characterized via macrography, hardness tests, FT-IR and DSC analysis to evaluate mechanical and thermal properties, and phase composition before and after the permeation tests. …”
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  16. 436

    Preparation and characterization of dressing-type emulsions formulated with hydrocolloids from the mango (Mangifera indica) peel by Ronald Marsiglia-Fuentes, José M. Franco, Luis A. García-Zapateiro

    Published 2024-12-01
    “…Particle size distribution, ζ-potential, proximal composition, color, microstructure, and rheological properties were evaluated. …”
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  17. 437

    Pore size characterization of Cretaceous ironstone by low-field nuclear magnetic resonance technique by A.A. Ige-Adeyeye, O.B. Olatinsu, V.C. Ozebo, L. Esteban

    Published 2026-02-01
    “…The aim was to evaluate the porosity and pore structure for heat flow consideration in blast furnace or rotary kiln. …”
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  18. 438

    Biogenic hydroxyapatite-zinc oxide nanocomposites: A synergistic strategy for antibacterial and osteoconductive coatings on orthopedic implants by Mohaddeseh Fatemi, Zohreh Bahrami, Marjan Bahraminasab, Farideh Nabizadeh Chianeh

    Published 2025-02-01
    “…The co-deposition was conducted on Ti6Al4V sheets for 5 min at a voltage of 90 V. The microstructure and phase composition of the synthesized powders were first analyzed. …”
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  19. 439

    Structural and magneto-elastic properties of samarium doped cobalt–nickel ferrite ceramics obtained by spark plasma sintering by Mario German Ibuado, Renee Joselin Sáenz-Hernández, Carlos Roberto Santillan-Rodriguez, Jose Andres Matutes-Aquino, María Cristina Grijalva-Castillo

    Published 2025-03-01
    “…The present work focused on fabricating and characterizing the magneto-structural properties of pure spinel ferrite nanoparticles and Co0.8Ni0.2Fe2-xSmxO4 (x = 0.01, 0.02) using the sol-gel method, and then producing pellets using the spark plasma sintering technique. The composition, structure, and microstructure of the nanoparticles and pellets were characterized by different techniques such as X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. …”
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  20. 440

    MICROMECHANICAL CHARACTERIZATION OF CEMENT PASTE MODIFIED BY NANOCLAYS by Vojtěch Zacharda, Jiří Němeček

    Published 2020-06-01
    “…A scanning electron microscope was used to describe their microstructure. Micromechanical properties of both cement composites were investigated by nanoindentation. …”
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