Showing 301 - 320 results of 538 for search 'Microstructure and composition evaluation', query time: 0.11s Refine Results
  1. 301

    Evaluation study on gas-phase passivation inhibiting the spontaneous combustion tendency of ferrous sulfide compounds by Yuanyuan Zhang, HaSung Kong, Ruixuan Hao, Qin Xu, Long Zhao

    Published 2025-07-01
    “…The results show that the entropy-weight method assigns dominant weights to the duration temperature in the room-temperature spontaneous combustion stage (ΔT1, 10.2%) and the activation energy in the high-temperature combustion stage (E3, 9.3%), indicating that the thermodynamic suppression effect, driven by the passivation mechanism, plays a more significant role than the changes in the microstructure. TOPSIS analysis reveals that the FeS sample passivated for 8 h with a 9% passivator concentration has the lowest spontaneous combustion tendency (composite score of 0.743), while the highest risk is associated with the sample passivated for 2 h with a 3% concentration (composite score of 0.341). …”
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  2. 302
  3. 303

    Effect of hybrid nano particle reinforcements on fractographic, mechanical and wear behavior of Al6061 alloy composites manufactured by ultrasonic assisted stir casting technique by Annapoorna Krishnappa, Shobha Ramesh, Bharath Vedashantha Murthy, Rajanna Siddagangappa, Srimadhu Ashokkumar, Madeva Nagaral, Virupaxi Auradi

    Published 2025-01-01
    “…Scanning Electron Microscopy was used to analyze the microstructure of the produced nano composite to ascertain the distribution of Al2O3 and ZrO2 nano particles and to analyze the fractured and wear characteristics. …”
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    Article
  4. 304

    Layer-level constitutive material model for representing non-linear stress-strain relationships in continuous carbon fiber-reinforced 3D-printed composites by Csenge Tóth, Blanka Ilinyi, László Kovács

    Published 2025-05-01
    “…3D-printed thermoplastic composites reinforced with continuous fibers exhibit nonlinear mechanical responses mostly due to the viscoelastic matrix and the presence of voids. …”
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  5. 305

    Microhardness and Elastic Properties Evaluation of WC-TiC Coatings Obtained by Arc Spraying Process by R. Haraga, D. Chicet, S. Toma, V. Carlescu, C. Bejinariu

    Published 2024-06-01
    “…The micro-hardness was evaluated onto the surface of the coating, previously prepared by grinding to reduce the as-coated roughness. …”
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  6. 306

    Synergistic Effects of Hollow Glass Microspheres and Sisal Fibers in Natural Gypsum-Based Composites: Achieving Lightweight, High-Strength, and Aesthetically Superior Construction... by Chang Chen, Yuan Gao, Shaowu Jiu, Yanxin Chen, Yan Liu

    Published 2025-03-01
    “…The multifunctional effects of these additives were comprehensively assessed via integrated mechanical characterization, spectrophotometric whiteness evaluation, and microstructural interrogation. The findings revealed that the incorporation of HGMs resulted in a significant decrease in the NGBC density while concurrently enhancing whiteness; they also exerted an adverse impact on both processability and mechanical properties. …”
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  7. 307

    Mechanical and thermal properties of structural lightweight bamboo fiber-reinforced insulating mortar by Yunyun Tong, Wei Zhang, Mengya Li, Tien Tung Ngo, Qiannan Wang, Wei Zeng, Benyue Li

    Published 2025-07-01
    “…Bamboo fiber-reinforced mortar (BFRM) was evaluated for its microstructural, mechanical, and thermal properties. …”
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  8. 308

    Fabrication and evaluation of 3D printed PLGA/nHA/GO scaffold for bone tissue engineering by Ling Tong, Guopeng Shi, Qinghua Liu, Zhiyong Qian, Jing Li, Kai Zhang, Yong Zhu, Yuan Fang, Lirong Sha, Lin Bai, Yumo Li, Xing Wang, Yuan Ma, Enhe Jirigala, Haiyan Wang, Xiaohe Li

    Published 2025-04-01
    “…Abstract The study aimed to fabricate and evaluate a bone tissue engineering scaffold made from a composite of polylactic-co-glycolic acid (PLGA), nano-hydroxyapatite (nHA), and graphene oxide (GO) using low-temperature 3D printing and freeze-drying techniques. …”
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    Evaluation of the Characteristics of Digital Light Processing 3D-Printed Magnesium Calcium Phosphate for Bone Regeneration by Peng Zhang, Meiling Zhang, Yoo-Na Jung, Seong-Won Choi, Yong-Seok Lee, Geelsu Hwang, Kwi-Dug Yun

    Published 2025-04-01
    “…We analyzed the physicochemical properties of these five groups, including phase compositions and microstructures, which were examined using X-ray diffraction and scanning electron microscopy, respectively. …”
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  13. 313

    Enhancing Mechanical and Tribological Enhancing Mechanical and Tribological Properties of 3D-Printed Dental Photopolymer Resin Using Hydroxyapatite Nanoparticles by Rochmadi, Kuncoro Diharjo, Ubaidillah, Joko Triyono, Eko Surojo, Abdurrahman Hanif, Bhre Wangsa Lenggana, Seung-Bok Choi

    Published 2025-03-01
    “….% were mixed with the resin to produce four distinct resin-HA (RHA) composites. The composites were evaluated for tensile strength, impact strength, and hardness, wear rate (K), and coefficient of friction (µ). …”
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  14. 314

    Characterization of Ultrathin Layers in Perovskite/TOPCon Tandem Cells With Photoelectron Spectroscopy Utilizing Advanced Data Evaluation Methods by Stefan Lange, Carl Eric Hartwig, Oussama Er-Raji, Patricia S. C. Schulze, Marko Turek, Juliane Borchert

    Published 2024-12-01
    “…However, the characterization of such thin film structures and the interfacial composition is challenging. In this contribution, we present characterization results of ultrathin passivation layers using angle-resolved X-ray photoelectron spectroscopy (XPS) and advanced data evaluation routines, including maximum entropy methods and analyses of inelastically-scattered electron background data. …”
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  15. 315
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    Synthesis of Magnetic Iron Oxide Heat-Activated Termite Mound Composite for Adsorption of Basic Blue 41 Dye from Textile Wastewater: Characterization and Box–Behnken Optimization by Amare Melaku, Esayas Alemayehu, Abebe Worku, Bernd Lennartz

    Published 2025-05-01
    “…Comprising 80% HTM by mass, the composite demonstrates economic viability. Using batch experiments and a Box–Behnken design, the adsorption performance of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi mathvariant="normal">m</mi><mi mathvariant="normal">a</mi><mi mathvariant="normal">g</mi><mi mathvariant="normal">n</mi><mi mathvariant="normal">e</mi><mi mathvariant="normal">t</mi><mi mathvariant="normal">i</mi><mi mathvariant="normal">c</mi><mo> </mo><mi mathvariant="normal">i</mi><mi mathvariant="normal">r</mi><mi mathvariant="normal">o</mi><mi mathvariant="normal">n</mi><mo> </mo><mi mathvariant="normal">o</mi><mi mathvariant="normal">x</mi><mi mathvariant="normal">i</mi><mi mathvariant="normal">d</mi><mi mathvariant="normal">e</mi></mrow></semantics></math></inline-formula>–HTM for BB41 dye removal from aqueous solutions was evaluated. …”
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  17. 317

    Phase evolution, mechanical properties, and corrosion behavior of FeCoNiCu-based high-entropy alloys by M. Shirali, Kh. Gheisari, M. Reihanian

    Published 2025-07-01
    “…Electrochemical corrosion studies in NaCl solution showed that FeCoNiCuNb exhibited the lowest corrosion current density, attributed to a semi-passive Nb2O5-rich layer confirmed by electrochemical impedance spectroscopy (EIS). The EIS evaluation revealed a total corrosion resistance of 45.666 kΩ cm2 for FeCoNiCuNb, significantly higher than FeCoNiCu (17.701 kΩ cm2), FeCoNiCuMo (1.582 kΩ cm2), FeCoNiCuCr (1.738 kΩ cm2), and FeCoNiCuSi (4.234 kΩ cm2), indicating less developed passive films and more active corrosion behavior in the other compositions. …”
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  18. 318

    Improving mechanical performance and reducing CO2 emissions of cement-based composites via one-step synthesis of highly dispersed flake g-C3N4 by Jiaqian Pang, Yangrui Wang, Lingjie Jiang, Haijie He, Bin Wang, Yufei Gao

    Published 2025-12-01
    “…To address this issue, this study employs a one-step method to synthesize highly dispersed flake g-C3N4 (F-CN) for improving the mechanical properties and reducing the CO2 emissions of cement-based composites, and investigates the underlying mechanisms. …”
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  19. 319

    Frictional wear properties of different nano La2O3 composite FeCoNiCrMo high-entropy alloy coatings under soil conditions by Zuyang Li, Wengang Chen, Dongyang Li, Jiawei Yang, Yao Zhang, Xiaodong Yang, Binggui Dai, Jihao Zhang, Zhaoling Qiu

    Published 2025-03-01
    “…In order to mitigate the problem of wear during the working process of earth-touching implements, in this study, nano La2O3-doped HEA (FeCoNiCrMo) coatings with different dopant contents were fabricated on the surface of 65Mn steel by laser cladding technology, Effects of the coatings on tribological properties of 65Mn steel were investigated in both dry ambient and dry soil environments. The microstructure, chemical composition, hardness, and tribological properties of the wear-resistant La2O3-doped composite coatings were evaluated. …”
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  20. 320

    Divergence in physical, chemical, and biological soil properties caused by different long-term bare fallow management and natural succession by Steffen Schlüter, Mengqi Wu, Maxime Phalempin, Lena Philipp, Evgenia Blagodatskaya, Thomas Reitz, Carsten Simon, Oliver Lechtenfeld, Hans-Jörg Vogel, Martin Schädler, Ines Merbach

    Published 2025-07-01
    “…Additionally, the bare fallow treatments were compared with natural succession to evaluate the effect of missing organic inputs. We monitored the annual dynamics of carbon and nitrogen contents in the topsoil (0–30 cm) and subsoil (30–60 cm). …”
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