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Advanced Materials, Processing and Testing Technology

Submission Deadline: 15 December 2021 (closed) View: 158

Guest Editors

Dr. Dajing Fang, Wuhan University, China

Summary

The development level of material science directly affects the industrial manufacturing technology, most countries attach great importance to the R & D and investment in material technology. This issue provides an opportunity for accessing to the most up-to-date and authoritative knowledge from both industrial and academic worlds, sharing best practice in the fields of advanced materials, materials processing and materials testing technology. Emphasis is placed on the interdisciplinary nature of materials science and issues at the forefront of the field, such as energy and environmental issues, as well as civil engineering applications.

Keywords

Functional material; Intelligent material; Material processing; Material testing

Published Papers

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  • Open Access

    ARTICLE

    Durability Testing of Composite Aerospace Materials Based on a New Polymer Carbon Fiber-Reinforced Epoxy Resin

    Jinlong Shang
    FDMP-Fluid Dynamics & Materials Processing, Vol.19, No.9, pp. 2315-2328, 2023, DOI:10.32604/fdmp.2023.026742
    （This article belongs to the Special Issue: Advanced Materials, Processing and Testing Technology)
    Abstract In this study, the durability of a new polymer carbon fiber-reinforced epoxy resin used to produce composite material in the aerospace field is investigated through analysis of the corrosion phenomena occurring at the microscopic scale, and the related infrared spectra and thermal properties. It is found that light and heat can contribute to the aging process. In particular, the longitudinal tensile strength displays a non-monotonic trend, i.e., it first increases and then decreases over time. By contrast, the longitudinal compressive and inter-laminar shear strengths do not show significant changes. It is also shown that the More >

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    569

  • Open Access

    ARTICLE

    A Research on the Air Permeability of High Polymer Materials Used to Produce Sports Clothing Fabrics

    Jike Gao, Fawei Li, Shangjun Liu
    FDMP-Fluid Dynamics & Materials Processing, Vol.19, No.5, pp. 1173-1187, 2023, DOI:10.32604/fdmp.2022.021140
    （This article belongs to the Special Issue: Advanced Materials, Processing and Testing Technology)
    Abstract Composite fabrics based on Polytetrafluoroethylene (PTFE) polymer displays several notable properties. They are waterproof, windproof, permeable to moisture and thermally insulating at the same time. In the present study, PTFE fibers are used as raw material to make fiber membranes. The film is formed by crisscrossing interconnected fiber filaments and the related air permeability: tensile creep characteristics and other properties are tested. The results show that the pore size, thickness, and porosity of the film itself can affect the moisture permeability of the film. The water pressure resistance of the selected fabric is 8.5 kPa, More >

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    1059

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    614

  • Open Access

    ARTICLE

    Analysis of the Performances of a New Type of Alumina Nanocomposite Structural Material Designed for the Thermal Insulation of High-Rise Buildings

    Yue Yu
    FDMP-Fluid Dynamics & Materials Processing, Vol.19, No.3, pp. 697-709, 2023, DOI:10.32604/fdmp.2022.021482
    （This article belongs to the Special Issue: Advanced Materials, Processing and Testing Technology)
    Abstract The sol-gel method is used to prepare a new nano-alumina aerogel structure and the thermal properties of this nanomaterial are investigated comprehensively using electron microscope scanning, thermal analysis, X-ray and infrared spectrometer analysis methods. It is found that the composite aerogel alumina material has a multi-level porous nano-network structure. When employed for the thermal insulation of high-rise buildings, the alumina nanocomposite aerogel material can lead to effective energy savings in winter. However, it has almost no energy-saving effect on buildings where energy is consumed for cooling in summer. More >

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    656

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    2

  • Open Access

    ARTICLE

    Analysis of the Performances and Optimization of Polyurethane Concrete with a Large Percentage of Fly Ash

    Tingting Huo, Jiaquan Xue, Zhi’an Fu
    FDMP-Fluid Dynamics & Materials Processing, Vol.19, No.2, pp. 437-450, 2023, DOI:10.32604/fdmp.2022.020696
    （This article belongs to the Special Issue: Advanced Materials, Processing and Testing Technology)
    Abstract The properties of polyurethane concrete containing a large amount of fly ash are investigated, and accordingly, a model is introduced to account for the influence of fly ash fineness, water ratio, and loss of ignition (LOI) on its mechanical performances. This research shows that, after optimization, the concrete has a compressive strength of 20.8 MPa, a flexural strength of 3.4 MPa, and a compressive modulus of elasticity of 19.2 GPa. The main factor influencing 28 and 90 d compressive strength is fly ash content, water-binder ratio, and early strength agent content. More >

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    1149

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    728

  • Open Access

    ARTICLE

    Reinforcement of Clay Soils through Fracture Grouting

    Shaozhen Cheng, Tielin Chen, Zizhou Xue, Kang Zhu, Jianke Li
    FDMP-Fluid Dynamics & Materials Processing, Vol.18, No.6, pp. 1649-1665, 2022, DOI:10.32604/fdmp.2022.018789
    （This article belongs to the Special Issue: Advanced Materials, Processing and Testing Technology)
    Abstract Fracture grouting is widely used for building foundation reinforcement, however the underpinning mechanisms are still not clear. Using numerical results about a single-hole fracture grouting process as a basis, a model composed of soil and grouting veins has been created to analyze the reinforcement mechanism. The influence weights of the grouting vein skeleton and compaction effect have been studied, thereby obtaining relevant information on the compressive modulus of the considered composite soil. The research results show that the compaction effect plays a leading role in the soil fracture grouting reinforcement. The grouting pressure, the hardened More >

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    1498

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    744

  • Open Access

    ARTICLE

    Optimization of the Thermoelectric Performances of CoSbS Semiconductors Using the High-Pressure Fabrication Method

    Fang Liu, Yonghui You, Min Wang
    FDMP-Fluid Dynamics & Materials Processing, Vol.18, No.6, pp. 1827-1839, 2022, DOI:10.32604/fdmp.2022.019132
    （This article belongs to the Special Issue: Advanced Materials, Processing and Testing Technology)
    Abstract CoSbS-based compounds are good thermoelectric materials with low thermal conductivity and good electrical properties, which can effectively be used to improve the efficiency of many thermoelectric conversion processes. In order to improve their properties even more, in this study a series of experiments have been conducted in the frame of the traditional solid-phase synthesis and high-pressure method. It is shown that if the mass fluctuation and stress fluctuation in the considered CoSbS system increase, the scattering probability of phonons is enhanced and the lattice thermal conductivity of the material is reduced. Adding a small amount… More >

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    1441

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    741

  • Open Access

    ARTICLE

    Influence of Anthracite-to-Ilmenite-Ratio on Element Distribution in Titanium Slag Smelting in Large DC Furnaces

    Shihong Huang, Ting Lei, Yan Cui, Zhifeng Nie
    FDMP-Fluid Dynamics & Materials Processing, Vol.18, No.4, pp. 883-896, 2022, DOI:10.32604/fdmp.2022.018537
    （This article belongs to the Special Issue: Advanced Materials, Processing and Testing Technology)
    Abstract The distribution of titanium, carbon and associated elements (calcium, magnesium, silicon and aluminum) in a smelting process is studied by means of a chemical equilibrium calculation method for multiphase and multicomponent systems, and verified through comparison with production results. In particular, using the coexistence theory for titanium slag structures, the influence of the AIR (anthracite to ilmenite ratio) on the distribution of such elements is analyzed. The results show that the AIR can be adjusted to achieve a selective reduction of oxides in the melt. More >

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    2034

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    1196

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    1

  • Open Access

    ARTICLE

    A Research on the Behavior of a Polyurethane Polymer Waterproof Material Used in Bridge Geotechnical Applications

    Yuzhuo Wang, Zhichao Xu
    FDMP-Fluid Dynamics & Materials Processing, Vol.18, No.4, pp. 897-906, 2022, DOI:10.32604/fdmp.2022.018972
    （This article belongs to the Special Issue: Advanced Materials, Processing and Testing Technology)
    Abstract Polyurethane is enjoying a widespread use as a polymer-based waterproof material in civil engineering In the present study we consider a temperature-sensitive waterproof and moisture-permeable polyurethane material (PTPE-PU) characterized by one or more phase transition temperatures (critical temperatures). Near the critical temperature, the waterproof and moisture permeability of polyurethane undergo abrupt changes. The related stability, thermal performance, water resistance, hydrostatic pressure, and moisture permeability are investigated here considering a PTPE-PU traditionally used in bridge geotechnical engineering. The results show that the moisture permeability of the coated bridge rock and soil undergo sudden variations near the More >

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    1990

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    1000

  • Open Access

    ARTICLE

    Analysis of Highway Asphalt Modified with Recycled Rubber and Waste Plastics

    Aimin Zhang, Mingzhi Lu
    FDMP-Fluid Dynamics & Materials Processing, Vol.18, No.4, pp. 907-918, 2022, DOI:10.32604/fdmp.2022.018995
    （This article belongs to the Special Issue: Advanced Materials, Processing and Testing Technology)
    Abstract In this study, it is shown how recycled rubber and waste plastics can modify the softening point and penetration of asphalt traditionally used for highways. It is shown that the modified asphalt can meet the performance index requirements when the components are present with a certain proportion or relative ratio (1:3.5). The dispersion process of the masterbatch in base asphalt can effectively be implemented, with good results and a smaller mixing time. The proposed approach may be regarded as a good strategy to achieve energy savings and protection of the environment. More >

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    1722

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    949

  • Open Access

    ARTICLE

    Study on the Thermal Performances of a New Type of Fabricated Thermally Insulating Decorative Wall Material

    Changlin Wang, Yu Tang, Xiao Shen, Wenjing Sun, Guanyong Li
    FDMP-Fluid Dynamics & Materials Processing, Vol.18, No.4, pp. 919-932, 2022, DOI:10.32604/fdmp.2022.019036
    （This article belongs to the Special Issue: Advanced Materials, Processing and Testing Technology)
    Abstract This study proposes three possible keel-surface layer combinations to implement a new type of thermally insulating decorative wall system. A set of 8 samples has been studied. In particular, through theoretical calculations, simulations, and experimental verification, the influence of different types of connecting structures on the overall thermal performance of the wall system has been determined. It has been found that a proper combination of these elements can meet existing energy-saving standards and effectively reduce the energy loss caused by thermal bridges due to the installation of steel keels at the edges of integrated wall More >

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    1283

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    906

  • Open Access

    ARTICLE

    Synthesis of a Novel TiO2@Ag3PO4 Core-Shell Structure with Enhanced Photocatalytic Performance

    Chao Wei, Zhongjin Peng, Yunfei Chen, Yanhai Cheng
    FDMP-Fluid Dynamics & Materials Processing, Vol.18, No.4, pp. 973-984, 2022, DOI:10.32604/fdmp.2022.019772
    （This article belongs to the Special Issue: Advanced Materials, Processing and Testing Technology)
    Abstract Ag3PO4 exhibits a high photocatalytic activity if exposed to visible light, however, it displays bottlenecks such as poor cycle-stability and mediocre ability to degrade methyl orange (MO) because of limited adsorption of MO molecules onto its surface. In this study, nano TiO2 prepared by a one-step method was combined with Ag3PO4 to form a TiO2@Ag3PO4 heterojunction in order to improve this material both in terms of photocatalysis and photostability. After adding a KH-570 silane coupling agent, the photocatalytic performance of TiO2@Ag3PO4 could be improved even further, with the degradation rate of MO maintained at more than 90% after More >

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    1567

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    1134

  • Open Access

    ARTICLE

    Structural Design and Analysis of a Booster Arm Made of a Carbon Fiber Reinforced Epoxy Composite Material

    Songhua Hu, Lixiong Sun, Hongying Xiong
    FDMP-Fluid Dynamics & Materials Processing, Vol.18, No.4, pp. 1083-1088, 2022, DOI:10.32604/fdmp.2022.019038
    （This article belongs to the Special Issue: Advanced Materials, Processing and Testing Technology)
    Abstract An analysis of a booster arm made of a carbon fiber reinforced epoxy composite material is conducted by means of a finite element analysis method. The mechanical properties are also determined through stretching and compression performance tests. It is found that the surface treatment of the fibers causes the silane coupling agent to undergo a chemical reaction on the surface of the glass fiber. The used material succeeds in producing significant vibrations damping (vibration attenuation effect is superior to that obtained with conventional alloy materials). More >

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    1329

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    882

  • Open Access

    ARTICLE

    A Study on a Magnesium-Based Layered Composite Used as a Flame Retardant for Phenolic Epoxy Resins

    Hongxiang Liu, Neng Xiong, Songli Wang, Wei Zhang, Bo Yong
    FDMP-Fluid Dynamics & Materials Processing, Vol.18, No.3, pp. 549-561, 2022, DOI:10.32604/fdmp.2022.017979
    （This article belongs to the Special Issue: Advanced Materials, Processing and Testing Technology)
    Abstract

    The effects of a magnesium-based layered composite on the flammability of a phenolic epoxy resin (EP) are studied. In order to produce the required composite material, first, magnesium hydroxide, aluminum salt and deionized water are mixed into a reactor according to a certain proportion to induce a hydrothermal reaction; then, the feed liquid is filtered out using a solid-liquid separation procedure; finally, the material is dried and crushed. In order to evaluate its effects on the flammability of the EP, first, m-phenylenediamine is added to EP and vacuum defoamation is performed; then, EP is poured into

    … More >

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    1715

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    1137

  • Open Access

    ARTICLE

    Study on the Deformation Mechanism of a Soft Rock Tunnel

    Jianhui Yang, Kai Shen, Shoudong Pan, Shuren Wang, Zhengsheng Zou
    FDMP-Fluid Dynamics & Materials Processing, Vol.18, No.2, pp. 243-255, 2022, DOI:10.32604/fdmp.2022.016677
    （This article belongs to the Special Issue: Advanced Materials, Processing and Testing Technology)
    Abstract The large deformation of soft rock tunnel is one of the key problems to be overcome in the tunnel construction stage. In the present study, the deformation mechanism of a representative tunnel and some related countermeasures are investigated using field tests and engineering geological analysis. Owing to the scarce performances of methods based on other criteria such as small pipe spacing, anchor bolt length and steel frame spacing, a new support scheme is implemented and optimized. Results show that shear failure and bedding sliding are produced under high horizontal stress conditions. The low strength of More >

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    1767

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    1335

  • Open Access

    ARTICLE

    A Study on the Relationship between Anodic Oxidation and the Thermal Load on the Aluminum Alloy Piston of a Gasoline Engine

    Huali Guo, Yi Liang, Zhilong Zhang, Yuanhua Chen
    FDMP-Fluid Dynamics & Materials Processing, Vol.18, No.1, pp. 57-70, 2022, DOI:10.32604/fdmp.2022.017989
    （This article belongs to the Special Issue: Advanced Materials, Processing and Testing Technology)
    Abstract In order to analyze the influence of the anodizing process on the thermal load of an aluminum alloy piston, dedicated temperature tests have been carried out using the Hardness Plug method and the results for the anodized piston have been compared with those obtained separately for an original aluminum piston. In addition, numerical simulations have been conducted to analyze the temperature field and thermal stress distribution. Simulations and experiments show that the maximum temperature of the anodized piston is 16.36% and 5.4% smaller than that of the original piston under the condition of maximum torque More >

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    1969

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    1827

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