Results 11 to 20 of about 396,927 (251)

Preparation and performance of random- and oriented-fiber membranes with core–shell structures via coaxial electrospinning

open access: yesFrontiers in Bioengineering and Biotechnology, 2023
The cells and tissue in the human body are orderly and directionally arranged, and constructing an ideal biomimetic extracellular matrix is still a major problem to be solved in tissue engineering.
Yunhuan Li   +8 more
doaj   +1 more source

Application Progress of Resonance Sound Absorption Structure in Aero Engines

open access: yesHangkong gongcheng jinzhan, 2019
Resonance sound absorption structure is a sandwich structure composed of perforated panel, honeycomb and rigid backplane. This structure is widely used in aircraft engine nacelle and has achieved good noise reduction effect.
Ji Shuangying, Hao Wei, Liu Jie
doaj   +1 more source

Effect of Ethanolamine on Corrosion Behavior of WB36CN1 Steel in Simulated Secondary Circuit of Pressurized Water Reactor

open access: yesInternational Journal of Electrochemical Science, 2020
Effect of ethanolamine (ETA) on corrosion behavior of WB36CN1 low alloy steel in simulated pressurized water reactor (PWR) secondary circuit conditions was studied by electrochemical methods, scanning electron microscopy (SEM), 3D microscopy, and X-ray ...
Jian Song   +4 more
doaj   +1 more source

Image Analysis of Synthesized Corrosion Products Applied to In-situ Analysis of Q235 Steel under Simulated Marine Atmosphere

open access: yesInternational Journal of Electrochemical Science, 2019
The main constituents of rust layers of carbon steel generated in marine atmosphere, goethite and lepidocrocite, have been synthesized in the laboratory.
Xinxin Zhang   +6 more
doaj   +1 more source

Recent Advances in Colloidal Photonic Crystal-Based Anti-Counterfeiting Materials

open access: yesCrystals, 2019
Colloidal photonic crystal (PC)-based anti-counterfeiting materials have been widely studied due to their inimitable structural colors and tunable photonic band gaps (PBGs) as well as their convenient identification methods.
Mengyao Pan   +9 more
doaj   +1 more source

Microstructure, strength and toughness of C/SiC composite modified by PIP-SiC matrix

open access: yesJournal of Aeronautical Materials, 2020
The matrix of fiber bundle composite C/SiC was modified by the combination means of precursor infiltration and pyrolysis (PIP) and chemical vapor infiltration (CVI).
MENG Zhixin   +4 more
doaj   +1 more source

Effects of soaking time on the microstructure and mechanical properties of Nb-NbC/Fe core–shell rod-reinforced cast-iron-matrix composite fabricated through two-step in situ solid-phase diffusion

open access: yesJournal of Materials Research and Technology, 2020
To overcome the disadvantages of low toughness of conventional particle reinforced steel/iron-based composites, a novel niobium-niobium carbide/iron (Nb-NbC/Fe) core–shell rod-reinforced cast-iron-matrix composites were fabricated through two-step in ...
Lisheng Zhong   +4 more
doaj   +1 more source

Achieving ultra-broadband electromagnetic wave absorption in high-entropy transition metal carbides (HE TMCs)

open access: yesJournal of Advanced Ceramics, 2022
Electronic devices pervade everyday life, which has triggered severe electromagnetic (EM) wave pollution. To face this challenge, developing EM wave absorbers with ultra-broadband absorption capacity is critically required.
Weiming Zhang   +5 more
doaj   +1 more source

Impact of Alternative Stabilization Strategies for the Production of PAN-Based Carbon Fibers with High Performance

open access: yesFibers, 2020
The aim of this work is to review a possible correlation of composition, thermal processing, and recent alternative stabilization technologies to the mechanical properties.
Spyridon Soulis   +3 more
doaj   +1 more source

Enhanced impregnation behavior and interfacial bonding in CF/PEEK prepreg filaments for 3D printing application

open access: yesJournal of Materials Research and Technology, 2022
The high specific strength and modulus of carbon fiber-reinforced poly-ether-ether-ketone composites (CF/PEEK) have made them particularly useful for structural applications.
Yingjie Qin   +6 more
doaj   +1 more source

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