Results 11 to 20 of about 6,887,631 (298)

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

Modelling of cutting fibrous composite materials: current practice [PDF]

open access: yes, 2015
Using fibre reinforced polymers (FRP) is increasing across many industries. Although FRP are laid-up in the near-net shape, several cutting operations are necessary to meet quality and dimensional requirements.
Kahwash, Fadi   +5 more
core   +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

A novel bioactive nano-composite: synthesis and characterisation with potential use as dental restorative material [PDF]

open access: yes, 2009
PhDIt is desirable for a dental restorative material to have bioactive and bonding properties. This study focuses on the synthesis of a covalently-linked polyurethane/nanohydroxyapatite (PU/nHA) composite and evaluates its chemical, physical, thermal ...
Khan, Abdul Samad
core   +2 more sources

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

Reliability analysis and micromechanics: A coupled approach for composite failure prediction [PDF]

open access: yes, 2011
This work aims at associating two classical approaches for the design of composite materials: first, reliability methods that allow to account for the various uncertainties involved in the composite materials behaviour and lead to a rational estimation ...
Welemane, Hélène   +3 more
core   +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

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