Results 41 to 50 of about 27,273 (291)

Drug delivery system of curcumin to the lungs based on poly(3-alloxyloxy-1,2-propylene succinate)-sebacic acid copolymers

open access: yesJournal of Pharmaceutical Analysis
Polyanhydrides are attractive materials for drug delivery matrices as a result of their cytocompatibility and fast degradation rate. Here, we synthesized and characterized copolymers of poly(3-allyloxy-1,2-propylene succinate) (PSAGE) and sebacic acid ...
Karolina Knap   +8 more
doaj   +1 more source

Influence of MWCNT distribution in alumina prepared by colloidal processing for EDM applications [PDF]

open access: yesProcessing and Application of Ceramics
Ceramics are known for their high temperature stability, hardness, wear resistance and chemical inertness which make them an ideal choice in designing devices for extreme conditions. Machining of ceramics using conventional methods are ruled out owing to
Sachidananda T.G., Chandrashekar Adake
doaj   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

open access: yesAdvanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios   +5 more
wiley   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth   +6 more
wiley   +1 more source

Fique Fabric: A Promising Reinforcement for Polymer Composites

open access: yes, 2018
A relatively unknown natural fiber extracted from the leaves of the fique plant, native of the South American Andes, has recently shown potential as reinforcement of polymer composites for engineering applications.
Foluke Salgado de Assis   +15 more
core   +1 more source

Synthesis of nanocomposites of montmorillonite with carbon nanotubes as a potential material for water purification

open access: yesAPL Materials
The main goal of this research is to create nanocomposites based on unmodified and iron-modified (FeNP) montmorillonite (Mt) and carbon nanotubes (CNT) synthesized using the chemical vapor deposition method.
Maciej Gubernat   +5 more
doaj   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal   +2 more
wiley   +1 more source

Polymer Composites Filled with RB Ceramics Particles as Low Friction and High Wear Resistant Filler

open access: yesTribology Online, 2010
In this study, five kinds of thermoplastic resin/RB ceramics composite materials were developed, and their tribological properties were investigated under dry and oil lubricated conditions.
Motoharu Akiyama   +3 more
doaj   +1 more source

Low‐Temperature Imidization of Polyimides (PI) for Scalable Manufacturing of Flexible Wearable Electronics

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐temperature imidization of PEG‐modified polyimide enables fully screen‐printed, roll‐to‐roll fabrication of flexible electrodes on PET substrates, delivering robust mechanical durability and reliable ECG/EMG signal performance for wearable electronics.
Akib Abdullah Khan, Jong‐Hoon Kim
wiley   +1 more source

Dynamic Mechanical Analysis of Thermally Aged Fique Fabric-Reinforced Epoxy Composites

open access: yes, 2021
Dynamic mechanical analysis (DMA) is one of the most common methods employed to study a material’s viscoelastic properties. The effect of thermal aging on plain epoxy and a fique fabric-reinforced epoxy composite was investigated by comparing the mass ...
Henry Lopera   +13 more
core   +1 more source

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