Results 91 to 100 of about 3,961,103 (387)

Molecular Modeling of the Microstructure Evolution during the Carbonization of PAN-Based Carbon Fibers [PDF]

open access: yesarXiv, 2017
Development of high strength carbon fibers (CFs) requires an understanding of the relationship between the processing conditions, microstructure and resulting properties. We developed a molecular model that combines kinetic Monte Carlo (KMC) and molecular dynamics (MD) techniques to predict the microstructure evolution during the carbonization process ...
arxiv  

High voltage carbon-based cathodes for non-aqueous aluminium-ion batteries [PDF]

open access: yesarXiv, 2020
Four different forms of carbon: activated carbon (AC) from human hair, AC from hemp fibers, a carbon fullerene extract consisting of C$_{60}$ and C$_{70}$ fullerene (CFEx) and Super-P carbon black were tested and compared as cathodes for non-aqueous aluminium-ion batteries (AIBs).
arxiv  

From Nature to Engineering: Mortar Volume and Interfacial Mechanics in Bioinspired Ceramics

open access: yesAdvanced Engineering Materials, EarlyView.
Inspired by natural armors like nacre, this study explores how varying the volume fraction of the soft mortar layer impacts the interfacial strength and toughness of bioinspired ceramics. Experimental and computational analysis reveals that higher mortar volumes increase energy dissipation but reduce interfacial stiffness, offering insights for ...
Ehsan Azad   +4 more
wiley   +1 more source

Effect of Size of Carbon Fiber on the Wear of PTFE Composites and Aluminum Alloy Counter Face

open access: yesTribology Online, 2009
PTFE was reinforced with PAN-based, Pitch-based (carbonized and graphitized) carbon fibers and vapor-grown carbon fibers and their tribological properties were examined. Aluminum alloy was used as the counter face material. The wear rate of PTFE was only
Agung Wibowo   +4 more
doaj   +1 more source

High-Performance Numerical Modeling of Nanofabrics with Distinct Element Method [PDF]

open access: yesarXiv, 2019
A universal framework for modeling composites and fabrics of micro- and nanofibers, such as carbon nanotubes, carbon fibers and amyloid fibrils, is presented. Within this framework, fibers are represented with chains of rigid bodies, linked with elastic bonds. Elasticity of the bonds utilizes recently developed enhanced vector model formalism. The type
arxiv  

Combining Metal Additive Manufacturing and Casting Technology: High Performance Cooling Channels for Electric Powertrain Components

open access: yesAdvanced Engineering Materials, EarlyView.
When realized as inserts in high‐pressure die casting, aluminum cooling channels for electric powertrain components and similar applications typically require a stabilizing filler to survive the process. The present study investigates relinquishing this filler using additively manufactured inserts promising performance improvements.
Dirk Lehmhus   +9 more
wiley   +1 more source

Performance Comparison of Surface Sensitizers for Diode Laser Powder Bed Fusion of Polyamide 12

open access: yesAdvanced Engineering Materials, EarlyView.
Laser‐generated nanoparticles transform standard PA12 powders into high‐performance, dye‐free feedstocks for diode laser 3D printing. Despite identical absorbance at 808 nm, CuS, LaB6, and CB coatings reveal striking differences in fusion and strength—unlocking new design space for recyclable, industrial‐grade polymers.
Michael Willeke   +9 more
wiley   +1 more source

Effect of the addition of nano carbon black on the interfacial reactions in the short carbon fiber reinforced SiC-BN-ZrC-ZrB2 composites

open access: yesCarbon Trends, 2022
Interfacial reactions and their control are crucial for improving the performance of short carbon fiber (Csf) reinforced SiC-BN-ZrC-ZrB2 composites. To clarify whether nano carbon black (NCB) could prevent these reactions, Csf/SiC–NCB, Csf/BN–NCB, Csf ...
Pengfei Zhang   +7 more
doaj  

Synthesis, physical and chemical properties, and potential applications of graphite fluoride fibers [PDF]

open access: yes
Graphite fluoride fibers can be produced by fluorinating pristine or intercalated graphite fibers. The higher the degree of graphitization of the fibers, the higher the temperature needed to reach the same degree of fluorination.
Hung, Ching-Cheh   +2 more
core   +1 more source

Phosphorus functionalization for the rapid preparation of highly nanoporous submicron-diameter carbon fibers by electrospinning of lignin solutions

open access: yes, 2018
This work presents a fast and versatile method to prepare carbon fibers from lignin. It involves the production of submicron-sized phosphorus-functionalized lignin fibers in only one step by electrospinning of lignin/H3PO4 solutions.
F. J. García-Mateos   +4 more
semanticscholar   +1 more source

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