Results 31 to 40 of about 196,486 (338)

Catalyzing Benzoxazine Polymerization with Titanium-Containing POSS to Reduce the Curing Temperature and Improve Thermal Stability

open access: yesMolecules, 2023
Trisilanolphenyl-polyhedral oligomeric silsesquioxane titanium (Ti-Ph-POSS) was synthesized through the corner-capping reaction, and Ti-Ph-POSS was dispersed in benzoxazine (BZ) to prepare Ti-Ph-POSS/PBZ composite materials. Ti-Ph-POSS could catalyze the
Xiaoyi Sun   +4 more
doaj   +1 more source

High-Ampacity Power Cables of Tightly-Packed and Aligned Carbon Nanotubes [PDF]

open access: yesAdvanced Functional Materials 24, 3241 (2014), 2014
We characterize the current-carrying capacity (CCC), or ampacity, of highly-conductive, light, and strong carbon nanotube (CNT) fibers by measuring their failure current density (FCD) and continuous current rating (CCR) values. We show, both experimentally and theoretically, that the CCC of these fibers is determined by the balance between current ...
arxiv   +1 more source

Carbon Fiber Biocompatibility for Implants [PDF]

open access: yesFibers, 2016
Carbon fibers have multiple potential advantages in developing high-strength biomaterials with a density close to bone for better stress transfer and electrical properties that enhance tissue formation. As a breakthrough example in biomaterials, a 1.5 mm diameter bisphenol-epoxy/carbon-fiber-reinforced composite rod was compared for two weeks in a rat ...
openaire   +4 more sources

Templated synthesis of spinel cobaltite MCo2O4 (M=Ni, Co and Mn) hierarchical nanofibers for high performance supercapacitors

open access: yesJournal of Materiomics, 2021
Rational construction of transitional metal oxides electrode materials with suitable structure and composition is an effective strategy of improving their electrochemical performance.
Xuemin Yin   +4 more
doaj  

Broadband Supercontinuum Generation in PCF, HNLF and ZBLAN Fiber with a Carbon-Nanotube-based Passively Mode-locked Erbium-doped Fiber Laser [PDF]

open access: yes1. Proc. SPIE 10516, 2.Proc. SPIE 10516, 3. pp.2993-2995, 2020
We demonstrate the broadband supercontinuum (SC) generation in photonic crystal fiber (PCF), highly nonlinear fiber (HNLF) and ZBLAN (ZrF4-BaF2-LaF3-AlF3-NaF) fiber with a passively mode-locked erbium-doped fiber laser (EDFL). The passively mode-locked EDFL incorporates a CNT-based saturable absorber and has achieved a pulse width of 620 fs with a ...
arxiv   +1 more source

Correlation between orientation behavior of polyacrylonitrile precursor and structure of nascent fiber

open access: yesJournal of Aeronautical Materials, 2019
Polyacrylonitrile (PAN) precursors with different orientation behaviors were prepared by changing the coagulation bath conditions such as concentration and temperature.
RUAN Ruyu   +3 more
doaj   +1 more source

Large-area fabrication of low- and high-spatial-frequency laser-induced periodic surface structures on carbon fibers [PDF]

open access: yesCarbon 133 (2018) 176-185, 2018
The formation and properties of laser-induced periodic surface structures (LIPSS) were investigated on carbon fibers under irradiation of fs-laser pulses characterized by a pulse duration $\tau$ = 300 fs and a laser wavelength $\lambda$ = 1025 nm. The LIPSS were fabricated in an air environment at normal incidence with different values of the laser ...
arxiv   +1 more source

An Integrated Method for the Vibroacoustic Evaluation of a Carbon Fiber Bouzouki

open access: yesApplied Sciences, 2023
An integrated method, which combines Electronic Speckle Pattern Interferometry, impulse response measurements, finite element method simulations, and psychoacoustic tests, is proposed to evaluate the vibroacoustic behavior of a carbon fiber bouzouki ...
Spyros Brezas   +16 more
doaj   +1 more source

The effect of hydrogen bond on the thermal and mechanical properties of furan epoxy resins: Molecular dynamics simulation study

open access: yesPolymer Testing, 2021
The hydrogen bonds (H-bonds) are employed for the thermal and mechanical property enhancement of epoxy networks; however, the formation and evolution of H-bonds, especially in emerging bio-based furan epoxy, cannot be deeply understood at the atomic ...
Wanying Li   +4 more
doaj  

Andic oxidation of high-modulus carbon fibers in sulfuric acid under different electric fields

open access: yesCailiao gongcheng
The inert surface of high-modulus carbon fiber leads to the weak interface between it and the resin matrix, which limits the performance of high-modulus carbon fiber composite in many application scenarios.
XIAO Jing   +4 more
doaj   +1 more source

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