Gold/Carbon Composite Tubes and Gold Nanowires by Impregnating Templates with Hydrogen Tetrachloroaurate/Acetone Solutions

Nano Letters ◽  
2004 ◽  
Vol 4 (6) ◽  
pp. 1121-1125 ◽  
Author(s):  
Petra Göring ◽  
Eckhard Pippel ◽  
Herbert Hofmeister ◽  
Ralf B. Wehrspohn ◽  
Martin Steinhart ◽  
...  
Keyword(s):  
Carbon Composite ◽  
Gold Nanowires ◽  
Composite Tubes ◽  
Hydrogen Tetrachloroaurate

Behavior of concrete columns confined by carbon composite tubes

2004 ◽  
Vol 31 (2) ◽  
pp. 178-188 ◽  
Author(s):  
Won-Kee Hong ◽  
Hee-Cheul Kim
Keyword(s):  
Large Scale ◽  
Glass Fibers ◽  
Testing Machine ◽  
Concrete Columns ◽  
Longitudinal Axis ◽  
Carbon Composite ◽  
Filament Winding ◽  
Axial Loads ◽  
Composite Tubes ◽  
Filament Wound

The carbon composite tube can play an important role in replacing or complementing longitudinal and transverse reinforcing steels by providing ductility and strength for conventional columns. In this study, both experimental and analytical investigations of axial behavior of large-scale circular and square concrete columns confined by carbon composite tubes are presented. The specimens are filament-wound carbon composite with 90° + 90°, 90° ± 60°, 90° ± 45°, and 90° ± 30° winding angles with respect to a longitudinal axis of a tube. The instrumented large-scale concrete-filled composite tubes are subjected to monotonic axial loads exerted by a 10 000 kN universal testing machine (UTM). The influence of transverse dilation, winding angle, thickness of a tube, as well as shape of the column section on stress–strain relationships of the confined columns is identified and discussed. Proposed equations to predict both strength and ductility of confined columns by carbon composite tubes demonstrate good correlation with test data obtained from large-scale specimens.Key words: carbon composites, glass fibers, strength, filament winding.

Fast densification of thick-walled carbon/carbon composite tubes using electrically coupled chemical vapor infiltration

Carbon ◽  
2013 ◽  
Vol 57 ◽  
pp. 371-379 ◽  
Author(s):  
Wu Xiaojun ◽  
Cheng Wen ◽  
Qiao Shengru ◽  
Li Yan ◽  
Wei Lianfeng ◽  
...  
Keyword(s):  
Chemical Vapor ◽  
Carbon Composite ◽  
Chemical Vapor Infiltration ◽  
Composite Tubes ◽  
Vapor Infiltration

Experimental and Numerical Investigation on the Torsional Behaviour of Filament Winding-Manufactured Composite Tubes

2016 ◽  
Vol 834 ◽  
pp. 173-178 ◽  
Author(s):  
Gabriel Mansour ◽  
Kostas Tzikas ◽  
Dimitrios Tzetzis ◽  
Apostolos Korlos ◽  
Dimitrios Sagris ◽  
...  
Keyword(s):  
Torsion Test ◽  
Numerical Approach ◽  
Carbon Composite ◽  
Filament Winding ◽  
Torsional Loading ◽  
Theoretical Relation ◽  
Composite Tubes ◽  
Element Analysis ◽  
Test Speed ◽  
Twisting Angle

The present work is focused in the examination of the torsional behaviour of composite tubes by a combined experimental and numerical approach. Glass and carbon composite tubes were manufactured by the filament winding technique. All the tubes were fabricated with glass and carbon Fiber orientation at ±45°. The effect of the torsional loading on the mechanical strength of the glass and carbon composite tubes was initially studied experimentally. Angular velocity of 5° per min was used as torsion test speed while torque-twisting angle changes were recorded. The torsional behaviour of composite tubes was also simulated using Finite Element Analysis (FEA). An elastic orthotropic composite model was used for the simulations. The normal and shear stress contours were obtained from the FE models, while the theoretical relation of the torque versus the twisting angle was calculated. Comparison of the numerical and experimentally obtained results has shown a relatively similar torsional behaviour.

Lateral behavior of full-scale concrete-filled carbon composite columns

2004 ◽  
Vol 31 (2) ◽  
pp. 189-203 ◽  
Author(s):  
Won-Kee Hong ◽  
Hee-Cheul Kim ◽  
Suk-Han Yoon
Keyword(s):  
Concrete Strength ◽  
Concrete Columns ◽  
Carbon Composite ◽  
Full Scale ◽  
Filament Winding ◽  
Stress Strain ◽  
Composite Tubes ◽  
Moment Capacity ◽  
Composite Columns ◽  
Lateral Behavior

Full scale concrete-filled carbon composite columns without longitudinal and transverse reinforcing steels are tested to investigate the lateral behavior of columns confined with carbon composite tubes. In the present study, the full-scale circular and square concrete-filled carbon composite tubes (CFCTs) with various winding angles with respect to longitudinal axes of the tubes are subjected to lateral loads under a constant axial load. The influence of thickness and winding angle of carbon tubes on the lateral behavior of concrete columns is studied both experimentally and analytically, demonstrating that the calculated ultimate moment capacity of confined columns compares well with test data. For this analytical process, stress–strain relationships of confined concrete columns uncovered by the authors are used to identify the distribution of confined compressive concrete strength at failure. This stress–strain model considers the influence of winding orientation of carbon fibers on the confining capability of the concrete core.Key words: carbon composite, lateral capacity of confined column, strength, filament winding.

Dynamic collapse mode evolution in carbon composite tubes

2015 ◽  
Vol 3 ◽  
pp. 55-58 ◽  
Author(s):  
Michael Pinto ◽  
Arun Shukla
Keyword(s):  
Carbon Composite ◽  
Composite Tubes ◽  
Collapse Mode

Investigation of Porous Silicon/Carbon Composite as Anodes for Lithium Ion Batteries

2015 ◽  
Vol 30 (4) ◽  
pp. 351 ◽  
Author(s):  
HUANG Yan-Hua ◽  
HAN Xiang ◽  
CHEN Hui-Xin ◽  
CHEN Song-Yan ◽  
YANG Yong
Keyword(s):  
Porous Silicon ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Carbon Composite ◽  
Silicon Carbon
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