Effect of electrophoretic deposition of carbon nanotubes on the tensile behaviors of carbon fiber tow

2016 ◽  
Vol 50 (29) ◽  
pp. 4057-4063
Author(s):  
Shanshan Xiao ◽  
Hui Mei ◽  
Qianglai Bai ◽  
Daoyang Han ◽  
Laifei Cheng
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Fiber ◽  
Tensile Properties ◽  
Electrophoretic Deposition ◽  
Tensile Loading ◽  
Deposition Process ◽  
Tensile Behavior ◽  
Heat Treated ◽  
Treated Carbon

The effect of carbon nanotubes introduced by electrophoretic deposition on the tensile behavior of carbon fiber tow was investigated. As-received and heat-treated carbon fiber tows that deposited with carbon nanotubes and their counterparts were tested under monotonous tensile loading. Morphology and presence state of carbon nanotubes on the surface of carbon fiber tows were observed for determining the role of carbon nanotubes. Results showed that tensile properties of carbon fiber tow were not damaged by the electrophoretic deposition process. Due to the uniformly distributed carbon nanotubes network on the surface of carbon fiber tow, the fracture of filaments were obviously constrained by carbon nanotubes instead of instantaneous separation. What’s more, carbon nanotubes exhibited a stronger confining ability for heat-treated carbon fiber tow and improved their tensile properties significantly.

The role of texturing and microstructure evolution on the tensile behavior of heat-treated Inconel 625 produced via laser powder bed fusion

2020 ◽  
Vol 769 ◽  
pp. 138500 ◽  
Author(s):  
Giulio Marchese ◽  
Simone Parizia ◽  
Masoud Rashidi ◽  
Abdollah Saboori ◽  
Diego Manfredi ◽  
...  
Keyword(s):  
Microstructure Evolution ◽  
Tensile Behavior ◽  
Inconel 625 ◽  
Powder Bed Fusion ◽  
Laser Powder Bed Fusion ◽  
Powder Bed ◽  
Heat Treated

Effect of Mo Addition on Room and High Temperature Tensile Behavior of Al-Si-Cu-Mg Alloy in As-Cast and Heat-Treated Conditions

2019 ◽  
Vol 1155 ◽  
pp. 71-79
Author(s):  
Mohammadreza Zamani ◽  
Stefania Toschi ◽  
Alessandro Morri ◽  
Lorella Ceschini ◽  
Salem Seifeddine
Keyword(s):  
High Temperature ◽  
Tensile Behavior ◽  
Mg Alloy ◽  
High Melting Point ◽  
Treated Condition ◽  
Heat Treated ◽  
Heat Treated Condition ◽  
High Temperature Tensile ◽  
Negligible Influence

This study focuses on the role of Mo addition on the mechanical properties of an Al-Si-Cu-Mg alloy in as-cast and heat-treated condition at ambient and elevated temperature. Addition of 0.4 to 0.6 wt.% Mo forms Mo-bearing dispersoid particles which have a relatively high melting point and improve high temperature tensile strength. Ductility suffered in the presence of Mo-bearing particles. Trace addition of Mo up to 0.6 wt.% has a negligible influence on the yield strength and hardness of Al-Si-Cu-Mg alloy in as-cast and heat-treated conditions at ambient temperature and 250 °C.

scholarly journals Electrophoretic Deposition of Layer-by-Layer Unsheathed Carbon Nanotubes—A Step Towards Steerable Surface Roughness and Wettability

Materials ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 595 ◽  
Author(s):  
Emil Korczeniewski ◽  
Monika Zięba ◽  
Wojciech Zięba ◽  
Anna Kolanowska ◽  
Paulina Bolibok ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Electrophoretic Deposition ◽  
Fiber Surface ◽  
Deposition Process ◽  
Layer By Layer ◽  
Major Step ◽  
Multiwalled Carbon ◽  
Water Contact ◽  
Wide Range

It is well known that carbon nanotube (CNT) oxidation (usually with concentrated HNO3) is a major step before the electrophoretic deposition (EPD). However, the recent discovery of the “onion effect” proves that multiwalled carbon nanotubes are not only oxidized, but a simultaneous unsheathing process occurs. We present the first report concerning the influence of unsheathing on the properties of the thus-formed CNT surface layer. In our study we examine how the process of gradual oxidation/unsheathing of a series of multiwalled carbon nanotubes (MWCNTs) influences the morphology of the surface formed via EPD. Taking a series of well-characterized and gradually oxidized/unsheathing Nanocyl™ MWCNTs and performing EPD on a carbon fiber surface, we analyzed the morphology and wettability of the CNT surfaces. Our results show that the water contact angle could be gradually changed in a wide range (125–163°) and the major property determining its value was the diameter of aggregates formed before the deposition process in the solvent. Based on the obtained results we determined the parameters having a crucial influence on the morphology of created layers. Our results shed new light on the deposition mechanism and enable the preparation of surfaces with steerable roughness and wettability.

Raman scattering study for heat-treated carbon nanotubes: The origin of ≈1855cm−1 Raman band

2006 ◽  
Vol 418 (1-3) ◽  
pp. 109-114 ◽  
Author(s):  
M. Jinno ◽  
Y. Ando ◽  
S. Bandow ◽  
J. Fan ◽  
M. Yudasaka ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Raman Scattering ◽  
Raman Band ◽  
Heat Treated ◽  
Scattering Study ◽  
Treated Carbon
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