TY - GEN
T1 - Hybrid fiber fabrication using an AC electric field and capillary action
AU - Yeo, Woonhong
AU - Chung, Jae Hyun
AU - Lee, Kyong Hoon
AU - Liu, Yaling
AU - Liu, Wing Kam
N1 - Publisher Copyright:
Copyright © 2007 by ASME.
PY - 2007
Y1 - 2007
N2 - We present a novel hybrid fiber fabrication method for nanostructured hybrid-materials, using an AC electric field and capillary action. Through this fabrication process, hybrid fibers composed of single walled carbon nanotubes (SWCNTs) and silicon carbide (SiC) nanowires were systematically manufactured. It was demonstrated that both diameter and length of hybrid nanofibers could be controlled by manipulating parameters, such as the mixing ratio of SWCNTs to SiC nanowires, concentration of solution, immersion time, volume of solution, and withdrawal rate. In the fabricated hybrid fibers, the SiC nanowires functioned as a structural frame (host filler materials), while SWCNTs were employed for their extraordinary mechanical and electrical properties as a binder or net. Using this method, the fabrication speed of the hybrid fiber was increased by 20 fold compared to the existing method[1]. According to the simulation and modeling results, the fibers are formed by the following three steps; (1) nanowire bridge formation by dielectrophoresis in solution (2) nanowire fiber formation by compression due to capillary action (3) alignment by the torque due to the capillary action. The proposed processing technology may provide an ample opportunity for fabricating a long hybrid-nanofiber.
AB - We present a novel hybrid fiber fabrication method for nanostructured hybrid-materials, using an AC electric field and capillary action. Through this fabrication process, hybrid fibers composed of single walled carbon nanotubes (SWCNTs) and silicon carbide (SiC) nanowires were systematically manufactured. It was demonstrated that both diameter and length of hybrid nanofibers could be controlled by manipulating parameters, such as the mixing ratio of SWCNTs to SiC nanowires, concentration of solution, immersion time, volume of solution, and withdrawal rate. In the fabricated hybrid fibers, the SiC nanowires functioned as a structural frame (host filler materials), while SWCNTs were employed for their extraordinary mechanical and electrical properties as a binder or net. Using this method, the fabrication speed of the hybrid fiber was increased by 20 fold compared to the existing method[1]. According to the simulation and modeling results, the fibers are formed by the following three steps; (1) nanowire bridge formation by dielectrophoresis in solution (2) nanowire fiber formation by compression due to capillary action (3) alignment by the torque due to the capillary action. The proposed processing technology may provide an ample opportunity for fabricating a long hybrid-nanofiber.
UR - http://www.scopus.com/inward/record.url?scp=84928597953&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84928597953&partnerID=8YFLogxK
U2 - 10.1115/IMECE200742305
DO - 10.1115/IMECE200742305
M3 - Conference contribution
AN - SCOPUS:84928597953
T3 - ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
SP - 267
EP - 272
BT - Micro and Nano Systems
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 2007 International Mechanical Engineering Congress and Exposition, IMECE 2007
Y2 - 11 November 2007 through 15 November 2007
ER -