Carbon nanotube-SiO2 composites by colloidal processing
Arvanitelis C, Jayaseelan DD, Cho J, Boccaccini AR (2008)
Publication Type: Journal article
Publication year: 2008
Journal
Publisher: Maney Publishing
Pages Range: 155-158
Journal Issue: 107
DOI: 10.1179/174367608X263412
Abstract
The surfactants assisted colloidal processing of 1.0 wt-% carbon nanotube (CNT)-SiO2 composites using acid treated CNTs and colloidal silica has been investigated. By using different combinations of anionic and cationic surfactants five systems were developed with the aim of coating the CNTs with silica particles and creating a homogenously dispersed composite. Sintering of CNT-SiO2 composites was performed for 3 h at 1300°C in argon atmosphere. Pressureless sintering yielded composites with a density >95% of the theoretical. X-ray diffraction analysis showed the presence of cristobalite, but no other crystalline phases were detected in the sintered composites. Microstructural observation revealed isolated CNTs in the SiO2 matrix both in the as dried powder and in the sintered samples. It is concluded that the simple colloidal process developed here can be a convenient alternative to the sol-gel based methods used for fabrication of inorganic matrix composites containing CNTs. © 2008 Institute of Materials, Minerals and Mining.
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APA:
Arvanitelis, C., Jayaseelan, D.D., Cho, J., & Boccaccini, A.R. (2008). Carbon nanotube-SiO2 composites by colloidal processing. Advances in Applied Ceramics, 107, 155-158. https://doi.org/10.1179/174367608X263412
MLA:
Arvanitelis, C., et al. "Carbon nanotube-SiO2 composites by colloidal processing." Advances in Applied Ceramics 107 (2008): 155-158.
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