Fabrication of monolithic carbon nanofiber/carbon composites

Xiang Ge, Mingqi Chen, Jitong Wang, Donghui Long, Licheng Ling, Wenming Qiao, Isao Mochida, Seong Ho Yoon

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Monolithic carbon nanofiber/carbon (M-CNF/C) composites were fabricated through facile liquid impregnation and hot pressing technologies, using monolithic carbon nanofibers and phenolic resin as reinforcement and carbon matrix precursor, respectively. The M-CNFs are uniformly dispersed in the M-CNF/C composites and display strong interfacial bonding with carbon matrix. Compared with powdered carbon nanofiber reinforced (P-CNF/C) composites, M-CNF/C composites exhibit significantly higher improvement in electrical conductivity, thermal conductivity and mechanical properties. The M-CNF/C composites also exhibit much lower friction coefficients (0.09-0.12) and wear losses (0.12-0.43 mg) than those of P-CNF/C composites. The superior enhancement is attributed to the unique 3D interconnected structure and high integrity of M-CNFs, which could dramatically increase conductive channels, significantly improve mechanical properties and remarkably decrease friction coefficient and wear loss of M-CNF/C composites. Furthermore, the electrical, thermal, mechanical and tribological properties of M-CNF/C composites could be adjusted by using M-CNFs with different bulk densities. The present work suggests the M-CNF/C composites a widespread potential as high-performance tribological materials.

Original languageEnglish
Pages (from-to)6443-6450
Number of pages8
JournalRSC Advances
Volume6
Issue number8
DOIs
Publication statusPublished - Jan 1 2016

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All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Ge, X., Chen, M., Wang, J., Long, D., Ling, L., Qiao, W., ... Yoon, S. H. (2016). Fabrication of monolithic carbon nanofiber/carbon composites. RSC Advances, 6(8), 6443-6450. https://doi.org/10.1039/c5ra26049c