Preparation of single- And multi-walled carbon nanotube solids and their mechanical properties

Translated title of the contribution: Preparation of single- And multi-walled carbon nanotube solids and their mechanical properties

Go Yamamoto, Yoshinori Sato, Makoto Ohtsubo, Toru Takahashi, Mamoru Omori, Akira Okubo, Kazuyuki Tohji, Toshiyuki Hashida

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The starting materials used in this study were single-walled carbon nanotubes (SWCNTs) synthesized by an arc discharge method and multi-walled carbon nanotubes (MWCNTs) prepared by a CVD method (NanoLab, Inc.). A spark plasma sintering (SPS) method was utilized to solidify SWCNTs and MWCNTs. To facilitate the solidification, phenol resin (50 mass%) was added to the purified SWCNTs and MWCNTs. The compaction pressures used in the SPS method were 40 MPa for SWCNTs and SOMPa for MWCNTs, and the temperature was 1000°C. The mechanical properties of the solidified SWCNTs and MWCNTs were examined using a small punch (SP) testing method. The SWCNT solids showed significant non-linear deformation response, producing quasi-ductile fracture behavior, and Young's modulus and work of fracture were 1.6 GPa and 15.8N·mm, respectively. In contrast, the MWCNT solids showed brittle fracture behavior, and Young's modulus and work of fracture were 1.5 GPa and 4.4 N·mm, respectively. TEM observations revealed that the fracture of the SWCNT solids was characterized by pull out of SWCNT bundles, and that of the MWCNT solids was characterized by "bamboo-like" failure of MWCNTs.

Translated title of the contributionPreparation of single- And multi-walled carbon nanotube solids and their mechanical properties
Original languageJapanese
Pages (from-to)831-835
Number of pages5
JournalFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume52
Issue number11
DOIs
Publication statusPublished - 2005 Nov

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Metals and Alloys
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Preparation of single- And multi-walled carbon nanotube solids and their mechanical properties'. Together they form a unique fingerprint.

Cite this