Fabrication of Al-coated CNF reinforced aluminum matrix composite by pressureless infiltration

Chitoshi Masuda, Mitsunori Kawaguchi, Masaki Yosioka, Fumio Ogawa, Hidetosi Fujii

Research output: Contribution to journalArticle

Abstract

Al-coated carbon nanofiber(CNF) reinforced aluminum matrix composites were fabricated by pressureless infiltration at 850°C in the presence of N2 into a CNF-Mg-Al preform. Aluminum coating on the CNF was obtained by Chemical Vapor Deposition(CVD) in order to improve the wettability and aluminum coating layer was about 10 nm on the CNF surface at 500°C and for holding time of 48 h. The effects of the preform fabrication conditions, such as pressure, temperature, and Mg contents on the infiltration were discussed. As the pressure was a 200 kPa at room temperature, the infiltration depth was largest. Moreover, Mg content was about 30% to obtain the largest infiltration depth. The ratio of non-coated to coated CNF was 0.5 to show the largest infiltration depth and the hardness and modulus of that composite including Al coated CNF were about Hv240 and 85 GPa, respectively.

Original languageEnglish
Pages (from-to)240-246
Number of pages7
JournalNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
Volume80
Issue number4
DOIs
Publication statusPublished - 2016

Fingerprint

Carbon nanofibers
infiltration
Aluminum
Infiltration
aluminum
Fabrication
fabrication
composite materials
carbon
Composite materials
matrices
Aluminum coatings
aluminum coatings
preforms
wettability
Wetting
Chemical vapor deposition
hardness
Hardness
vapor deposition

Keywords

  • Aluminum
  • Aluminum coated carbon nanofiber(CNF)
  • Composite
  • Preform
  • Pressureless infiltration
  • Wettability

ASJC Scopus subject areas

  • Mechanics of Materials
  • Materials Chemistry
  • Metals and Alloys
  • Condensed Matter Physics

Cite this

Fabrication of Al-coated CNF reinforced aluminum matrix composite by pressureless infiltration. / Masuda, Chitoshi; Kawaguchi, Mitsunori; Yosioka, Masaki; Ogawa, Fumio; Fujii, Hidetosi.

In: Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals, Vol. 80, No. 4, 2016, p. 240-246.

Research output: Contribution to journalArticle

Masuda, Chitoshi ; Kawaguchi, Mitsunori ; Yosioka, Masaki ; Ogawa, Fumio ; Fujii, Hidetosi. / Fabrication of Al-coated CNF reinforced aluminum matrix composite by pressureless infiltration. In: Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals. 2016 ; Vol. 80, No. 4. pp. 240-246.
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AU - Fujii, Hidetosi

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AB - Al-coated carbon nanofiber(CNF) reinforced aluminum matrix composites were fabricated by pressureless infiltration at 850°C in the presence of N2 into a CNF-Mg-Al preform. Aluminum coating on the CNF was obtained by Chemical Vapor Deposition(CVD) in order to improve the wettability and aluminum coating layer was about 10 nm on the CNF surface at 500°C and for holding time of 48 h. The effects of the preform fabrication conditions, such as pressure, temperature, and Mg contents on the infiltration were discussed. As the pressure was a 200 kPa at room temperature, the infiltration depth was largest. Moreover, Mg content was about 30% to obtain the largest infiltration depth. The ratio of non-coated to coated CNF was 0.5 to show the largest infiltration depth and the hardness and modulus of that composite including Al coated CNF were about Hv240 and 85 GPa, respectively.

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