Squeeze infiltration processing of nickel coated carbon fiber reinforced Al-2014 composite

Pradeep K. Rohatgi, Vindhya Tiwari, Nikhil Gupta

Research output: Contribution to journalArticle

Abstract

Ni-coated fibers are widely used to synthesize carbon fiber reinforces Al based composites. It is observed that during the pressure infiltration process, significant amount of damage takes place in the nickel (Ni) coating due to a difference in the thermal expansion coefficients of fibers and Ni-coating. A modified squeeze infiltration set up is studied in the present work to minimize the damage to the Ni-coating during the infiltration process. This process resulted in significant improvement in retention of the Ni-coating compared to the unmodified process. The solidification pattern in the matrix was established by Energy Dispersive Spectroscopic analysis, which suggests that solidification of primary α-Al started in the interfiber region. The Vickers hardness values for the unreinforced portion of the sample, the matrix regions within the fiber tows and at the fiber matrix interface were found to be 55, 72 and 87, respectively.

Original languageEnglish (US)
Pages (from-to)7232-7239
Number of pages8
JournalJournal of Materials Science
Volume41
Issue number21
DOIs
StatePublished - Nov 2006

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nickel coatings
Nickel coatings
infiltration
carbon fibers
Nickel
Infiltration
Carbon fibers
nickel
composite materials
Fibers
Composite materials
Processing
solidification
fibers
Solidification
fiber-matrix interfaces
damage
Spectroscopic analysis
Vickers hardness
spectroscopic analysis

ASJC Scopus subject areas

  • Materials Science(all)
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Squeeze infiltration processing of nickel coated carbon fiber reinforced Al-2014 composite. / Rohatgi, Pradeep K.; Tiwari, Vindhya; Gupta, Nikhil.

In: Journal of Materials Science, Vol. 41, No. 21, 11.2006, p. 7232-7239.

Research output: Contribution to journalArticle

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