Fractal analysis of surfaces of advanced reinforcing fibers by atomic force microscopy

Yu A. Dzenis, D. H. Reneker, V. V. Tsukruk, R. Patil

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Fractal analysis of surfaces of several commercial and experimental reinforcing fibers is reported. Atomic force microscope images of fiber surfaces demonstrate the self-affinity of surface topog- raphy over a range of scales. The roughness of the fiber surfaces was calculated after the cylindrical curvature was removed by subtracting a fitted second order polynomial. Fractal dimensions of surfaces were evaluated. The fractal dimension of graphite T40R fiber was 2.09. The fractal dimension of Kevlar® 149 fiber was 2.37. Fractal dimensions of high temperature polyimide BPDA-PFMB fibers decreased from 2.52 for as spun, undrawn fibers to 2.18 for a fiber with a draw ratio 8. The fractal nature of the fiber surfaces implies that the interphase regions also have fractal morphology. Study of the nature of a fractal interface is expected to lead to new insight into the transfer of stress between the fiber and the matrix.

Original languageEnglish (US)
Pages (from-to)307-319
Number of pages13
JournalComposite Interfaces
Volume2
Issue number4
DOIs
StatePublished - Jan 1 1994

Fingerprint

reinforcing fibers
Fractals
Atomic force microscopy
fractals
atomic force microscopy
fibers
Fibers
Fractal dimension
Kevlar (trademark)
Graphite fibers
Surface topography
polyimides
Polyimides
affinity
topography
polynomials
Microscopes
roughness
graphite
Surface roughness

Keywords

  • Advanced reinforcing fibers
  • Atomic force microscopy
  • Fractal dimension
  • Fractal interfaces in composite
  • Multiple image variography
  • Surface morphology

ASJC Scopus subject areas

  • Ceramics and Composites
  • Physics and Astronomy(all)
  • Surfaces, Coatings and Films

Cite this

Fractal analysis of surfaces of advanced reinforcing fibers by atomic force microscopy. / Dzenis, Yu A.; Reneker, D. H.; Tsukruk, V. V.; Patil, R.

In: Composite Interfaces, Vol. 2, No. 4, 01.01.1994, p. 307-319.

Research output: Contribution to journalArticle

Dzenis, Yu A. ; Reneker, D. H. ; Tsukruk, V. V. ; Patil, R. / Fractal analysis of surfaces of advanced reinforcing fibers by atomic force microscopy. In: Composite Interfaces. 1994 ; Vol. 2, No. 4. pp. 307-319.
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