Stress-induced preferential alignment of basal planes in phenolic-based carbon-carbon composite

Chien-Ping Ju, S. Watahiki, S. Takano

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Using scanning transmission electron microscopy/microdiffraction as well as high-resolution electron microscopy techniques, this study provides direct evidence of stress-induced preferential alignment of basal planes in the matrix of a PAN-phenolic-based carbon-carbon composite. The results indicate that this preferential alignment occurs mostly in the stressed matrix during heating, including among fibers and surrounding matrix micropores. The basal planes in the stressed regions are aligned parallel to either the fiber axis or the micropore wall. Microdiffraction shows that atomic ordering in these regions is two-dimensional (with turbostratic structure). It is suggested that a compressive stress during heating, which is induced either by matrix/fiber expansion or by volatilized gases entrapped in micropores, is critical in order for the basal planes to be preferentially aligned. This argument is supported by the results of Kamiya and Inagaki and of Kimura et al., but is not in agreement with the suggestion made by Hishiyama et al.

Original languageEnglish
Pages (from-to)150-155
Number of pages6
JournalMaterials Chemistry and Physics
Volume36
Issue number1-2
DOIs
Publication statusPublished - 1993 Jan 1

Fingerprint

carbon-carbon composites
Carbon carbon composites
alignment
Fibers
matrices
fibers
Heating
High resolution electron microscopy
Compressive stress
heating
polyacrylonitrile
Gases
Transmission electron microscopy
suggestion
electron microscopy
Scanning electron microscopy
transmission electron microscopy
scanning electron microscopy
expansion
high resolution

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

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Stress-induced preferential alignment of basal planes in phenolic-based carbon-carbon composite. / Ju, Chien-Ping; Watahiki, S.; Takano, S.

In: Materials Chemistry and Physics, Vol. 36, No. 1-2, 01.01.1993, p. 150-155.

Research output: Contribution to journalArticle

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