Pitch-based carbon fiber of high compressive strength prepared from synthetic isotropic pitch containing mesophase spheres

Fumitaka Watanabe, Sumihito Ishida, Yozo Korai, Isao Mochida, Isao Kato, Yukio Sakai, Makoto Kamatsu

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

Two pitches containing mesophase spheres were prepared from a synthetic isotropic naphthalene pitch at 360°C and 375°C so as to contain spheres of different diameters. Both pitches were smoothly spun into thin fibers, which were converted into carbon fibers through stabilization, carbonization and graphitization. The fiber from the pitch with finer spheres exhibited a higher compressive strength, which reflected smaller microdomains, smaller, and thinner fibrils, being different from both isotropic and anisotropic pitch fibers. The isotropic fraction of the pitch appears to give areas of smaller microdomains. The fiber exhibited intermediate values in graphitic parameters between those of isotropic and anisotropic pitch-based fibers.

Original languageEnglish
Pages (from-to)961-967
Number of pages7
JournalCarbon
Volume37
Issue number6
DOIs
Publication statusPublished - 1999

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)

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