Axial nano-scale microstructures in graphitized fibers inherited from liquid crystal mesophase pitch

Seong-Ho Yoon, Yozo Korai, Isao Mochida, Kiyoshi Yokogawa, Seiji Fukuyama, Masamitsu Yoshimura

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

Nano-scale structures of a mesophase puch based carbon fiber were characterized using a high-resolution scanning electron microscope (HR-SEM) and a scanning tunneling microscope (STM). Fibril was found to be sectioned by a number of pleat units, being aligned parallel along the fiber axis. The periodical size. thickness and height of pleat unit was estimated as 30-60 nm, 20-30 nm and around 7 nm, respectively. In a pleat, graphitic units of 30 60 nm long and 2-4 nm wide run principally perpendicular to the axis. The basal plane of graphite was observed at the largest magnification. Such a series of nano-structures should be related intimately to the performance of the fibers. The formation mechanism of such series of nano-structural units is discussed in relation to the nano-structure of the liquid crystal mesophase pitch and ils deformation during the spinning.

Original languageEnglish
Pages (from-to)83-88
Number of pages6
JournalCarbon
Volume34
Issue number1
DOIs
Publication statusPublished - 1996
Externally publishedYes

Fingerprint

Liquid Crystals
Liquid crystals
Scanning
Microstructure
Graphite
Fibers
Carbon fibers
Microscopes
Electron microscopes
carbon fiber

All Science Journal Classification (ASJC) codes

  • Materials Chemistry

Cite this

Axial nano-scale microstructures in graphitized fibers inherited from liquid crystal mesophase pitch. / Yoon, Seong-Ho; Korai, Yozo; Mochida, Isao; Yokogawa, Kiyoshi; Fukuyama, Seiji; Yoshimura, Masamitsu.

In: Carbon, Vol. 34, No. 1, 1996, p. 83-88.

Research output: Contribution to journalArticle

Yoon, Seong-Ho ; Korai, Yozo ; Mochida, Isao ; Yokogawa, Kiyoshi ; Fukuyama, Seiji ; Yoshimura, Masamitsu. / Axial nano-scale microstructures in graphitized fibers inherited from liquid crystal mesophase pitch. In: Carbon. 1996 ; Vol. 34, No. 1. pp. 83-88.
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AU - Fukuyama, Seiji

AU - Yoshimura, Masamitsu

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