Topological changes of vapor grown carbon fibers during heat treatment

被引：15

作者：

Kim, YA

Matusita, T

Hayashi, T

Endo, M

Dresselhaus, MS

机构：

[1] Shinshu Univ 4 17 1, Fac Engn, Nagano 3808553, Japan

[2] MIT, Cambridge, MA 02139 USA

来源：

CARBON | 2001年 / 39卷 / 11期

基金：

日本学术振兴会;

关键词：

carbon fibers; chemical vapor deposition; scanning tunneling microscopy (STM); atomic force microscopy (AFM);

D O I：

10.1016/S0008-6223(00)00307-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The topological change of the surface of vapor-grown carbon fibers (VGCFs) as a function of heat treatment temperature was observed using FE-SEM, STM and AFM. The morphological change at the micrometre scale from a smooth surface, to a rope-like structure, and to a grain-Eke structure was closely related with the volume change, especially due to the annular fiber form. The extent to which the micro-domain grows by heat treatment is limited by the diameter of the fiber. The appearance of a Moire pattern provided evidence for the graphitization process from turbostratic to three-dimensional graphite. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：1747 / 1752

页数：6

共 28 条

[1] Atomic scale STM study of pitch-based carbon fibers: Influence of mesophase content and heat treatment temperature [J].