Effect of Post-Heat-Treatment on Various Characteristics of Commercial Pitch-Based Carbon Fibers

• Journal title : Carbon letters
• Volume 8, Issue 2,  2007, pp.127-133
• Publisher : Korean Carbon Society
• DOI : 10.5714/CL.2007.8.2.127
Title & Authors
Effect of Post-Heat-Treatment on Various Characteristics of Commercial Pitch-Based Carbon Fibers
Yoon, Sung-Bong; Cho, Chae-Wook; Cho, Dong-Hwan; Park, Jong-Kyoo; Lee, Jae-Yeol;

Abstract
In this study, commercially available pitch-based carbon fibers of general grade were post-heat-treated using a boxtype high temperature furnace at $\small{1800^{\circ}C}$, $\small{2000^{\circ}}$, $\small{2200^{\circ}C}$, and $\small{2400^{\circ}C}$, respectively. The fundamental characteristics of each heat-treated carbon fibers were investigated in terms of chemical composition, morphology, thermal stability, X-ray diffraction, single filament tensile test, and electrical resistivity. The result showed that the fiber properties were significantly influenced by the post-heat-treatment, indicating the greater effect with increasing treatment temperature. The carbon contents, thermal stability, and tensile properties of the carbon fibers used here were further increased by the post-heat-treatment, whereas the d-spacing between graphene layers and the electrical resistivity were reduced with increasing post-heat-treatment temperature.
Keywords
Pitch-based carbon fiber;Post-heat-treatment;Characteristics;
Language
Korean
Cited by
1.
Effect of additional heat-treatment temperature on chemical, microstructural, mechanical, and electrical properties of commercial PAN-based carbon fibers, Carbon letters, 2011, 12, 4, 223