@article{ART003208687},
author={Yuan-jian Tong},
title={Effect of multiple stretching on microstructure and mechanical properties of PAN-based carbon fibers},
journal={Carbon Letters},
issn={1976-4251},
year={2025},
volume={35},
number={2},
pages={907-916}
TY - JOUR
AU - Yuan-jian Tong
TI - Effect of multiple stretching on microstructure and mechanical properties of PAN-based carbon fibers
JO - Carbon Letters
PY - 2025
VL - 35
IS - 2
PB - Korean Carbon Society
SP - 907
EP - 916
SN - 1976-4251
AB - To further increase the mechanical properties of polyacrylonitrile-based carbon fibers, a multiple stretching technique was applied. Carbon fibers were multiple stretched at 2200 °C and characterizations such as SEM, Raman, XRD, and TEM were used to investigate the evolution of microstructure of carbon fibers. It was found that the grooves on the surface of carbon fibers along the fiber axis direction became more obvious and the cross-section of fibers were twisted from nearly circular to elliptical after multiple stretching. Growth and slippage of graphite microcrystals along the fiber axis direction resulted decrease in disordered structure and defects in the carbon fibers and increase in the degree of graphitization. The multiple stretching effectively enhanced the length-to-width ratio of microcrystals. An increase of 75 GPa in tensile modulus and a retention rate of 0.95 in tensile strength were realized for carbon fibers multiple stretched at 2200 °C.
KW - PAN-based carbon fibers Multiple stretching Microstructure Mechanical properties
DO -
UR -
ER -
Yuan-jian Tong. (2025). Effect of multiple stretching on microstructure and mechanical properties of PAN-based carbon fibers. Carbon Letters, 35(2), 907-916.
Yuan-jian Tong. 2025, "Effect of multiple stretching on microstructure and mechanical properties of PAN-based carbon fibers", Carbon Letters, vol.35, no.2 pp.907-916.
Yuan-jian Tong "Effect of multiple stretching on microstructure and mechanical properties of PAN-based carbon fibers" Carbon Letters 35.2 pp.907-916 (2025) : 907.
Yuan-jian Tong. Effect of multiple stretching on microstructure and mechanical properties of PAN-based carbon fibers. 2025; 35(2), 907-916.
Yuan-jian Tong. "Effect of multiple stretching on microstructure and mechanical properties of PAN-based carbon fibers" Carbon Letters 35, no.2 (2025) : 907-916.
Yuan-jian Tong. Effect of multiple stretching on microstructure and mechanical properties of PAN-based carbon fibers. Carbon Letters, 35(2), 907-916.
Yuan-jian Tong. Effect of multiple stretching on microstructure and mechanical properties of PAN-based carbon fibers. Carbon Letters. 2025; 35(2) 907-916.
Yuan-jian Tong. Effect of multiple stretching on microstructure and mechanical properties of PAN-based carbon fibers. 2025; 35(2), 907-916.
Yuan-jian Tong. "Effect of multiple stretching on microstructure and mechanical properties of PAN-based carbon fibers" Carbon Letters 35, no.2 (2025) : 907-916.
