@article{ART003062926},
author={Kim Jung-Jin and Lee Sang-Hye and Roh, Jae-Seung},
title={Effect of heat-treatment temperature and residence time on microstructure and crystallinity of mesophase in coal tar pitch},
journal={Carbon Letters},
issn={1976-4251},
year={2024},
volume={34},
number={2},
pages={815-825},
doi={10.1007/s42823-024-00690-9}
TY - JOUR
AU - Kim Jung-Jin
AU - Lee Sang-Hye
AU - Roh, Jae-Seung
TI - Effect of heat-treatment temperature and residence time on microstructure and crystallinity of mesophase in coal tar pitch
JO - Carbon Letters
PY - 2024
VL - 34
IS - 2
PB - Korean Carbon Society
SP - 815
EP - 825
SN - 1976-4251
AB - This study aimed to identify and analyze the effects of both isothermal heat treatment temperature and residence time on the formation of mesophase in coal tar pitch, especially with respect to its microstructural and crystalline evolution. The formation and growth of mesophase resulted in a decrease in d002 and an increase in Lc, and the degree of such variation was larger when the isothermal heat treatment temperature was higher. In isothermally heat-treated pitch, two distinct domains were observed: less developed crystalline carbon (LDCC) and more developed crystalline carbon (MDCC). When pitch was isothermally heat-treated at 375 °C for 20 h, d002 was 4.015 Å in the LDCC and 3.515 Å in the MDCC. Higher isothermal heat-treatment temperatures accelerated the formation, growth, and coalescence of mesophase. Indeed, in the pitch specimen isothermally heat-treated at 425 °C for 20 h, d002 was 3.809 Å in the LDCC and 3.471 Å in the MDCC. The evolution of mesophase was characterized by pronounced inflection points in d002 curves. It was found that the emergence of these inflection points coincided with pronounced changes in the microstructure of mesophase. This finding confirmed the relationship between inflection points in d002 and the microstructure of mesophase.
KW - Coal tar pitch Mesophase Microstructure Crystallinity Isothermal heat treatment
DO - 10.1007/s42823-024-00690-9
ER -
Kim Jung-Jin, Lee Sang-Hye and Roh, Jae-Seung. (2024). Effect of heat-treatment temperature and residence time on microstructure and crystallinity of mesophase in coal tar pitch. Carbon Letters, 34(2), 815-825.
Kim Jung-Jin, Lee Sang-Hye and Roh, Jae-Seung. 2024, "Effect of heat-treatment temperature and residence time on microstructure and crystallinity of mesophase in coal tar pitch", Carbon Letters, vol.34, no.2 pp.815-825. Available from: doi:10.1007/s42823-024-00690-9
Kim Jung-Jin, Lee Sang-Hye, Roh, Jae-Seung "Effect of heat-treatment temperature and residence time on microstructure and crystallinity of mesophase in coal tar pitch" Carbon Letters 34.2 pp.815-825 (2024) : 815.
Kim Jung-Jin, Lee Sang-Hye, Roh, Jae-Seung. Effect of heat-treatment temperature and residence time on microstructure and crystallinity of mesophase in coal tar pitch. 2024; 34(2), 815-825. Available from: doi:10.1007/s42823-024-00690-9
Kim Jung-Jin, Lee Sang-Hye and Roh, Jae-Seung. "Effect of heat-treatment temperature and residence time on microstructure and crystallinity of mesophase in coal tar pitch" Carbon Letters 34, no.2 (2024) : 815-825.doi: 10.1007/s42823-024-00690-9
Kim Jung-Jin; Lee Sang-Hye; Roh, Jae-Seung. Effect of heat-treatment temperature and residence time on microstructure and crystallinity of mesophase in coal tar pitch. Carbon Letters, 34(2), 815-825. doi: 10.1007/s42823-024-00690-9
Kim Jung-Jin; Lee Sang-Hye; Roh, Jae-Seung. Effect of heat-treatment temperature and residence time on microstructure and crystallinity of mesophase in coal tar pitch. Carbon Letters. 2024; 34(2) 815-825. doi: 10.1007/s42823-024-00690-9
Kim Jung-Jin, Lee Sang-Hye, Roh, Jae-Seung. Effect of heat-treatment temperature and residence time on microstructure and crystallinity of mesophase in coal tar pitch. 2024; 34(2), 815-825. Available from: doi:10.1007/s42823-024-00690-9
Kim Jung-Jin, Lee Sang-Hye and Roh, Jae-Seung. "Effect of heat-treatment temperature and residence time on microstructure and crystallinity of mesophase in coal tar pitch" Carbon Letters 34, no.2 (2024) : 815-825.doi: 10.1007/s42823-024-00690-9
