@article{ART003274528},
author={Zhang Yibo and Tsang Derek and Liao Qian and Qiao Xu and Chauhan Vinay and Ma Xianfeng and Wang Yuzhou},
title={A comparative study of microstructures and thermal conductivities of nuclear graphite},
journal={Carbon Letters},
issn={1976-4251},
year={2025},
volume={35},
number={6},
pages={2775-2790},
doi={10.1007/s42823-025-00954-y}
TY - JOUR
AU - Zhang Yibo
AU - Tsang Derek
AU - Liao Qian
AU - Qiao Xu
AU - Chauhan Vinay
AU - Ma Xianfeng
AU - Wang Yuzhou
TI - A comparative study of microstructures and thermal conductivities of nuclear graphite
JO - Carbon Letters
PY - 2025
VL - 35
IS - 6
PB - Korean Carbon Society
SP - 2775
EP - 2790
SN - 1976-4251
AB - Thermal property represents a critical metric when evaluating the performance of next generation nuclear graphite. Despite the extensive measurement data available, a detailed investigation into the influence of microstructure on graphite’s thermal conductivity remains underexplored. In this work, taking advantage of the distinct microstructures between different graphite grades, a comparative study of four graphite grades was conducted to elucidate the structure–property relationship. The microstructures of graphite were characterized by Raman spectroscopy and X-ray diffraction techniques, demonstrating specimen preparation induced damage and annealing induced restoration. Thermal properties were investigated across multiple scales using laser flash analysis and photothermal radiometry. The results indicate that despite similar densities, thermal conductivity varies significantly between different grades and correlates positively with crystallite sizes. By interpolating an infinitely large crystallite and removing the impact of macroscale porosity, an upper bound for the thermal conductivity of isotropic defect-free nuclear graphite has been established.
KW - Nuclear graphite;Thermal conductivity;Raman spectroscopy;Crystallite size
DO - 10.1007/s42823-025-00954-y
ER -
Zhang Yibo, Tsang Derek, Liao Qian, Qiao Xu, Chauhan Vinay, Ma Xianfeng and Wang Yuzhou. (2025). A comparative study of microstructures and thermal conductivities of nuclear graphite. Carbon Letters, 35(6), 2775-2790.
Zhang Yibo, Tsang Derek, Liao Qian, Qiao Xu, Chauhan Vinay, Ma Xianfeng and Wang Yuzhou. 2025, "A comparative study of microstructures and thermal conductivities of nuclear graphite", Carbon Letters, vol.35, no.6 pp.2775-2790. Available from: doi:10.1007/s42823-025-00954-y
Zhang Yibo, Tsang Derek, Liao Qian, Qiao Xu, Chauhan Vinay, Ma Xianfeng, Wang Yuzhou "A comparative study of microstructures and thermal conductivities of nuclear graphite" Carbon Letters 35.6 pp.2775-2790 (2025) : 2775.
Zhang Yibo, Tsang Derek, Liao Qian, Qiao Xu, Chauhan Vinay, Ma Xianfeng, Wang Yuzhou. A comparative study of microstructures and thermal conductivities of nuclear graphite. 2025; 35(6), 2775-2790. Available from: doi:10.1007/s42823-025-00954-y
Zhang Yibo, Tsang Derek, Liao Qian, Qiao Xu, Chauhan Vinay, Ma Xianfeng and Wang Yuzhou. "A comparative study of microstructures and thermal conductivities of nuclear graphite" Carbon Letters 35, no.6 (2025) : 2775-2790.doi: 10.1007/s42823-025-00954-y
Zhang Yibo; Tsang Derek; Liao Qian; Qiao Xu; Chauhan Vinay; Ma Xianfeng; Wang Yuzhou. A comparative study of microstructures and thermal conductivities of nuclear graphite. Carbon Letters, 35(6), 2775-2790. doi: 10.1007/s42823-025-00954-y
Zhang Yibo; Tsang Derek; Liao Qian; Qiao Xu; Chauhan Vinay; Ma Xianfeng; Wang Yuzhou. A comparative study of microstructures and thermal conductivities of nuclear graphite. Carbon Letters. 2025; 35(6) 2775-2790. doi: 10.1007/s42823-025-00954-y
Zhang Yibo, Tsang Derek, Liao Qian, Qiao Xu, Chauhan Vinay, Ma Xianfeng, Wang Yuzhou. A comparative study of microstructures and thermal conductivities of nuclear graphite. 2025; 35(6), 2775-2790. Available from: doi:10.1007/s42823-025-00954-y
Zhang Yibo, Tsang Derek, Liao Qian, Qiao Xu, Chauhan Vinay, Ma Xianfeng and Wang Yuzhou. "A comparative study of microstructures and thermal conductivities of nuclear graphite" Carbon Letters 35, no.6 (2025) : 2775-2790.doi: 10.1007/s42823-025-00954-y
