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Oxidation behaviors of mesophase pitch-based carbon fibers
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Huang WU1, 2, Huafeng QUAN1, Shipeng ZHU3, Chong YE1, 2, Zhihai FENG4
Journal of Materials Engineering | 2026, 54(8) : 19 - 30
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Journal of Materials Engineering | 2026, 54(8): 19-30
Oxidation behaviors of mesophase pitch-based carbon fibers
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Huang WU1, 2, Huafeng QUAN1, Shipeng ZHU3, Chong YE1, 2, Zhihai FENG4
Affiliations
  • 1.College of Materials Science and Engineering，Hunan Province Key Laboratory for Advanced Carbon Materials and Applied Technology，Hunan University，Changsha 410082，China
  • 2.Hunan Province Engineering Research Center for High Performance Pitch-based Carbon Materials，Hunan Toyi Carbon Material Technology Co. ，Ltd. ，Changsha 410000，China
  • 3.Aerospace Research Institute of Materials and Processing Technology，Beijing 100076，China
  • 4.China Academy of Launch Vehicle Technology，Beijing 100076，China
Published: 2026-08-20 doi: 10.11868/j.issn.1001-4381.2026.000286
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Mesophase pitch-based carbon fibers （MPCF） possess excellent properties， such as high modulus and high thermal conductivity， making them key strategic materials for national defense security and advanced equipment development. However， their oxidation behavior in high-temperature aerobic environments remains poorly understood. This study investigates the oxidation behaviors and the evolution of mechanical and thermal properties of two types of MPCF， namely split-structured （CF-A） and round-structured （CF-B）， in both carbonized （1600 ℃） and graphitized （3000 ℃） states. The results show that CF-A-1600 exhibits preferential core oxidation during the 600 ℃ oxidation process， leading to a tensile strength retention of only 34.93%， which is lower than that of CF-B-1600 （51.79%）. Conversely， the CF-A-3000 achieves tensile strength retention of 79.64% and thermal conductivity retention of 94.36%， respectively， higher than those of CF-B-3000 （77.46% and 90.93%）. For carbonized MPCF， the oxidation behavior is dominated by diffusion-controlled reactions， where structural morphology plays a decisive role， and CF-B fibers exhibit superior oxidation resistance. For graphitized MPCF， oxidation behavior is governed by chemical-controlled reactions， in which intrinsic crystallite activity becomes dominant. For comparison， CF-A fibers show superior performance due to their better-developed crystallites and consequently higher oxidation activation energy. This study reveals the coupled mechanism between structural morphology and intrinsic crystallite activity of MPCF， providing a theoretical reference for reliability assessment and material optimization design of MPCF and their composites in extreme thermal service conditions.

mesophase pitch-based carbon fiber  /  microstructure  /  oxidation behavior  /  thermal conductivity  /  tensile strength
吴晃, 全华锋, 朱世鹏, 叶崇, 冯志海. 中间相沥青碳纤维的氧化行为. 材料工程, 2026 , 54 (8) : 19 -30 . DOI: 10.11868/j.issn.1001-4381.2026.000286
Huang WU, Huafeng QUAN, Shipeng ZHU, Chong YE, Zhihai FENG. Oxidation behaviors of mesophase pitch-based carbon fibers[J]. Journal of Materials Engineering, 2026 , 54 (8) : 19 -30 . DOI: 10.11868/j.issn.1001-4381.2026.000286
Appendix
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Year 2026 volume 54 Issue 8
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Article Info
doi: 10.11868/j.issn.1001-4381.2026.000286
  • Receive Date：2026-05-11
  • Online Date：2026-10-28
  • Published：2026-08-20
Article Data
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History
  • Received：2026-05-11
  • Accepted：2026-06-09
Funding
Affiliations
    1.College of Materials Science and Engineering，Hunan Province Key Laboratory for Advanced Carbon Materials and Applied Technology，Hunan University，Changsha 410082，China
    2.Hunan Province Engineering Research Center for High Performance Pitch-based Carbon Materials，Hunan Toyi Carbon Material Technology Co. ，Ltd. ，Changsha 410000，China
    3.Aerospace Research Institute of Materials and Processing Technology，Beijing 100076，China
    4.China Academy of Launch Vehicle Technology，Beijing 100076，China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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