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Comparative analysis of oxidation resistance at 1700 ℃ for HfB2-SiC-MoSi2 coatings on curved C/C composites prepared via gaseous and liquid silicon infiltration
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Shubo Zhang, Zhiqiang Liu, Shuo Zhang, Xiaoxuan Su, Qiangang Fu*
Transactions of Materials Research | 2025, 1(1) : 100011
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Transactions of Materials Research | 2025, 1(1): 100011
• INORGANIC MATERIALS •
Comparative analysis of oxidation resistance at 1700 ℃ for HfB2-SiC-MoSi2 coatings on curved C/C composites prepared via gaseous and liquid silicon infiltration
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Shubo Zhang, Zhiqiang Liu, Shuo Zhang, Xiaoxuan Su, Qiangang Fu*
Affiliations
  • Shanxi Key Laboratory of Fiber Reinforced Light Composite Materials, Science and Technology on Thermostructural Composite Materials Laboratory, Northwestern Polytechnical University, Xi'an, 710072, China
Published: 2025-04-08 doi: 10.1016/j.tramat.2025.100011
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To investigate the differences in densification effects and oxidation resistance of curved samples subjected to gaseous and liquid Si infiltration, HfB2-SiC-MoSi2-Si/SiC-Si coated C/C composites are prepared using gaseous and liquid Si infiltration (G-HSM and L-HSM), respectively. The mass change rates of G-HSM and L-HSM after thermal shock from 1700 ℃ to room temperature are -2.52 % and 0.07 %. After isothermal oxidation at 1700 ℃ for 200 h, the mass change rate of L-HSM is -0.12 %, while that of G-HSM reaches -0.60 % after 124 h. The high content of HfB2 and MoSi2 in L-HSM improves the coating stability, which effectively avoids droplet shedding. In addition, the lower roughness and narrower original cracks reduce oxygen adsorption sites and diffusion channels of L-HSM during oxidation. Thus, L-HSM exhibits better thermal shock resistance and oxidation resistance than G-HSM. This study provides a strategy for the coating design of curved components above 1700 ℃.

Silicon infiltration  /  Curved C/C composites  /  Oxidation  /  Coating
Shubo Zhang, Zhiqiang Liu, Shuo Zhang, Xiaoxuan Su, Qiangang Fu. Comparative analysis of oxidation resistance at 1700 ℃ for HfB2-SiC-MoSi2 coatings on curved C/C composites prepared via gaseous and liquid silicon infiltration[J]. Transactions of Materials Research, 2025 , 1 (1) : 100011 - . DOI: 10.1016/j.tramat.2025.100011
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  • National Key Research and Development Program of China(2021YFA0715800)
  • Science Center for Gas Turbine Project(P2021-A-IV-003-001)
  • National Natural Science Foundation of China(52125203; 52432003)
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Year 2025 volume 1 Issue 1
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Article Info
doi: 10.1016/j.tramat.2025.100011
  • Receive Date：2025-03-23
  • Online Date：2026-06-10
  • Published：2025-04-08
Article Data
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History
  • Received：2025-03-23
  • Revised：2025-04-06
  • Accepted：2025-04-06
Funding
National Key Research and Development Program of China(2021YFA0715800)
Science Center for Gas Turbine Project(P2021-A-IV-003-001)
National Natural Science Foundation of China(52125203; 52432003)
Affiliations
    Shanxi Key Laboratory of Fiber Reinforced Light Composite Materials, Science and Technology on Thermostructural Composite Materials Laboratory, Northwestern Polytechnical University, Xi'an, 710072, China

Corresponding:

* E-mail address: (Q. Fu).
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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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