Modulating the thermophysical properties of diamond/SiC composites via controlling the diamond graphitization

Wang Xulei; Li Yikang; Huang Yabo; Zhang Yalong; Wang Pei; Guan Li; He Xinbo; Liu Rongjun; Qu Xuanhui; Wu Xiaoge

doi:10.1007/s42823-024-00767-5

Modulating the thermophysical properties of diamond/SiC composites via controlling the diamond graphitization

Carbon Letters
Abbr : Carbon Lett.
2024, 34(9), pp.2377~2388
DOI : 10.1007/s42823-024-00767-5
Publisher : Korean Carbon Society
Research Area : Natural Science > Natural Science General > Other Natural Sciences General
Received : March 13, 2024
Accepted : May 28, 2024
Published : December 5, 2024

Wang Xulei ¹, Li Yikang ¹, Huang Yabo ¹, Zhang Yalong ¹, Wang Pei ¹, Guan Li ¹, He Xinbo ², Liu Rongjun ³, Qu Xuanhui ², Wu Xiaoge ⁴

¹Zhengzhou University of Aeronautics
²Institute for Advanced Materials and Technology, University of Science and Technology Beijing
³College of Aerospace and Materials Engineering, National University of Defense Technology
⁴School of Materials Science and Engineering, Zhengzhou University of Aeronautics

Accredited

ABSTRACT

Diamond/SiC composites were prepared by vacuum silica vapor-phase infiltration of in situ silicon–carbon reaction, and the thermophysical properties of the composites were modulated by controlling diamond graphitizing. The effects of diamond surface state and vacuum silicon infiltration temperature on diamond graphitization were investigated, and the micro-morphology, phase composition, and properties of the composites were observed and characterized. The results show that diamond pretreatment can reduce the probability of graphitizing; when the penetration temperature is greater than 1600 °C, the diamond undergoes a graphitizing phase transition and the micro-morphology presents a lamellar shape. The thermal conductivity, density, and flexural strength of the composites increased and then decreased with the increase of penetration temperature in the experimentally designed range of penetration temperature. The variation of thermal expansion coefficients of composites prepared with different penetration temperatures ranged from 0.8 to 3.0 ppm/K when the temperature was between 50 and 400 °C.

KEYWORDS

Vacuum silicon vapor-phase infiltration Diamond/SiC composites Graphitization regulation Thermophysical properties

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Carbon Letters 2024 KCI Impact Factor : 0.95 KCI-WoS Impact Factor : 4.74

Modulating the thermophysical properties of diamond/SiC composites via controlling the diamond graphitization

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Citation status

This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2025-07-17)

Total Citation Counts(KCI+WOS) (3) This is the number of times that the duplicate count has been removed by comparing the citation list of WoS and KCI.

* References for papers published after 2024 are currently being built.

Carbon Letters 2024 KCI Impact Factor : 0.95 KCI-WoS Impact Factor : 4.74

Modulating the thermophysical properties of diamond/SiC composites via controlling the diamond graphitization

ABSTRACT

KEYWORDS

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WoS Citation Counts (3) This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2025-07-17)

Total Citation Counts(KCI+WOS) (3) This is the number of times that the duplicate count has been removed by comparing the citation list of WoS and KCI.

REFERENCES (16) * References for papers published after 2024 are currently being built.

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This is the result of checking the information with the same ISSN, publication year, volume, and start page between the WoS and the KCI journals. (as of 2025-07-17)

* References for papers published after 2024 are currently being built.