APPLICATION AND MANUFACTURING TECHNOLOGY OF DIAMOND MATERIALS IN TRANSPORTATION FIELD

Xiaojing Li; Shutong Gong; Min Xu; Metodi Stefanov Atanasov; Jie Liu; Xiaoxue Wu; Yong Liang Gao

Научный доклад ID 2758 : 2025/3

APPLICATION AND MANUFACTURING TECHNOLOGY OF DIAMOND MATERIALS IN TRANSPORTATION FIELD

Xiaojing Li, Shutong Gong, Min Xu, Metodi Stefanov Atanasov, Jie Liu, Xiaoxue Wu, Yong Liang Gao

With its extreme physical properties (hardness 100 GPa, thermal conductivity 2000 W/(m·K)), diamond material is reconstructing the modern transportation technology system. In the field of high-speed railroad: brazed diamond grinding wheels process track curved surfaces with 0.1 mm precision, with a life span of 2-3 times that of traditional tools, nano-diamond-coated bearings reduce the wear rate by 50%, and the maintenance cycle is extended to 1.2 million kilometers, diamond-reinforced composite brake pads shorten the braking distance by 12% in 300 km/h braking test, and the life span is increased by 50% to 120,000 kilometers. Among the forward-looking technologies, the BJ3DP (Binder Jet 3D Printing) diamond/copper composite developed has been applied to the thermal management module of traction converter by increasing the thermal conductivity to 920 W/m-K through tungsten metallization interface and reducing the cost by 45%. This paper systematically analyzes the process characteristics of the four major diamond synthesis technologies (HPHT/MPCVD/HFCVD/DC ARC CVD), and looks forward to their industrialization paths in scenarios such as magnetic levitation trains and new energy vehicles.

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Diamond Superhard tool machining Transportation Applications Diamond synthesis method.Diamond Superhard tool machining Transportation Applications Diamond synthesis method.Xiaojing Li Shutong Gong Min Xu Metodi Stefanov Atanasov Jie Liu Xiaoxue Wu Yong Liang Gao

BIBLIOGRAPHY

[1] Liu Y, Wang M , Liu L ,et al.Effect of the interfacial microstructure on hardness of multi-layer diamond coatings

[J].Surface & Coatings Technology, 2023.

[2] Pu, Y. Z., Xiao, B., Gao, R., et al., Research on brazed diamond grinding wheels for rail grinding

[J]. Diamond & Abrasives Engineering, 2022, 42(03): 325-331.（in Chinese）

[3] Xiao, B., Wang, B., Zhang, Z. Y.,et al.(2012). Topography optimization method for brazed diamond grinding wheels of high-speed rail track plates. Invention patent of China (Application No. CN2012102469170, Publication No. CN102773808A). Nanjing University of Aeronautics and Astronautics.

[4] Zheng Mingliang, Li Wenxia, Yang Deyun, etc. Wear reliability of brazed diamond grinding disc based on stochastic process

[ J ].Welding, 2021 ( 09 ) : 39-43 63.（in Chinese）

[5] Zhang Shijun. Application technology of cutting tools for automobile parts processing

[ J ].Autotechnician, 2022 ( 06 ) : 23-31.（in Chinese）

[6] Hu Yuanzhong, Ding Jianwu. Application of PCD tools in automobile parts processing

[ J ].Tool technology, 2012,46 ( 07 ) : 47-50.（in Chinese）

[7] Zhu Xinyu, Guo Yu, Pang Chengyu, etc. Phase structure analysis of diamond / nano-alumina ceramic composites synthesized at high temperature and high pressure

[J].Superhard material engineering, 2024,36 (03) : 1-8.（in Chinese）

[8] HAO J L, DENG L F, WANG K Y, SONG H, JIANG N, NISHIMURA K.Research progress on HPHT synthesis of doped diamond. Journal of Synthetic Crystals,2024, 53(2), 194-209. （in Chinese）

[9] Xiao X , Zheng L , Li Q ,et al.HPHT welding of CVD polycrystalline diamond films

[J].Journal of the European Ceramic Society, 2025, 45(7).

[10] Ren Y , Li X , Lv W ,et al.Recent progress in homoepitaxial single-crystal diamond growth via MPCVD

[J].Journal of Materials Science: Materials in Electronics, 2024, 35(7).

[11] Plotnikov M Y , Gorbachev Y E , Emelyanov A A ,et al.Gas-jet HFCVD synthesis of diamonds from mixtures of hydrogen with ethylene and methane

[J].Diamond and Related Materials, 2022.

[12] Z. Yimeng, H. Shirun, Y. Mingyu, L. Jiawei, R. Shuqian, Z. Jiesen, Z. Hongwei, &C. Qiao, Thermally activated conductance of three different CVD grown free-standing polycrystalline diamond sheets, Diamond and Related Materials, 2025 ,154 ,112128.

[13] L.F. Hei, Y. Zhao, J.J. Wei, J.L. Liu, C.M. Li, &F.-x. Lü, Optical characterization of single-crystal diamond grown by DC arc plasma jet CVD, International Journal of Minerals, Metallurgy and Materials, 2017,24(12): 1424-1430.

[14] Lv, F. X., Hei, L. F., Li, C. M., Tang, W. Z., Li, G. H., Guo, H., & Sun, Z. L. Growth of large-size single crystal diamond by DC arc plasma jet method. Superhard Material Engineering, 2018, 30(02): 31-40.（in Chinese）