Advances in Manufacturing ›› 2025, Vol. 13 ›› Issue (1): 196-210.doi: 10.1007/s40436-024-00532-x

• • 上一篇    

Heterogeneous ablation behavior of SiCf/SiC composite by nanosecond pulse laser

Jia-Heng Zeng, Quan-Li Zhang, Yu-Can Fu, Jiu-Hua Xu   

  1. College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, People's Republic of China
  • 收稿日期:2024-01-02 修回日期:2024-04-18 发布日期:2025-02-26
  • 通讯作者: Quan-Li ZHANG,E-mail:zhangql@nuaa.edu.cn E-mail:zhangql@nuaa.edu.cn
  • 作者简介:Jia-Heng Zeng is a PhD candidate in the Department of Mechanical Engineering at Nanjing University of Aeronautics and Astronautics, Nanjing, China. His current research interests include laser machining and laser assisted machining of ceramic matrix composites.
    Quan-Li Zhang earned his Ph.D. in the Department of Mechanical Engineering from Harbin Institute of Technology, Harbin, China, in 2017. He is currently an associate professor in the College of Mechanical & Electrical Engineering at Nanjing University of Aeronautics and Astronautics. His research interests include ultra precision grinding of hard and brittle materials, laser assisted machining, surface damage mechanism, and machining process simulation.
    Yu-Can Fu earned his Ph.D. in Mechanical Engineering from Nanjing University of Aeronautics and Astronautics, Nanjing, China, in 1999. Currently, he serves as a professor and dean of the College of Mechanical & Electrical Engineering at Nanjing University of Aeronautics and Astronautics. His research focuses on high efficiency precision machining technology for challenging materials, tool technology for superhard materials, green high efficiency cooling technology, and high performance composite machining technology.
    Jiu-Hua Xu earned his Ph.D. in Mechanical Engineering from Nanjing University of Aeronautics and Astronautics, Nanjing, China, in 1992. Currently, he serves as a professor and head of the Institute of High Efficiency Precision Machining Technology at Nanjing University of Aeronautics and Astronautics. His research interests include high performance cutting/grinding technology, superhard abrasive tool technology, and high efficiency composite machining technology.
  • 基金资助:
    This work was supported by the National Natural Science Foundation of China (NSFC) (Grant Nos. 52175412, 92060203), the Natural Science Foundation of Jiangsu Province (Grant No. BK20201298), the Science Center for Gas Turbine Project (Grant No. P2022-A-IV-002-001), and the Interdisciplinary Innovation Fund for Doctoral Students of Nanjing University of Aeronautics and Astronautics (Grant No. KXKCXJJ202205).

Heterogeneous ablation behavior of SiCf/SiC composite by nanosecond pulse laser

Jia-Heng Zeng, Quan-Li Zhang, Yu-Can Fu, Jiu-Hua Xu   

  1. College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, People's Republic of China
  • Received:2024-01-02 Revised:2024-04-18 Published:2025-02-26
  • Contact: Quan-Li ZHANG,E-mail:zhangql@nuaa.edu.cn E-mail:zhangql@nuaa.edu.cn
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (NSFC) (Grant Nos. 52175412, 92060203), the Natural Science Foundation of Jiangsu Province (Grant No. BK20201298), the Science Center for Gas Turbine Project (Grant No. P2022-A-IV-002-001), and the Interdisciplinary Innovation Fund for Doctoral Students of Nanjing University of Aeronautics and Astronautics (Grant No. KXKCXJJ202205).

摘要: Silicon carbide fiber-reinforced silicon carbide composites are preferred materials for hot-end structural parts of aero-engines. However, their anisotropy, heterogeneity, and ultra-high hardness make them difficult to machine. In this paper, 2.5-dimensional braided SiCf/SiC composites were processed using a nanosecond pulsed laser. The temperature field distribution at the laser ablated spot is analyzed through finite element modeling (FEM), and the ablation behavior of the two main components, SiC fiber and SiC matrix, is explored. A plasma plume forms when the pulse energy is sufficiently high, which increases with growing energy. The varied ablation behavior of the components is investigated, including the removal rate, ablative morphology, and phase transition. The ablation thresholds of SiC matrix and SiC fiber are found to be 2.538 J/cm2 and 3.262 J/cm2, respectively.

The full text can be downloaded at https://link.springer.com/article/10.1007/s40436-024-00532-x

关键词: Nanosecond pulsed laser, SiCf/SiC composites, Plasma, Surface characteristics, Ablation thresholds

Abstract: Silicon carbide fiber-reinforced silicon carbide composites are preferred materials for hot-end structural parts of aero-engines. However, their anisotropy, heterogeneity, and ultra-high hardness make them difficult to machine. In this paper, 2.5-dimensional braided SiCf/SiC composites were processed using a nanosecond pulsed laser. The temperature field distribution at the laser ablated spot is analyzed through finite element modeling (FEM), and the ablation behavior of the two main components, SiC fiber and SiC matrix, is explored. A plasma plume forms when the pulse energy is sufficiently high, which increases with growing energy. The varied ablation behavior of the components is investigated, including the removal rate, ablative morphology, and phase transition. The ablation thresholds of SiC matrix and SiC fiber are found to be 2.538 J/cm2 and 3.262 J/cm2, respectively.

The full text can be downloaded at https://link.springer.com/article/10.1007/s40436-024-00532-x

Key words: Nanosecond pulsed laser, SiCf/SiC composites, Plasma, Surface characteristics, Ablation thresholds