Advances in Manufacturing ›› 2020, Vol. 8 ›› Issue (4): 440-446.doi: 10.1007/s40436-020-00324-z

• ARTICLES • 上一篇    

Nanometric polishing of lutetium oxide by plasma-assisted etching

Peng Lyu1, Min Lai1, Feng-Zhou Fang1,2   

  1. 1 State Key Laboratory of Precision Measuring Technology and Instruments, Centre of Micro/Nano Manufacturing Technology(MNMT), Tianjin University, Tianjin 300072, People's Republic of China;
    2 Centre of Micro/Nano Manufacturing Technology(MNMTDublin), School of Mechanical and Materials Engineering, University College Dublin, Dublin 4, Ireland
  • 收稿日期:2020-01-30 修回日期:2020-07-10 发布日期:2020-12-07
  • 通讯作者: Min Lai, Feng-Zhou Fang E-mail:laimin@tju.edu.cn;fzfang@tju.edu.cn
  • 基金资助:
    This work was supported by the National Key Research & Development Program (Grant No. 2016YFB1102203), the National Natural Science Foundation of China (Grant No. 61635008), the “111” project by the State Administration of Foreign Experts Affairs and the Ministry of Education of China (Grant No. B07014), and the National Science Fund for Distinguished Young Scholars (Grant No. 51605327).

Nanometric polishing of lutetium oxide by plasma-assisted etching

Peng Lyu1, Min Lai1, Feng-Zhou Fang1,2   

  1. 1 State Key Laboratory of Precision Measuring Technology and Instruments, Centre of Micro/Nano Manufacturing Technology(MNMT), Tianjin University, Tianjin 300072, People's Republic of China;
    2 Centre of Micro/Nano Manufacturing Technology(MNMTDublin), School of Mechanical and Materials Engineering, University College Dublin, Dublin 4, Ireland
  • Received:2020-01-30 Revised:2020-07-10 Published:2020-12-07
  • Contact: Min Lai, Feng-Zhou Fang E-mail:laimin@tju.edu.cn;fzfang@tju.edu.cn
  • Supported by:
    This work was supported by the National Key Research & Development Program (Grant No. 2016YFB1102203), the National Natural Science Foundation of China (Grant No. 61635008), the “111” project by the State Administration of Foreign Experts Affairs and the Ministry of Education of China (Grant No. B07014), and the National Science Fund for Distinguished Young Scholars (Grant No. 51605327).

摘要: Plasma-assisted etching, in which the irradiation of hydrogen plasma and inorganic acid etching are integrated, is proposed as a novel polishing method for sesquioxide crystals. By means of this approach, low damage and even damage-free surfaces with a high material removal rate can be achieved in lutetium oxide surface finishing. Analysis of transmission electron microscopy and X-ray photoelectron spectroscopy reveal that plasma hydrogenation converts the sesquioxide into hydroxide, which leads a high efficient way to polish the surfaces. The influences of process conditions on the etching boundary and surface roughness are also qualitatively investigated using scanning electron microscope and white light interferometry. The newly developed process is verified by a systematic experiment.

The full text can be downloaded at https://link.springer.com/article/10.1007/s40436-020-00324-z

关键词: Plasma-assisted etching, Lutetium oxide, Surface roughness, Subsurface damage

Abstract: Plasma-assisted etching, in which the irradiation of hydrogen plasma and inorganic acid etching are integrated, is proposed as a novel polishing method for sesquioxide crystals. By means of this approach, low damage and even damage-free surfaces with a high material removal rate can be achieved in lutetium oxide surface finishing. Analysis of transmission electron microscopy and X-ray photoelectron spectroscopy reveal that plasma hydrogenation converts the sesquioxide into hydroxide, which leads a high efficient way to polish the surfaces. The influences of process conditions on the etching boundary and surface roughness are also qualitatively investigated using scanning electron microscope and white light interferometry. The newly developed process is verified by a systematic experiment.

The full text can be downloaded at https://link.springer.com/article/10.1007/s40436-020-00324-z

Key words: Plasma-assisted etching, Lutetium oxide, Surface roughness, Subsurface damage