中国物理B ›› 2004, Vol. 13 ›› Issue (7): 1076-1081.doi: 10.1088/1009-1963/13/7/019

• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇    下一篇

Morphological study of the localized growth of materials in dielectric barrier discharge

赵庆勋1, 李雪辰1, 江南2, 王龙2   

  1. (1)College of Physics Science and Technology, Hebei University, Baoding 071002, China; (2)Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China
  • 收稿日期:2003-11-11 修回日期:2004-03-30 出版日期:2005-07-05 发布日期:2005-07-05
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 10175087).

Morphological study of the localized growth of materials in dielectric barrier discharge

Zhao Qing-Xun (赵庆勋)a, Li Xue-Chen (李雪辰)a, Jiang Nan (江南)b, Wang Long (王龙)b   

  1. a College of Physics Science and Technology, Hebei University, Baoding 071002, China; b Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China
  • Received:2003-11-11 Revised:2004-03-30 Online:2005-07-05 Published:2005-07-05
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 10175087).

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摘要： The localized growth of materials has been realized in a dielectric barrier discharge reactor in the mixture of acetylene and argon in previous work. In this paper, the morphology of the materials synthesized in the process is studied. The results indicate that the polymer's structure consists of three layers. The layer near the substrate is homogeneous with thickness of several micrometres; the middle layer is composed of dense bulges with height of about more than 10μm in average. The distance between two neighbouring bulges is about 230μm; the top layer is made up of a few large columns with the height up to 2mm, and with the average distance of about 3.5mm. The growth of the three layers corresponds to three types of discharge. The discharge mechanism is analysed through studying the morphology of the polymer. It can be deduced from the morphology that the first and second discharge phases should belong to the Townsend breakdown, and the last discharge phase should be explained on the basis of the streamer mechanism.

Abstract: The localized growth of materials has been realized in a dielectric barrier discharge reactor in the mixture of acetylene and argon in previous work. In this paper, the morphology of the materials synthesized in the process is studied. The results indicate that the polymer's structure consists of three layers. The layer near the substrate is homogeneous with thickness of several micrometres; the middle layer is composed of dense bulges with height of about more than 10μm in average. The distance between two neighbouring bulges is about 230μm; the top layer is made up of a few large columns with the height up to 2mm, and with the average distance of about 3.5mm. The growth of the three layers corresponds to three types of discharge. The discharge mechanism is analysed through studying the morphology of the polymer. It can be deduced from the morphology that the first and second discharge phases should belong to the Townsend breakdown, and the last discharge phase should be explained on the basis of the streamer mechanism.

Key words: Morphology, localized growth of materials, dielectric barrier discharge

中图分类号:  (Polymers, elastomers, and plastics)

  • 61.41.+e
52.80.Dy (Low-field and Townsend discharges) 51.50.+v (Electrical properties)