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Chinese Physics, 2004, Vol. 13(7): 1076-1081    DOI: 10.1088/1009-1963/13/7/019
CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES Prev   Next  

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
a College of Physics Science and Technology, Hebei University, Baoding 071002, China; b Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China
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.
Keywords:  Morphology      localized growth of materials      dielectric barrier discharge  
Received:  11 November 2003      Revised:  30 March 2004      Accepted manuscript online: 
PACS:  61.41.+e (Polymers, elastomers, and plastics)  
  52.80.Dy (Low-field and Townsend discharges)  
  51.50.+v (Electrical properties)  
Fund: Project supported by the National Natural Science Foundation of China (Grant No 10175087).

Cite this article: 

Zhao Qing-Xun (赵庆勋), Li Xue-Chen (李雪辰), Jiang Nan (江南), Wang Long (王龙) Morphological study of the localized growth of materials in dielectric barrier discharge 2004 Chinese Physics 13 1076

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