The Analysis of Coating Quality of Thin Copper Film Prepared by Wire Exploding Spray Coating Method
Wire Exploding Spray Coating (WESC) technology is capable to prepare metal coating on nonmetal surface, such as glass, ceramic, etc. In order to determine the relationship between the technological parameters and the coating quality, experimental samples
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Abstract Wire Exploding Spray Coating (WESC) technology is capable to prepare metal coating on nonmetal surface, such as glass, ceramic, etc. In order to determine the relationship between the technological parameters and the coating quality, experimental samples of WESC under different technological parameters are measured and analyzed in this paper. The results demonstrate that, during the WESC process, when the initial capacitor voltage increases from 10 to 20 kV, the metal wire diameter decreases from 1 to 0.5 mm, the circuit conductance decreases from 10.8 to 3.9 μH, the wire is heated up more sufficient, the mean diameter of metal micro-particle generated by the exploding is smaller, and the temperature and speed of the particles are higher, and the prepared coating is more compact, dense and even. Keywords Wire exploding spray coating • Technological parameter • Coating quality • SEM
1 Introduction It has a significant application value to prepare a metal film onto nonmetal material’s surface, such as glass and ceramic [1]. But because the glass and ceramic are frangible, cannot be heating up for a relatively long time, it is very difficult to
J. Yang (*) • C. Jiang • F. Yang • S. Yi Department of Information Science & Engineering, Guilin University of Technology, Guilin, China e-mail: [email protected] X. Fan Department of Mechanical and Electrical Engineering, Guilin University of Electronic Technology, Guilin, China F. Yang Henan Xinyang Power Supply Company, Xinyang, China W. Wang (ed.), Mechatronics and Automatic Control Systems, Lecture Notes in Electrical Engineering 237, DOI 10.1007/978-3-319-01273-5_7, © Springer International Publishing Switzerland 2014
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prepare a coating on the surface on these nonmetals, especially the inner surface of the nonmetal tube [2, 3]. Wire exploding spray coating (WESC) is one of thermal spray methods; it featured with a fast and controllable spray process, metal or nonmetal substrate material, and less heating up process affecting. The WESC method is suitable for preparing thin film on nonmetal surface, and will have a bright application foreground [4]. On the other hand, the WESC process is very complicated; the process is affected by many technological parameters. The WESC process is comprised of deeply coupled electrical process and physical process [5, 6]. In order to unveil the relationship between technological parameters (namely, the initial voltage of the capacitor, the inductance of the circuit, the diameter of the metal wire, and so on) and the electrical and physical process, and finally, how the technological parameters affecting the prepared film quality, a few experiments are carried out in this paper. The electrical and physical process under different technological parameters has been analyzed in our former work [7]; and the instructions for WESC film preparing have also been proposed. In this paper, the WESC method is conducted to prepare copper film on the glass and ceramic surface; the samples prepared under different tec
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