[7] Semenov S, Cetegen B. Journal of Thermal Spray Technology, 2001, 10(2): 326.

[8] Gindral M. Centre de recherches en Physique des Plasma, Switzerland, 2004.

[9] Bockasten K. Journal of the Optical Society of America, 1961, 51(9).

[10] Illingworth R. Journal of Physics E Scientific Instruments, 1981, 14(2).

[12] Alvarez R, Rodero A, Quintero M C. Spectrochimica Acta Part B, 2002, 57: 1665.

[15] Hamatani H, Crawford W S, Capelli M. Surface and Coatings Technology, 2002, 162: 79.

[16] Rajabian M, Gravelle D, Vacqui S. Plasma Chem and Plasma Proc., 2004, 24(2): 261.