Plasma Spraying of Copper by Hybrid Water-Gas DC Arc Plasma Torch

0360382 - ÚFP 2012 RIV US eng J - Článek v odborném periodiku
Kavka, Tetyana - Matějíček, Jiří - Ctibor, Pavel - Mašláni, Alan - Hrabovský, Milan
Plasma Spraying of Copper by Hybrid Water-Gas DC Arc Plasma Torch.
Journal of Thermal Spray Technology. Roč. 20, č. 4 (2011), s. 760-774. ISSN 1059-9630. E-ISSN 1544-1016
Grant CEP: GA ČR GAP205/11/2070
Výzkumný záměr: CEZ:AV0Z20430508
Klíčová slova: copper coatings * hybrid water-gas torch * metallic particle oxidation
Kód oboru RIV: BL - Fyzika plazmatu a výboje v plynech
Impakt faktor: 1.812, rok: 2011
http://www.springerlink.com/content/78n3736855261197/fulltext.pdf

Water-stabilized DC arc plasma torches offer a good alternative to common plasma sources used for plasma spraying applications. Unique properties of the generated plasma are determined by a specific plasma torch construction. This article is focused on a study of the plasma spraying process performed by a hybrid torch WSP500-H, which combines two principles of arc stabilization-water vortex and gas flow. Spraying tests with copper powder have been carried out in a wide range of plasma torch parameters. First, analyses of particle in-flight behavior for various spraying conditions were done. After, particles were collected in liquid nitrogen, which enabled analyses of the particle in-flight oxidation. A series of spraying tests were carried out and coatings were analyzed for their microstructure, porosity, oxide content, mechanical, and thermal properties.
Trvalý link: http://hdl.handle.net/11104/0197951