US EPA

3025753 

Journal Article 

A Perspective on Plasma Spray Technology 

Vardelle, A; Moreau, C; Themelis, NJ; Chazelas, C 

2015 

1 

Plasma Chemistry and Plasma Processing
ISSN: 0272-4324
EISSN: 1572-8986 

35 

3 

491-509 

10.1007/s11090-014-9600-y 

WOS:000352264500007 

Plasma spraying is often assumed to be a mature technology in which all the important phenomena have been observed and described adequately. However, the intricate interactions between the electrically conducting fluid and electromagnetic, thermal and acoustics phenomena that affect the operation of the plasma torch are not fully understood as yet. Also, variants of the plasma spray process are emerging and raise new scientific questions. These technologies include the spraying of liquid feedstock in the form of submicrometric particles or chemical precursors in a solvent and, coatings formed by vapor condensation onto the substrate. These relatively novel techniques make possible the production of thinner coatings than in air plasma spraying with a fine and even nanostructured microstructure. This paper attempts to define some of the current important issues and research priorities in the plasma spray field. 

Surface engineering; Plasma spraying; Plasma spray torch; Splat formation; Suspension and solution plasma spraying; Very low pressure plasma spraying; Sustainable manufacturing