Effects of the spray angle on splat morphology during thermal spraying

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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/41681

Title: Effects of the spray angle on splat morphology during thermal spraying
Author(s): Montavon, Ghislain; Sampath, Sanjay; Berndt, Christopher C.; Herman, Herbert; Coddet, Christian
Abstract: The effects of spray angle on the morphology of thermally sprayed particles impinging on polished substrates have been studied by implementing several statistical tools (i.e., Gaussian analysis, Weibull distribution and the t-test). Nickel-based alloy (Astroloy) particles were vacuum plasma-sprayed onto copper plates at normal (i.e., 90 °) and several off-normal spray angles (i.e., 75, 60, 45 and 30 °). Different geometric shape factors (i.e., referring to an equivalent diameter, elongation factor and degree of splashing) were determined using image analysis. The spray angle had a strong effect on these geometric properties, in particular on the elongation factor of the shapes.
Publication type: Journal article
Source: Surface and Coatings Technology, Vol. 91, no. 1-2 (May 1997), pp. 107-115
Publication year: 1997
Keyword(s): Deposition efficiency; Droplet; Image analysis; Morphology; Nickel alloys; Nickel plating; Plasma spraying; Spray angle; Statistical analysis; Statistical methods; Vacuum plasma spraying
Publisher: Elsevier
ISSN: 0257-8972
Publisher URL: http://dx.doi.org/10.1016/S0257-8972(96)03137-4
Peer reviewed