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Control of thermal spray processes by means of process maps and process windows

Friis, Martin LU and Persson, Christer LU (2003) In Journal of Thermal Spray Technology 12(1). p.44-52
Abstract
A general method to map and control thermal spray processes, ensuring predefined levels of selected final coating properties, is presented. The method relies on monitoring and individually controlling particle velocity and particle temperature through selected spray gun parameters. Mapping of the process results in process maps describing the individual effect of particle velocity and particle temperature on each selected coating property of concern; in this case, different features of the microstructure and deposition efficiency. From the information provided by the process maps, a process window is constructed. This process window provides the limits within which particle velocity and particle temperature are allowed to vary to fulfill a... (More)
A general method to map and control thermal spray processes, ensuring predefined levels of selected final coating properties, is presented. The method relies on monitoring and individually controlling particle velocity and particle temperature through selected spray gun parameters. Mapping of the process results in process maps describing the individual effect of particle velocity and particle temperature on each selected coating property of concern; in this case, different features of the microstructure and deposition efficiency. From the information provided by the process maps, a process window is constructed. This process window provides the limits within which particle velocity and particle temperature are allowed to vary to fulfill a predefined coating specification. To verify the method, two predefined thermal barrier top coatings one porous and one dense-were produced by air plasma spray with satisfactory results. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
process window, process map, process control, plasma spray, particle velocity, particle temperature, dpv 2000, microstructure
in
Journal of Thermal Spray Technology
volume
12
issue
1
pages
44 - 52
publisher
Springer
external identifiers
  • wos:000181705000007
  • scopus:0037352972
ISSN
1544-1016
DOI
10.1361/105996303770348492
language
English
LU publication?
yes
id
016d2c8d-e687-45ec-a66b-ffae0be6dc66 (old id 315377)
date added to LUP
2007-09-03 09:21:09
date last changed
2018-01-07 05:10:05
@article{016d2c8d-e687-45ec-a66b-ffae0be6dc66,
  abstract     = {A general method to map and control thermal spray processes, ensuring predefined levels of selected final coating properties, is presented. The method relies on monitoring and individually controlling particle velocity and particle temperature through selected spray gun parameters. Mapping of the process results in process maps describing the individual effect of particle velocity and particle temperature on each selected coating property of concern; in this case, different features of the microstructure and deposition efficiency. From the information provided by the process maps, a process window is constructed. This process window provides the limits within which particle velocity and particle temperature are allowed to vary to fulfill a predefined coating specification. To verify the method, two predefined thermal barrier top coatings one porous and one dense-were produced by air plasma spray with satisfactory results.},
  author       = {Friis, Martin and Persson, Christer},
  issn         = {1544-1016},
  keyword      = {process window,process map,process control,plasma spray,particle velocity,particle temperature,dpv 2000,microstructure},
  language     = {eng},
  number       = {1},
  pages        = {44--52},
  publisher    = {Springer},
  series       = {Journal of Thermal Spray Technology},
  title        = {Control of thermal spray processes by means of process maps and process windows},
  url          = {http://dx.doi.org/10.1361/105996303770348492},
  volume       = {12},
  year         = {2003},
}