Feedback enhanced plasma spray tool
Abstract
An improved automatic feedback control scheme enhances plasma spraying of powdered material through reduction of process variability and providing better ability to engineer coating structure. The present inventors discovered that controlling centroid position of the spatial distribution along with other output parameters, such as particle temperature, particle velocity, and molten mass flux rate, vastly increases control over the sprayed coating structure, including vertical and horizontal cracks, voids, and porosity. It also allows improved control over graded layers or compositionally varying layers of material, reduces variations, including variation in coating thickness, and allows increasing deposition rate. Various measurement and system control schemes are provided.
- Inventors:
- Issue Date:
- Research Org.:
- Idaho National Laboratory (INL), Idaho Falls, ID (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1175558
- Patent Number(s):
- 6967304
- Application Number:
- 10/423,237
- Assignee:
- Cyber Materials LLC (Auburndale, MA)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B05 - SPRAYING OR ATOMISING IN GENERAL B05B - SPRAYING APPARATUS
B - PERFORMING OPERATIONS B23 - MACHINE TOOLS B23K - SOLDERING OR UNSOLDERING
- DOE Contract Number:
- AC07-99ID13727
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION
Citation Formats
Gevelber, Michael Alan, Wroblewski, Donald Edward, Fincke, James Russell, Swank, William David, Haggard, Delon C., and Bewley, Randy Lee. Feedback enhanced plasma spray tool. United States: N. p., 2005.
Web.
Gevelber, Michael Alan, Wroblewski, Donald Edward, Fincke, James Russell, Swank, William David, Haggard, Delon C., & Bewley, Randy Lee. Feedback enhanced plasma spray tool. United States.
Gevelber, Michael Alan, Wroblewski, Donald Edward, Fincke, James Russell, Swank, William David, Haggard, Delon C., and Bewley, Randy Lee. Tue .
"Feedback enhanced plasma spray tool". United States. https://www.osti.gov/servlets/purl/1175558.
@article{osti_1175558,
title = {Feedback enhanced plasma spray tool},
author = {Gevelber, Michael Alan and Wroblewski, Donald Edward and Fincke, James Russell and Swank, William David and Haggard, Delon C. and Bewley, Randy Lee},
abstractNote = {An improved automatic feedback control scheme enhances plasma spraying of powdered material through reduction of process variability and providing better ability to engineer coating structure. The present inventors discovered that controlling centroid position of the spatial distribution along with other output parameters, such as particle temperature, particle velocity, and molten mass flux rate, vastly increases control over the sprayed coating structure, including vertical and horizontal cracks, voids, and porosity. It also allows improved control over graded layers or compositionally varying layers of material, reduces variations, including variation in coating thickness, and allows increasing deposition rate. Various measurement and system control schemes are provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Nov 22 00:00:00 EST 2005},
month = {Tue Nov 22 00:00:00 EST 2005}
}
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Works referenced in this record:
Wiley Encyclopedia of Electrical and Electronics Engineering
Process Control
book, December 1999
- Gevelber, Michael A.
- Wiley Encyclopedia of Electrical and Electronics Engineering
Plasma spray processes: diagnostics and control?
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- Pure and Applied Chemistry, Vol. 71, Issue 10
Diagnostics and control in the thermal spray process
journal, September 2001
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- Surface and Coatings Technology, Vol. 146-147
In-flight particle surface temperature measurement: Influence of the plasma light scattered by the particles
journal, September 1993
- Gougeon, P.; Moreau, C.
- Journal of Thermal Spray Technology, Vol. 2, Issue 3
Rapid solidification and microstructure development during plasma spray deposition
journal, December 1996
- Sampath, S.; Herman, H.
- Journal of Thermal Spray Technology, Vol. 5, Issue 4