This title appears in the Scientific Report :
2008
Please use the identifier:
http://dx.doi.org/10.1016/j.surfcoat.2008.04.012 in citations.
Preliminary study on the TriplexPro TM-200 gun for atmospheric plasma spraying of yttria-stabilized zirconia
Preliminary study on the TriplexPro TM-200 gun for atmospheric plasma spraying of yttria-stabilized zirconia
The recently introduced three-cathode TriplexPrO(TM)-200 atmospheric plasma spray gun was tested with yttria-stabilized zirconia. The effects on the particle characteristics (velocity and surface temperature) were measured by time-of-flight measurement and two-color pyrometry, respectively (DPV-2000...
Saved in:
Personal Name(s): | Mauer, G. |
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Vaßen, R. / Stöver, D. | |
Contributing Institute: |
Werkstoffsynthese und Herstellungsverfahren; IEF-1 JARA-ENERGY; JARA-ENERGY |
Published in: | Surface and coatings technology, 202 (2008) S. 4374 - 4381 |
Imprint: |
Amsterdam [u.a.]
Elsevier Science
2008
|
Physical Description: |
4374 - 4381 |
DOI: |
10.1016/j.surfcoat.2008.04.012 |
Document Type: |
Journal Article |
Research Program: |
Rationelle Energieumwandlung |
Series Title: |
Surface and Coatings Technology
202 |
Subject (ZB): | |
Publikationsportal JuSER |
The recently introduced three-cathode TriplexPrO(TM)-200 atmospheric plasma spray gun was tested with yttria-stabilized zirconia. The effects on the particle characteristics (velocity and surface temperature) were measured by time-of-flight measurement and two-color pyrometry, respectively (DPV-2000 diagnostic system) while the arc current intensity, the plasma gas flow, and its composition were systematically varied.With typical spray parameters of the Triplex(TM) II, using the TriplexPrO(TM)-200 with the 9.0 mm nozzle the particle characteristics were found to be almost the same while the nozzle still provides power reserves. In this case, helium may be dispensed with entirely.Using the 6.5 mm or the 5.0 mm nozzle operation is limited to a maximum 500 A current, which significantly increased particle velocities, but it was not possible to keep the particles fully molten. The investigated range of powder grain size (d(50)=58 mu m) is to be considered with these parameters. Further possibilities are to be expected with the 6.5 mm and 5.0 mm nozzle using smaller-sized or lower-melting powders.Operating the TriplexPrO(TM)-200 gun with the 11.0 mm nozzle and/or nitrogen as secondary plasma gas instead of helium, increased particle temperatures and velocities are achievable. This offers extended possibilities to spray high-melting oxide ceramics like yttria-partially stabilized zirconia. (C) 2008 Elsevier B.V. All rights reserved. |