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| Home > Publications database > Plasma and Particle Temperature Measurements in Thermal Spray: Approaches and Applications |
| Home > Publications database > Plasma and Particle Temperature Measurements in Thermal Spray: Approaches and Applications |
| Journal Article | PreJuSER-17560 |
; ;
2011
Springer
Boston, Mass.
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Please use a persistent id in citations: doi:10.1007/s11666-010-9603-z
Abstract: Growing demands on the quality of thermally sprayed coatings require reliable methods to monitor and optimize the spraying processes. Thus, the importance of diagnostic methods is increasing. A critical requirement of diagnostic methods in thermal spray is the accurate measurement of temperatures. This refers to the hot working gases as well as to the in-flight temperature of the particles. This article gives a review of plasma and particle temperature measurements in thermal spray. The enthalpy probe, optical emission spectroscopy, and computer tomography are introduced for plasma measurements. To determine the in-flight particle temperatures mainly multicolor pyrometry is applied and is hence described in detail. The theoretical background, operation principles and setups are given for each technique. Special interest is attached to calibration methods, application limits, and sources of errors. Furthermore, examples of fields of application are given in the form of results of current research work.
Keyword(s): J ; Boltzmann plot (auto) ; enthalpy probe (auto) ; optical emission spectroscopy (auto) ; particle temperature (auto) ; plasma temperature (auto) ; thermal spray (auto) ; two-color pyrometry (auto)
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