Impacting particle temperature monitoring during plasma spray deposition
- 1 August 1990
- journal article
- Published by IOP Publishing in Measurement Science and Technology
- Vol. 1 (8) , 807-814
- https://doi.org/10.1088/0957-0233/1/8/023
Abstract
Instrumentation for monitoring the thermal history of individual plasma sprayed particles as they impact on a substrate is described. A double-wavelength fibre optic temperature sensor is focused on a small spot on the substrate surface to record the cooling rate of particles impacting on this region. Discrimination against in-flight particles intersecting the pyrometer field of view is obtained by a second fibre optic sensor viewing the same spot at an angle and working in coincidence with the first sensor. Typical recorded thermograms are presented and interpreted with reference to a numerical thermal propagation model.Keywords
This publication has 19 references indexed in Scilit:
- Fast photothermal measurement system for inspection of weak adhesion defectsApplied Physics Letters, 1989
- Heat conductivity of oxide coatings by photothermal radiometry between 293 and 1173 KApplied Optics, 1988
- In-flight measurement of particle size and temperatureJournal of Physics E: Scientific Instruments, 1988
- Transmission electron microscopy characterization of plasma sprayed TiC coatingsJournal of Vacuum Science & Technology A, 1985
- Two-colour pyrometer measurement of the temperature of individual combusting particlesJournal of Physics E: Scientific Instruments, 1985
- Pulsed photothermal evaluation of layered materialsJournal of Applied Physics, 1984
- Influence of temperature on the bonding mechanism of plasma-sprayed coatingsThin Solid Films, 1982
- The significance of thermal contact resistance in two-layer thermal-barrier-coated turbine vanesThin Solid Films, 1980
- Temperature distributions of solid particles in a plasma streamRevue de Physique Appliquée, 1977
- A study of the bonding mechanism of sprayed coatingsJournal of Vacuum Science and Technology, 1974