J. Phys. IV France 125 (2005) 601-604
Laser thermoreflectance temperature measurements of metal coating alloys on a rotating platformY. Liu, M. Choy, A. Mandelis, J. Batista and B. Li
Center for Advanced Diffusion Wave Technologies, Department of Mechanical and Industrial Engineering University of Toronto, 5 King's College Road, Toronto, ON, M5S 3G8, Canada
Instruments commercially available to monitor the surface temperature of metal parts undergoing advanced alloy deposition processes are extremely limited, and for some processes; unavailable. In turn, a non-intrusive, non-contact instrument employing optical reflectance to measure surface temperatures of parts undergoing such coating conditions is presented. Very good correlation was obtained between the reflectance signal and the surface temperature for steel, varying titanium nitride coat thickness, and rotating sample modeling. All experimental results show that the laser thermoreflectance temperature measurement technique has a strong potential of being used as a real-time on-line temperature monitoring instrument for metal coating processes.
© EDP Sciences 2005