TY - JOUR
T1 - Correlation between chemical composition of silver alloys and photothermal radiometry signals
AU - Rojas-Rodríguez, I.
AU - Velázquez-Hernández, R.
AU - Jaramillo-Vigueras, D.
AU - Mendoza-López, M. L.
AU - Millan-Malo, M.
AU - Rodíguez-García, M. E.
N1 - Funding Information:
Acknowledgments This research was supported by Project PAPIIT IN1208093 2009/2011, UNAM. The author R.V.H. would like to thank CONACYT for their financial support. He would also like to a recognize Silvia C. Stroet for her efforts in editing the English content of this document.
PY - 2012/12
Y1 - 2012/12
N2 - The development of nondestructive and noncontact techniques for evaluation of metallic materials is invaluable to metal characterization. The photothermal radiometry (PTR) amplitude and phase images of silver alloys were used to study the silver distribution in alloys rich in silver and copper for Ag concentrations between 37 mass% and 92 mass%. The silver concentration was determined using inductively coupled plasma. It was found that for Ag concentrations lower than 50 mass%, the PRT signals are governed by the thermal and optical properties of copper and vice versa. It was possible to establish a good correlation between the PTR amplitude and phase signal with the Ag concentration. This means that after calibration it is possible to determine the Ag concentration using nondestructive evaluation.
AB - The development of nondestructive and noncontact techniques for evaluation of metallic materials is invaluable to metal characterization. The photothermal radiometry (PTR) amplitude and phase images of silver alloys were used to study the silver distribution in alloys rich in silver and copper for Ag concentrations between 37 mass% and 92 mass%. The silver concentration was determined using inductively coupled plasma. It was found that for Ag concentrations lower than 50 mass%, the PRT signals are governed by the thermal and optical properties of copper and vice versa. It was possible to establish a good correlation between the PTR amplitude and phase signal with the Ag concentration. This means that after calibration it is possible to determine the Ag concentration using nondestructive evaluation.
KW - Chemical composition
KW - Metallographic phases
KW - Nondestructive evaluation techniques
KW - Photothermal radiometry
KW - Silver alloys
UR - http://www.scopus.com/inward/record.url?scp=84886727880&partnerID=8YFLogxK
U2 - 10.1007/s10765-012-1334-6
DO - 10.1007/s10765-012-1334-6
M3 - Artículo
SN - 0195-928X
VL - 33
SP - 2382
EP - 2389
JO - International Journal of Thermophysics
JF - International Journal of Thermophysics
IS - 12
ER -