Calorimetric Measurement of Temperature Dependent Absorption in Copper

2009 ◽  
pp. 142-142-10 ◽  
Author(s):  
RS Quimby ◽  
M Bass ◽  
L Liou
Keyword(s):  
Calorimetric Measurement ◽  
Temperature Dependent ◽  
Dependent Absorption

An analysis of temperature-dependent absorption and photocurrent spectra in BaAl2Se4 layers

2015 ◽  
Vol 117 (16) ◽  
pp. 165704
Author(s):  
K. J. Hong ◽  
T. S. Jeong ◽  
C. J. Youn ◽  
J. D. Moon
Keyword(s):  
Temperature Dependent ◽  
Dependent Absorption ◽  
Photocurrent Spectra

Temperature-dependent absorption spectrum of betaine-30 in methanol

2002 ◽  
Vol 356 (3-4) ◽  
pp. 214-220 ◽  
Author(s):  
Xihua Zhao ◽  
Fritz J. Knorr ◽  
Jeanne L. McHale
Keyword(s):  
Absorption Spectrum ◽  
Temperature Dependent ◽  
Dependent Absorption

Temperature-dependent absorption lines observation in Raman spectra of SmFe3 (BO3 )4 ferroborate

2018 ◽  
Vol 49 (10) ◽  
pp. 1732-1735 ◽  
Author(s):  
Evgeniya Moshkina ◽  
Irina Gudim ◽  
Vladislav Temerov ◽  
Alexander Krylov
Keyword(s):  
Raman Spectra ◽  
Absorption Lines ◽  
Temperature Dependent ◽  
Dependent Absorption

Influence of Temperature and Wavelength on Optical Behavior of Copper Alloys

2014 ◽  
Vol 655 ◽  
pp. 89-94 ◽  
Author(s):  
Vincent Mann ◽  
Florian Hugger ◽  
Stephan Roth ◽  
Michael Schmidt
Keyword(s):  
Laser Light ◽  
Copper Alloys ◽  
Laser Beam Welding ◽  
Inert Gases ◽  
Heating Process ◽  
Atmospheric Conditions ◽  
Temperature Dependent ◽  
Dependent Absorption ◽  
Welding Processes ◽  
Optical Behavior

Quantitative measured values for absorption of copper and its alloys are jet unknown in the temperature range between 30 °C and 500 °C which has to be passed before material melts in the initial phase of laser beam welding. Thus this paper investigates temperature and wavelength dependent absorption for VIS and IR wavelengths. For this purpose specimens of copper and copper alloys are heated up and reflected laser light from the surface is measured by using an Ulbricht sphere in combination with a photodiode. During welding processes inert gases are in use to reduce oxidation. Hence the influence of shielding gases on the absorption will also be taken into account during the heating process of the specimens. Consequently this paper provides results for the temperature dependent absorption of copper and copper alloys for different wavelengths at atmospheric conditions and argon shielding.

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