Title
Modulation of diffusion with polarized lasers
Abbreviated Journal Title
Appl. Phys. A-Mater. Sci. Process.
Keywords
PLATINUM; BEAMS; BASE; Materials Science, Multidisciplinary; Physics, Applied
Abstract
Laser diffusion is generally used to modify the metallurgical composition at the surface of materials for improving the mechanical properties. Platinum has been diffused into titanium and tantalum sheets in this study, and the concentrations of Pt in the substrates are determined. The concentration of Pt is higher at lower scanning speeds due to higher surface temperature and longer diffusion time than in the case of higher scanning speeds. Additionally, the samples treated with a linearly polarized laser beam exhibit slightly higher concentration of Pt. The enhanced diffusion in the case of linearly polarized laser treatment can be attributed to controlled excitation of the local vibration modes of the atoms in the substrate. The reflectivity of the samples are also measured at the wavelength of 1,064 nm and compared with theoretical results.
Journal Title
Applied Physics a-Materials Science & Processing
Volume
116
Issue/Number
2
Publication Date
1-1-2014
Document Type
Article
Language
English
First Page
703
Last Page
713
WOS Identifier
ISSN
0947-8396
Recommended Citation
"Modulation of diffusion with polarized lasers" (2014). Faculty Bibliography 2010s. 5166.
https://stars.library.ucf.edu/facultybib2010/5166
Comments
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