Product Code: ICA11_1101
Laser Diffusion in Metals for Material Modification
Sen-Yong Chen, Creol, University of Central Florida; Orlando FL USA
Othmane Benafan, Ampac, Mechanical, Materials, and Aerospace Engineering, University of Central Florida; Orlando FL USA
Rajan Vaidyanathan, Ampac, Mechanical, Materials, and Aerospace Engineering, University of Central Florida; Orlando FL USA
Aravinda Kar, Creol, University of Central Florida; Orlando FL USA
Presented at ICALEO 2011
Traditionally laser diffusion has been used to modify the metallurgical composition at the surface of materials for improving the surface properties such as the hardness. The electromagnetic properties of materials can also be modified by this method to tailor the material response at different frequencies of the electromagnetic spectrum. We have diffused Pt into Ti and Ta sheets, and measured the transmitted magnetic field strength to determine the transmittance of the samples at 64 MHz. An electromagnetic model is developed to obtain properties such as the electrical conductivity and reflectivity of the laser Pt-diffused samples. These values for these properties are found to increase compared to the untreated samples. The effects of laser polarization on the electromagnetic properties of samples are also investigated. Possible applications of tailored electromagnetic surfaces include microelectronics, nanoelectronics and biomedical devices.
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