Materials, Photonic Devices, and Sensors

Ultrafast postprocessing of yttrium aluminum garnet ceramics via femtosecond pulse laser irradiation

[+] Author Affiliations
Daniel W. Steere, Priyatham Tumurugoti, Shanmugavelayutham K. Sundaram

Alfred University, Ultrafast Materials Science Laboratory (U-Lab), Department of Materials Science and Engineering, Alfred, New York, United States

Opt. Eng. 56(3), 037108 (Mar 24, 2017). doi:10.1117/1.OE.56.3.037108
History: Received November 25, 2016; Accepted March 13, 2017
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Abstract.  We studied rapid densification and homogenization of sintered yttrium aluminum garnet (YAG) ceramics via sintering followed by femtosecond pulse laser (800 nm) irradiation. We formed localized, high-density microstructures within a YAG ceramic matrix. The laser irradiated regions were characterized using scanning electron microscopy, elemental mapping, and x-ray diffraction. Our results show that phase separation of YAG into YAlO3 and Al2O3 can be obtained in situ within stoichiometric YAG. With an optimum laser power and processing conditions, this process can be used for producing dense YAG ceramics.

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© 2017 Society of Photo-Optical Instrumentation Engineers

Citation

Daniel W. Steere ; Priyatham Tumurugoti and Shanmugavelayutham K. Sundaram
"Ultrafast postprocessing of yttrium aluminum garnet ceramics via femtosecond pulse laser irradiation", Opt. Eng. 56(3), 037108 (Mar 24, 2017). ; http://dx.doi.org/10.1117/1.OE.56.3.037108


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