24 March 2017 Ultrafast postprocessing of yttrium aluminum garnet ceramics via femtosecond pulse laser irradiation
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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 YAlO 3 and Al 2 O 3 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.
© 2017 Society of Photo-Optical Instrumentation Engineers (SPIE)
Daniel W. Steere, Daniel W. Steere, Priyatham Tumurugoti, Priyatham Tumurugoti, Shanmugavelayutham K. Sundaram, Shanmugavelayutham K. Sundaram, } "Ultrafast postprocessing of yttrium aluminum garnet ceramics via femtosecond pulse laser irradiation," Optical Engineering 56(3), 037108 (24 March 2017). https://doi.org/10.1117/1.OE.56.3.037108 . Submission: Received: 25 November 2016; Accepted: 13 March 2017
Received: 25 November 2016; Accepted: 13 March 2017; Published: 24 March 2017
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