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, Priyatham Tumurugoti, 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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