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Yavetskiy R.P.,Scientific and Technological Corporation Institute for Single Crystals of NAS of Ukraine | Baumer V.N.,State Scientific Institution Institute for Single Crystals of NAS of Ukraine | Doroshenko A.G.,Scientific and Technological Corporation Institute for Single Crystals of NAS of Ukraine | Kopylov Y.L.,Russian Academy of Sciences | And 4 more authors.
Journal of Crystal Growth | Year: 2014

Processes of phase formation and densification during reactive sintering of YAG:Nd3+laser ceramics have been studied through the 2.88Y2O3-0.12Nd2O3-5Al2O3model powder system with a bimodal yttria particle size distribution. It has been found that utilization of submicron yttria powders can provide a competitive advantage of shrinkage over swelling processes by changing the kinetics of YAG phase formation. Excluding the swelling effect during densification allows one to produce YAG:Nd3+(4 at%) laser ceramics by reactive sintering with in-line optical transmission of about 80% at λ=650 for a 1 mm thick sample. © 2014 Elsevier B.V. Source

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