Flux growth, composition, structural and thermal characteristics of RxY1-xAl3(BO3)4 crystals (R=Nd,Gd; x=1, 0.6, 0.65, 0.7 and 0.75)статья
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Дата последнего поиска статьи во внешних источниках: 29 мая 2015 г.
Аннотация:(RxY1−x)Al3(BO3)4 (R=Nd, Gd; x=1, 0.6, 0.65, 0.7 and 0.75) single crystals have been grown from fluxed melts. The segregation coefficients of neodymium and gadolinium were estimated to be 0.66–0.92 and 0.88–1.03, respectively. This coefficient increases with an increase of R2O3/Y2O3 ratio in the initial mixture. The (Nd0.63Y0.37)Al3(BO3)4 structure was refined. The thermal behavior of the above borates was studied in the temperature range of 940–1030°C. Among the decomposition products, the crystalline aluminoborates Al4B2O9, Al18B4O33 and rare earth borates RBO3 were determined.