Synthesis and crystallization of lithium-yttrium orthoborate Li6Y(BO3)3 phase

Autor: K. Polgár, Ágnes Péter, M. Tóth
Rok vydání: 2012
Předmět:
Zdroj: Journal of Crystal Growth. 346:69-74
ISSN: 0022-0248
Popis: Single crystals of Li6Y(BO3)3 have been grown by both the Bridgman and Czochralski methods. It was found that the complex nature of the melt solidification s affects the efficiency of the crystallization process and the composition of the grown crystals. High supercooling favored melt dissociation and the formation of thermodynamically unstable phases Li3Y(BO3)2 and Li3Y2(BO3)3. Applying X-ray phase analysis for air-quenched ceramic samples it was shown that the room temperature stability region of the off–stoichiometric Li6Y(BO3)3 phase is extended towards the B2O3 rich, Y2O3 deficient compositions.
Databáze: OpenAIRE