发明名称 |
METHOD OF PREPARATION OF SOLUTION-MELT FOR GROWING MONOCRYSTALS beta-BaB2O4 |
摘要 |
FIELD: growing monocrystals; preparation of solution-melt for growing monocrystals beta-BaB2O4 in flux. SUBSTANCE: charge is produced by two-stage solid-phase synthesis through heating the barium carbonate, sodium carbonate and boric acid at temperature of 180-200 C for 16-20 h and at temperature of 680-700 C for 8 h. Solution-melt may be used repeatedly if main compound - barium metaborate is added to solution-melt after each growth cycle; mass of barium metaborate is equal to mass of grown crystal. Barium metaborate is produced by two-stage solid-phase synthesis from mixture of barium carbonate and boric acid in accordance with modes of conducting solid-phase synthesis of charge; temperature at second stage ranges from 780 to 800 C. EFFECT: simplification of method; enhanced regeneration of preset composition of solution-melt. 2 cl, 2 ex
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申请公布号 |
RU2195520(C1) |
申请公布日期 |
2002.12.27 |
申请号 |
RU20010125225 |
申请日期 |
2001.09.13 |
申请人 |
INSTITUT MINERALOGII I PETROGRAFII SO RAN |
发明人 |
KONONOVA N.G.;KOKH A.E. |
分类号 |
C30B9/12;C30B29/10;(IPC1-7):C30B9/12 |
主分类号 |
C30B9/12 |
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代理人 |
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地址 |
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