Growth of KDP: Fe3+ Crystals from Oversaturated Aqueous Solutions

被引：6
|
作者：
Manomenova, Vera [1 ]
Rudneva, Elena [1 ]
Baskakova, Svetlana [1 ]
Voloshin, Alexey [1 ]
机构：
[1] Russian Acad Sci, Shubnikov Inst Crystallog, Fed Sci Res Ctr Crystallog & Photon, Moscow 119333, Russia
来源：
CRYSTALS | 2019年 / 9卷 / 12期
关键词：
growth from solution; KDP; impurity; supersaturation; X-ray topography; POTASSIUM DIHYDROGEN PHOSPHATE; RAPID GROWTH; SURFACE-MORPHOLOGY; NUCLEATION; IMPURITIES; KINETICS; KH2PO4; FACES; IONS; ADP;
D O I：
10.3390/cryst9120646
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
The KH2PO4 solubility curves in pure water and in water with the addition of 50 ppm Fe3+ were refined. The KH2PO4 and KH2PO4: Fe3+ solutions stability to supercooling was evaluated by polythermal studies of the width of metastable zone. It was shown that Fe3+ addition makes the solution more stable. A series of Fe3+ doped KDP crystals were grown at different temperature and hydrodynamic regimes at supersaturation level up to 0.45. Their real structure was studied by X-ray projection topography and, as a result, the most suitable growth conditions are chosen. The transmittance spectra of prism sectors with ferric iron concentrations C-Fe up to 102 ppm were obtained. It was found that KDP crystals with C-Fe >60 ppm can be used as optical filters for suppressing transmission in UV-C and UV-B ranges.
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页数：14
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