FAST GROWTH AND EVALUATION OF POTASSIUM DIHYDROGEN PHOSPHATE SINGLE-CRYSTALS BY ELECTRODIALYSIS WITH PH CONTROL

被引：3
|
作者：
SHIMOMURA, O
机构：
[1] Faculty of Engineering, Yamanashi University, Kofu, 400, 3-11
来源：
JOURNAL OF CRYSTAL GROWTH | 1994年 / 144卷 / 3-4期
关键词：
D O I：
10.1016/0022-0248(94)90464-2
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
A novel technique of pH control is proposed in the electrodialysis method of a three-chamber structure. This technique allows using small-sized equipment for the growth of large potassium dihydrogen phosphate (KDP) single crystals. High-quality KDP crystals can be grown at a growth rate of 3 mm/day. Larger growth rates cause spontaneous nucleation, which can be suppressed using a solution doped with 0.3 ppm Cr3+ and 1.5 ppm Al3+. As a result of doping, good optical quality single crystals could be grown at a growth rate of 6.6 mm/day, and the unwanted spontaneous nucleation was suppressed.
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页码：253 / 257
页数：5
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