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Study on rapid growth of highly‐deuterated DKDP crystals
Author(s) -
Wang S. L.,
Gao Z. S.,
Fu Y. J.,
Duan A. D.,
Sun X.,
Fang C. S.,
Wang X. Q.
Publication year - 2003
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.200310117
Subject(s) - supersaturation , monoclinic crystal system , tetragonal crystal system , solubility , nucleation , chemistry , crystallography , deuterium , chemical engineering , materials science , crystal structure , organic chemistry , physics , quantum mechanics , engineering
Highly‐deuterated potassium dihydrogen phosphate (DKDP) crystals were grown rapidly from point seeds under high supersaturation in a temperature range of 40‐60 °C. The growth rate was about 1‐2 order of magnitude higher than that of the traditional temperature reduction method. It was found that highly pure raw materials, overheating at high temperature, ultrafine filtration and supersaturation stability were needed to keep the solution from spontaneous nucleation at high overcooling. The effect of growth conditions on pyramid faces was different from that of prismatic faces. The tetragonal to monoclinic phase solubility transition scarcely occurred in our experiments even though the overcooling of monoclinic phase was as high as 10 °C in some cases. (© 2003 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)