摘要
Ca^(2+)是KDP原料中一种常见的杂质离子,通过传统降温法和"点籽晶"快速生长法研究了Ca^(2+)离子对KDP晶体生长习性及性能的影响.实验表明,Ca^(2+)低浓度掺杂时对溶液的稳定性及生长过程没有明显的影响;高浓度时溶液稳定性有所降低,经常出现杂晶;快速生长时,晶体柱面易出现包藏,晶体的紫外透过呈下降趋势,晶体中散射颗粒密度随掺杂浓度的增加而增大.
Ca^2＋ ion is a kind of common impurity in the growth process of KDP crystal. Effect of Ca^2＋ ions on the growth habit and optical properties of KDP crystals were investigated. KDP crystals were grown from a solution containing certain quantity of calcium chloride by the traditional temperaturelowering method and by the ＂ point seed ＂ technique, respectively. The results show that there is no obvious effect on the stability of KDP growth solution and the process of KDP growth when the Ca^2＋ concentration in the solution is very small. When the Ca^2＋ concentration is high in the solution, the stability of KDP growth solution is lowered, and inclusions in the crystal often occur on the prismatic faces of KDP crystals grown by a ＂ point seed ＂ technique. The ultraviolet transmittance is descended and the density of scattering particles in the crystal is increased with the Ca^2＋ concentration in the solution.
出处
《无机材料学报》
SCIE
EI
CAS
CSCD
北大核心
2007年第6期1103-1107,共5页
Journal of Inorganic Materials
基金
国家"863-804"主题课题
山东省博士基金
国家自然科学联合基金(10676019)
