| Al3+掺杂对KDP晶体生长习性的影响 |
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| 引用本文： | 卢永强,王圣来,许心光,孙洵,顾庆天,牟晓明,刘冰.Al3+掺杂对KDP晶体生长习性的影响[J].硅酸盐通报,2009,28(4):631-635. |
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| 作者姓名： | 卢永强 王圣来 许心光 孙洵 顾庆天 牟晓明 刘冰 |
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| 作者单位： | 山东大学晶体材料研究所,济南,250100 |
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| 摘 要： | 溶液中微量Al3+对KDP(磷酸二氢钾)晶体生长具有多方面的影响.本文通过传统降温法和"点籽晶"快速生长法生长了Al3+离子掺杂的KDP晶体,并通过激光偏振法实时测量了晶体柱面的生长速度和死区.实验表明,当Al3+掺杂浓度小于20×10-6 ppm时可提高溶液的稳定性,并抑制柱面的扩展;而当浓度高于20×10-6 ppm时会使传统法生长的晶体发生明显的"楔化",成帽区延长,快速法生长的晶体变得细长;高浓度(>50×10-6 ppm)时溶液稳定性遭到破坏,晶体出现开裂、包藏等宏观缺陷.KDP晶体的表面形貌也随掺杂发生改变.
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| 关 键 词： | KDP晶体 Al3+离子 晶体生长 生长习性 |
Effects of Al~(3+) Ion on the Growth Habit of KDP Crystals |
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| LU Yong-qiang,WANG Sheng-lai,XU Xin-guang,SUN Xun,GU Qing-tian,MO Xiao-ming,LIU Bing.Effects of Al~(3+) Ion on the Growth Habit of KDP Crystals[J].Bulletin of the Chinese Ceramic Society,2009,28(4):631-635. |
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| Authors: | LU Yong-qiang WANG Sheng-lai XU Xin-guang SUN Xun GU Qing-tian MO Xiao-ming LIU Bing |
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| Affiliation: | LU Yong-qiang,WANG Sheng-lai,XU Xin-guang,SUN Xun,GU Qing-tian,MO Xiao-ming,LIU Bing(Crystal Materials Research Institute,Shandong University,Jinan 250100,China) |
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| Abstract: | Potassium dihydrogen phosphate(KDP)crystals were grown in the presence of Al3+ impurities via conventional temperature cooling method and rapid growth method,respectively.The growth rate of the prismatic face of KDP crystals was measured using a laser-polarization-interference technique.Experiments showed that Al3+ doped would increase the critical supersaturation and reduce the growth rate of prismatic face,and make KDP crystals tapering in conventional temperature cooling method.In very high impurity conc... |
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| Keywords: | KDP crystal Al3 ions crystal growth growth habit |
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