发现由五氧化二磷合成的KDP晶体生长原料中含有大量还原性亚磷酸盐杂质．实验表明，亚磷酸盐对晶体锥面生长有显著的抑制作用．低浓度时造成柱面扩展，在高浓度时则使整个晶体的生长速度变慢．这种原料以适当方法提纯后，用“点籽晶”技术进行快速生长实验，平均生长速度达到13．7mm／天．
The synthesis process of KDP material was analyzed and phosphite was found existing in the growth solution.
In the crystal growth experiments, significant extension was observed at low dopant concentration, but at higher concentration, the growth rate of the
whole crystal decreased with no significant change of the habit. The inhibiting effects of phosphite and other anionic ions on the
growth of pyramidal face was discussed. Rapid growth experiments was carried out with purified material and an averaged growth rate of 13.7mm/day was obtained.
It was proposed that the purity of the materials is the key factor for rapid growth of KDP crystals.
参考文献
| [1] | Zaitseva N P, rashkovich L N, Bogatyreva S V. J. Crystal. Growth, 1995, 148: 276--282. [2] Nakatsuka M, Fujioka K, Kanabe T, et al. J. Crystal. Growth, 1997, 171: 531--537. [3] Fujioka K, Matsuo S, Kanabe T, et al. J. Crystal. Growth, 1997, 181: 265--271. [4] Belout C, Dunia E, Petroff J F. J. Crystal. Growth, 1974, 23: 243--252. [5] Rashkovich L N, Kronsky N V. J. Crystal. Growth, 1997, 182: 434--441. [6] Fu Y-J, Gao Zh-Sh, Liu J-M, et al. J. Crystal. Growth, 1999, 198--199: 682--686. [7] 傅有君, 高樟寿, 刘嘉民等. 强激光与粒子束, 1998, 10 (1): 118--122. [8] Kuznetsov V A, Okhrimenko T M, Rak M. J. Crystal. Growth, 1998, 193: 164--173. [9] De Vries S A, Vlieg E, Goedtkindt P, et al. Abstracts of Twelfth Intern. Conf. on Cryst. Growth in Conjunction with Tenth Intern. Conf. on Vapor Growth and Epitaxy. Jerusalem, Israel, 1998. 143. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%