首先测量了KDP溶液的亚稳区,并据此开展“点籽晶”KDP晶体快速生长实验.在实验中采用两种晶体运动方法-“二维平动法”和“旋转法”来生长晶体,分别得到尺寸为55 mm×55 mm×48 mm和60 mm×60 mm×45 mm的晶体.将两种运动方式生长的晶体通过透过光谱,锥光干涉图以及化学腐蚀方式进行质量对比.结果表明,两种方式生长的晶体透过光谱没有太大区别,都具有较高的透过率,但“二维平动法”生长的晶体具有较好光学均匀性,位错密度明显降低.说明“二维平动法”生长晶体的方式能够减少晶体内部缺陷,提高晶体质量.
参考文献
| [1] | 鲁智宽.溶液循环流动法生长大尺寸KDP晶体[J].人工晶体学报,1996(01):19. |
| [2] | Zhou YM.;Derby JJ. .THREE-DIMENSIONAL COMPUTATIONS OF SOLUTION HYDRODYNAMICS DURING THE GROWTH OF POTASSIUM DIHYDROGEN PHOSPHATE .1. SPIN UP AND STEADY ROTATION[J].Journal of Crystal Growth,1997(3/4):497-509. |
| [3] | Harry F.Robey;Dan Maynes .Numerical simulation of the hydrodynamics and mass transfer in the large scale, rapid growth of KDP crystals. Part 1: Computation of the transient, three-dimensional flow field[J].Journal of Crystal Growth,2001(1/2):263-278. |
| [4] | H.F. Robey .Numerical simulation of the hydrodynamics and mass transfer in the large scale, rapid growth of KDP crystals―2: computation of the mass transfer[J].Journal of Crystal Growth,2003(4):388-403. |
| [5] | Robey HF.;Summerhays KD.;Potapenko SY. ."Bending" of steps on rapidly grown KH2PO4 crystals due to an inhomogeneous surface supersaturation field[J].Journal of Crystal Growth,2000(3/4):340-354. |
| [6] | Peter G. Vekilov;J. Iwan D. Alexander;Franz Rosenberger .Nonlinear response of layer growth dynamics in the mixed kinetics-bulk-transport regime[J].Physical review.E.Statistical physics, plasmas, fluids, and related interdisciplinary topics,1996(6):6650-6660. |
| [7] | S. Balamurugan;P. Ramasamy .Bulk Growth Of <101> Kdp Crystal By Sankaranarayanan-ramasamy Method And Its Characterization[J].Materials Chemistry and Physics,2008(1):1-4. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%