基于化学键合的角度对晶体生长过程的理解,提出了一个由动力学因素控制的形貌预测模型.该模型同时考虑了晶体内部结构和环境生长因素对晶体最终形貌的影响.对磷酸二氢钾 (KDP) 和磷酸二氢铵 (ADP) 晶体在不同动力学条件下的生长形貌进行了理论模拟,所预测的结果与实验观测结果基本一致.同时比较了相同过饱和度条件下KDP和ADP晶体的生长形貌,认为晶体局部成键性质不同是导致两者形貌差异的根本原因.本文通过对动力学因素控制的生长形貌的分析,为实际晶体生长过程中的形貌调控研究及应用提供理论依据.
参考文献
| [1] | Piana S;Reyhani M;Gale J D .Simulating Micrometre-scale Crystal Growth from Solution[J].Nature,2005,438:70-73. |
| [2] | Donnay J D H;Harker D .A New Law of Crystal Morphology Extending the Law of Bravais[J].American Mineralogist,1937,22:446-467. |
| [3] | Hartman P;Bennema P .The Attachment Energy as a Habit Controlling Factor.Ι.Theoretical Conciderations[J].Journal of Crystal Growth,1980,49:145-156. |
| [4] | Xu DL;Xue DF .Chemical bond analysis of the crystal growth of KDP and ADP[J].Journal of Crystal Growth,2006(1):108-113. |
| [5] | Xu DL;Xue DF;Ratajczak HY .Morphology and structure studies of KDP and ADP crystallites in the water and ethanol solutions[J].Journal of Molecular Structure,2005(1/3):37-45. |
| [6] | 许东利,薛冬峰.结晶生长的化学键合理论[J].人工晶体学报,2006(03):598-603,650. |
| [7] | Dongli Xu;Dongfeng Xue .Computational study of crystal growth habit and cleavage[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2008(1/2):353-356. |
| [8] | Xue DF;He XK .Dopant occupancy and structural stability of doped lithium niobate crystals[J].Physical review, B. Condensed matter and materials physics,2006(6):4113-1-4113-7-0. |
| [9] | Zhang X;Xue D .Bond Energy Prediction of Curie Temperature of Lithium Niobate Crystals[J].Journal of Physical Chemistry B,2007,111:2587-2590. |
| [10] | Xu DL;Xue DF .Morphology control of KDP crystallites[J].Physica, B. Condensed Matter,2005(1/4):84-89. |
| [11] | Yali He;Dongfeng Xue .Bond-Energy Study of Photorefractive Properties of Doped Lithium Niobate Crystals[J].The journal of physical chemistry, C. Nanomaterials and interfaces,2007(35):13238-13243. |
| [12] | Itoh K;Uchimoto M .Forty Crystal Structure Analysis of K2H2PO4 in the Paraelectric Phase[J].Ferroelectrics,1998,217:155. |
| [13] | Peres N;Souhassou M;Wyncke B et al.Neutron Diffraction Study of the Paraelectric Phase of Ammonium Dihydrogen Phosphate (ADP):Hydrogen Bonding of (NH+4)[J].Journal of Physics:Condensed Matter,1997,9:6555-6562. |
| [14] | de Vries SA.;Bennett SL.;Huisman WJ.;Zwanenburg MJ. Smilgies DM.;De Yoreo JJ.;van Enckevort WJP.;Bennema P.;Vlieg E.;Goedtkindt P. .Surface atomic structure of KDP crystals in aqueous solution: An explanation of the growth shape[J].Physical review letters,1998(10):2229-2232. |
| [15] | Joshi M S;Paul B K .Effect of Supersaturation and Fluid on the Habit and Homogeneity of Potassium Dihydrogen Phosphate Crystals[J].Journal of Crystal Growth,1974,22:321-327. |
| [16] | 许东利,薛冬峰.ADP晶体的化学键和微观生长规律[J].人工晶体学报,2005(05):823-827. |
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