Crystal Research and Technology
Copyright © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Editor: Wolfgang Neumann (Editor-in-Chief), Klaus-W. Benz (Consulting Editor)
Online ISSN: 1521-4079
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Recently Published Articles
- Morphology analysis of magnesium hydroxide prepared by magnesium oxide hydration within seawater
Xiaojia Tang, Lin Guo, Quan Liu, Yeye Li, Tie Li and Yimin Zhu
Article first published online: 5 MAR 2015 | DOI: 10.1002/crat.201400122
The MgO hydration product was obtained by reacting with seawater under three-phase reaction condition. The particle was hexagon, displaying flower-like morphology and intergrowth of platelets. It is with the ionic effect that the product appears as the figure shown. Furthermore, there existed some fine crystals which adhered to the lager particle. We deduced that the fine crystals were MH which peeled off from the MgO.
- Selective etching of ZnTe in HF:H2O2:H2O solution: Interpretation of extended defect-related etch figures
Rui Yang and Wanqi Jie
Article first published online: 5 MAR 2015 | DOI: 10.1002/crat.201400265
40%wt.HF:30wt.%H2O2:H2O (3:2:1 by volume) solution shows strong orientation and phase selectivity, it is also very sensitive to impurity decorated defects, thus can effectively reveal various extended defects (line, face and volume defects) of ZnTe crystals. In addition, smaller size texture pits are also produced on the defect-free regions, which serve as reference standard pits during the analysis of defect-related etch figures.
- Formation of longitudinal aggregation of inclusions in bulk sapphire and yttrium-aluminum garnet grown by horizontal directed crystallization method
S. V. Nizhankovskyi, A. V. Tan'ko, N. S. Sidelnikova and G. T. Adonkin
Article first published online: 5 MAR 2015 | DOI: 10.1002/crat.201400430
At the growth of sapphire and yttrium-aluminum garnet by the method of horizontal directed crystallization, longitudinal aggregation of inclusions located along the growth direction may be formed in the crystals. Such an effect is shown to be caused by the formation of two-vortex convection of the melt that leads to local increase of the thickness of the diffusion layer and capture of inclusions by crystallization front. Considered is the influence of the thermal conditions of the growth and the geometrical parameters of the melt zone on the formation of longitudinal aggregation of inclusions.
- Electrospinning synthesis and photocatalytic property of CaFe2O4/MgFe2O4 heterostructure for degradation of tetracycline
Meng Li, Hong-Ye Bai, Zu-Lin Da, Xu Yan, Chao Chen, Jin-Hui Jiang, Wei-Qiang Fan and Wei-Dong Shi
Article first published online: 5 MAR 2015 | DOI: 10.1002/crat.201400447
CaFe2O4/MgFe2O4 nanowires have been successfully designed and prepared by electrospinning method. The obtained nanowires showed enhanced photocatalytic activity for degrading of tetracycline (TC) under visible light, which could be attributed to the heterostructure of CaFe2O4/MgFe2O4 nanowires that repressed the recombination of photo-generated electrons and holes.
- Bridgman growth and characterization of birefringent crystal NaNO3
Wei Xiong, Liang Chen, Lingxiong Huang, Feiyun Guo, Yao Zhou and Hui Yuan
Article first published online: 5 MAR 2015 | DOI: 10.1002/crat.201400449
High quality NaNO3 single crystals with size of Φ20×100mm3 were grown by Bridgman method. The principal refractive indices of NaNO3 crystal were measured and the corresponding Sellmeier's equation was obtained by auto-collimation method. NaNO3 crystal demonstrates its better birefringent property. The transmittance and photoluminescence properties were also discussed in this paper.