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Morphological Evolution during Synthesis of New AlPO4.H2O Crystal |
| CHEN Wan-Chun1,2;LIU Dao-Dan1,2;WANG YU-Ren2 |
| 1Institute of Physics, Chinese Academy of Sciences, Beijing 100080
2National Laboratory of Microgravity, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100080 |
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| Cite this article: |
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CHEN Wan-Chun, LIU Dao-Dan, WANG YU-Ren 2005 Chin. Phys. Lett. 22 2704-2707 |
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Abstract A new crystal of aluminophosphate, AlPO4.H2O, is synthesized from two-batch aqueous solution under hydrothermal conditions. Three types of the crystal habits, i.e. the tetragonal double pyramid, the tetragonal prism and the plate-type tetragonal prism, are found from batch-A solution. Two types of the crystal habits, i.e. the hexagonal pyramid and the strip-type tetragonal prism, are found from batch-B solution. The change of crystal morphology is originated from the fluctuation of the synthesis conditions, such as the supersaturation, the temperature and the impurity content. It causes change of the step energies, the defect density and the step roughness, and further, change of the growth rates. Since the crystal morphology is sensitive to the mass transport mechanism, the crystal habits could be changed under the microgravity.
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| Keywords:
81.10.Aj
81.10.Dn
81.10.Mx
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Published: 01 October 2005
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| PACS: |
81.10.Aj
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(Theory and models of crystal growth; physics and chemistry of crystal growth, crystal morphology, and orientation)
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81.10.Dn
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(Growth from solutions)
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81.10.Mx
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(Growth in microgravity environments)
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