2014 Fiscal Year Final Research Report
Studies on crystal behavior in storm glass
| Project/Area Number |
24540415
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Mathematical physics/Fundamental condensed matter physics
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| Research Institution | Meiji University |
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Principal Investigator |
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| Research Collaborator |
MITSUYA Takuro
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Keywords | 溶液成長 / カンファー / ストームグラス / 形態形成 / 温度変動 |
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| Outline of Final Research Achievements |
In the present study, the appearance of camphor crystals under cyclic temperature change in storm glass was studied. The precipitated crystals in the test tube showed the multi-layered pattern. It was found that each layer was originated from the different origin of formation processes such as initial nucleation, subsequent dendritic growth, nucleation in the solution above the dendrites, and the repetition of dendrite growth and nucleation. The analysis of each layer thickness as a function of elapsed time showed that the time dependence of layer thickness was categorized as four modes :constant, decay, pulse, oscillation depending on the origin of layer formation. According to the number of sample components, the related modes mentioned are different from each other. Thus, the complicated polycrystalline behavior under temperature change was characterized focusing on the time dependent layer thickness.
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| Free Research Field |
結晶成長学
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