2015 Fiscal Year Final Research Report
Chemical and mechanical modification of nano/micro-structures at surfaces of ionic crystals
| Project/Area Number |
24510144
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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 |
Nanostructural science
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| Research Institution | Chuo University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
NIKI KAORI 千葉大学, 大学院融合科学研究科, 助教 (10548100)
IMURA KURARA 中央大学, 理工学部, 助教 (60707107)
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| Project Period (FY) |
2012-04-01 – 2016-03-31
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| Keywords | 摩擦・磨耗 / 結晶力学 / 結晶表面 / 結晶形態 / 原子間力顕微鏡 / 界面活性剤 |
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| Outline of Final Research Achievements |
In order to understand the mechanism of friction through atomic to micrometer scales, various single crystal surfaces were scrathced with a saphire stylus in different directions. Observation of wear patterns formed using optical and atomic force microscopies revealed the mechanisms of activation of plastic deformation modes including slip, cleavage and twinning, depending upon the direction and the strength of applied load, and the location relative to the position of the stylus.
To understand why crystals grow in different polyhedral forms depending upon environments, stabilities of crystal faces were compared by observing micro-sized etch pits formed in dissolution experiments. Crystal shapes of nano- and micro-crystals were controlled by the addition of functional molecules which adsorb selectively upon specific crystal faces.
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| Free Research Field |
ナノ・マイクロ科学
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