2015 Fiscal Year Final Research Report
Preparation of the indentation microscope in order to evaluate glass brittleness
| Project/Area Number |
25420713
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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 |
Inorganic materials/Physical properties
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| Research Institution | The University of Shiga Prefecture |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Keywords | インデンテーション / ガラス / 弾性 / 塑性 / クラック |
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| Outline of Final Research Achievements |
The indentation microscope with high resolution was prepared in order to observe deformation behavior of glass during indenation. Using this set-up, the indentation load, the indentation depth, the contact area, and the sinking-in depth were successfully determined during the loading-unloading indentation cycle. It is found that indentation response of glass depends on the ratio of hardness to modulus, and that the blunter indenter results in the more elastic response of glass under the indenter. This new finding enables us to explain a relationship between deformation behavior of glass under an indenter and cracking behavior of the glass during and/or after the indentation.
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| Free Research Field |
無機材料化学
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