| Project/Area Number |
23656085
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Materials/Mechanics of materials
|
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| Research Institution | Kyoto University |
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Principal Investigator |
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| Project Period (FY) |
2011 – 2012
|
| Project Status |
Completed (Fiscal Year 2012)
|
| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2011: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Keywords | ナノワイヤ / 引張試験手法 / 単結晶 / 単一すべり / 透過型電子顕微鏡 / ナノ / 引張試験 / 寸法効果 |
|---|
| Research Abstract |
A new tensile test method was developed and was applied to a single crystalline gold nanowire with a square section of 189 nm. The nanowire, which was mounted on a lozenge-shaped silicon frame, was pulled by a compressive load on the top face of the frame. Although the applied load increased monotonically in the early stages of deformation, it dropped rapidly at a certain displacement. In-situ TEM observation indicated that the rapid decrease was due to crystallographic slip generation. The critical resolved shear stress at yielding was evaluated to be 325.8 MPa, which was about 600 times larger than that of bulk.
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