The direct observation of lattice distortion using aberration corrected high-resolution transmission electron microscope
| Project/Area Number |
24686079
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Partial Multi-year Fund |
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| Research Field |
Structural/Functional materials
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| Research Institution | Kyushu University |
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Principal Investigator |
TANAKA Masaki 九州大学, 工学(系)研究科(研究院), 准教授 (40452809)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥23,790,000 (Direct Cost: ¥18,300,000、Indirect Cost: ¥5,490,000)
Fiscal Year 2014: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2013: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2012: ¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000)
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| Keywords | 転位 / 電子顕微鏡 / 破壊 / 高分解能透過電子顕微鏡法 / 亀裂 / HRTEM / 弾性歪 / GPA |
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| Outline of Final Research Achievements |
Fracture of materials induces catastrophic accident so that it is essential to prevent the fracture in order to increase the reliability of the materials in use. In this study, the stress field which is due to the internal stress of dislocations was obtained around a crack tip, measuring the shift of lattice points from their equilibrium positions. The existence of shielding field which is theoretically expected around the crack tip was experimentally cleared in an atomistic scale.
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Report
(4 results)
Research Products
(13 results)
