The direct observation of lattice distortion using aberration corrected high-resolution transmission electron microscope

2014 Fiscal Year Final Research Report

• Project/Area Number: 24686079
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Partial Multi-year Fund
• Research Field: Structural/Functional materials
• Research Institution: Kyushu University
• Principal Investigator: TANAKA Masaki 九州大学, 工学(系)研究科(研究院), 准教授 (40452809)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 転位 / 電子顕微鏡 / 破壊

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.

Free Research Field

結晶塑性