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Nano Structure Characterization

Understanding and improving the macroscopic properties of materials requires a full knowledge of their nanoscale compositional and structural information. In addition to atomic arrangements, the local chemical composition, bonding nature and electronic structure of materials we use daily have significant effects on our lives. In our laboratory, we acquire this information from various advanced materials such as ceramics, superconductors, alloys and ferrous metals, and use it to improve their macroscopic properties with various characterization methods.

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Giant Strain Process (GSP) produces high-density lattice defects within metallic materials that refine the grain size to the sub-micrometer or nanometer range. GSP studies are conducted by making use of high-density lattice defects to enhance both strength and ductility. This offers a significant advantage over conventional strengthening processes because GSP requires no addition of alloying elements. The absence of this addition means improved recyclability, as well as a reduction of energy consumption and the resultant CO2 emissions.


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(a) A low-magnification cross-sectional TEM image of GdBCO and (b) a reconstructed 3D image from a similar field of view. Image (c) illustrates the angular distribution of 150 1D-APCs from the thin-plate specimen, where the c-axis represents the growth direction of the matrix and Θ is the declination angle from the c-axis.


Nano Structure Characterization Team,
Department of Materials Science and Engineering,
Graduate School of Engineering, Kyushu University
Professor Zenji Horita
Professor Kenji Kaneko
Associate Professor Shinji Munetoh
Associate Professor Ryo Teranishi
Associate Professor Yukio Sato
Assistant Professor Makoto Arita
Assistant Professor Yoshifumi Ikoma
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