Professor
Shigeru Suzuki
Associate Professor
Kozo Shinoda
Assistant Professor
Toru Kawamata
Assistant Professor
Shun Fujieda
Assistant Professor
Reiko Shimura

Keywords
Major Grad.Sch. of Engineering
Web Site http://www.tagen.tohoku.ac.jp/labo/suzuki/index.html

Microstructural characterization and control of functional alloys and oxides

Characterization and control of microscopic composition and structure are important in improvement of performances of advanced alloys and oxides having superior properties. In this laboratory, various analytical methods using photons, electrons and ions are applied for characterizing the microscopic chemical composition and structure of the advanced materials. Technological processes for improving performances of the advanced materials are designed on the basis of the results. Main subjects are characterization and control of the structure of various metal particles and iron oxides using advanced methods, control of microstructure and texture in novel alloys.Microstructural characterization and control are important in development of advanced alloys and oxides having superior properties. In this laboratory, various analytical methods using photons, electrons and ions are applied for characterizing the microscopic chemical composition and structure of these materials. Processes for improving performances of the advanced materials are designed on the basis of the results. Main subjects are characterization and control of the structure of various metal particles and iron oxides using advanced methods, and control of microstructure and texture in novel alloys. Fig.1 shows a microstructure of a deformed shape memory alloy, in which a part (blue color) of the fcc structure was transformed to the hcp structure (orientation relationship in Fig.2). The transformation preferentially occurs in grains with specific orientation.Figure 1 shows microstructure of a deformed shape memory alloy, in which a part of matrix is transformed to the martensitic phase (see Fig.2).

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