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A technique for modifying the crystalline structure of a metallic microwire is introduced. The technique involves passing current through the wire via two electrical probes causing local Joule heating. We used this technique to heat a 25-µm-diameter Cu wire for 1 h at 573 K. The yield stress of the wire after modification was evaluated by a mechanical bending test and it was confirmed that the wire had softened after the process. We also performed heat treatment of a wire in a furnace and the properties of the wires modified by the two different methods were compared.

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A large-scale materials database including literature and factual data, which is under construction at the Institute for Materials Research, Tohoku University is introduced featuring the collections of ternary amorphous formation phase diagrams. The database is arranged as a multimedia type, including both text and images, which is especially important in materials research. The object-oriented method is also applied to construct the database so it can predict new compositions to form an amorphous phase from existing data.

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