329 複合機能化センサ・アクチュエータ薄板・繊維要素材料作成のための液体急冷加工プロセス装置開発とその材料特性(OS 多機能・複合機能化への材料協調設計)

概要

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The rapid-solidification machine to produce the composite fillers having multi-functional material elements of sensor/actuator was developed. This machine which is called as "melt-spinning and melt extraction using a high frequency and an arc furnace" can make the fine fibers (diameter=20〜100 μm) as well as foils(thickness=30〜60μm) with unique microstructures by rapid-solidification. Shape memory alloy(SMA) ribbons of TiNi and forromagentic FeNi SMA fibers could be produced. Moreover, Al_<85>Ni_<10>Ce_5, Ti_<40>Zr_<10>Cu_<50> and Zr_<65>Al_<10>Cu_<15>Ni_<10> amorphous wires were produced by more rapid-solidification speed. The wires have a circular cross section and a smooth peripheral surface, but small flaws are observed on the surface. The structure of the amorphous alloy wires is nearly the same as that of the melt-spun amorphous ribbons by SEM observation and X-ray diffraction analysis. The shape memory effect and mechanical properties were improved by rapid-solidification.
2000-11-24