Production of High-Performance Multifunctional Materials

Research

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Production of High-Performance Multifunctional Materials

Overview

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Ultrafine Grain Refinement
by Giant Straining Process
Ductility Enhancement
without Losing Strength Decrease

We produce high-performance multifunctinal materials using Giant Straining Process (GSP) through a top-down approach and/or using chemical and physical vapor deposition processes through a bottom-up approach. Nanocrystalline structures are produced in various metals and alloys including composites and semiconductors. The study aims to develop materials having high performance not only in mechanical properties but also in electric, magnetic and photic properties. The devlopment uses electron microscopy, XRD analysis including devices for characterization, evaluation and measurements. The research using GSP includes high strength and high ductility by nonocrystalization, consolidation of metallic powders and composites, solid-state sysnthesis due to high-density lattice defects produced by GPS. Band gaps in semiconductors is cotrolled by nanocrystallization so that a photoluminecence effect is enhanced. Thin film technology is also introduced in order to control the surface photo-induced superhydrophilicity.

Staff

Professor Zenji Horita
Assistant Professor Makoto Arita
Assistant Professor Yoshifumi Ikoma
Technical Assistant Tomoko Kotake

The Main Research Topics

  • Production of nanostructured materials and multifunctional properties using giant straining process
  • Hydrogen behavior in materials containing high-density lattice defects
  • Nanocrystalization of semiconductors for photoluminescence
  • Synthesis of high-performance photo-catalytic and hydrophilic thin films
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