Hydrogen-induced new functions in sub-nano lattice matter

Atsunori Kamegawa, Jun Nakahigashi, Akira Yamaguchi, Asaya Fujita, Miho Yamauchi, Hiroshi Kitagawa, Masuo Okada

研究成果: Article

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This paper includes some results of "Hydrogen-Induced New Functions in Sub-Nano Lattice Matters" accomplished by MEXT's program "Elements strategy Project". In the 21st century, the era concerning about environment, this research achieve- ment utilizing hydrogen as the technology for strengthening alloys will be expected to make a breakthrough in the metal heat- treatment and processing technology as the new environmental conscious process. Hydrogen heat-treatments for grain-size refinements of alloys were performed. The grain size of Cu-3 mass%Ti alloy turned into about 20~50 nm after hydrogenation and dehydrogenation treatment. Moreover, grain-size refined Ti-based alloy showed large super-elastic elongation. On the other hand, hydrogen induced functions in the alloys were also investigated. Hydrogen transmitting films with Pd nanogranular parti- cles dispersed in ceramic material were developed as attachment of metal-hydride switchable mirrors. Metamagnetism transition temperature (Tc) could be increased by hydrogen introduction in La (Fe xSi 1-x) Pd/Pt core-shell type nano-particles were also investigated.

元の言語English
ページ(範囲)141-150
ページ数10
ジャーナルNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
73
発行部数3
DOI
出版物ステータスPublished - 2009 3 1

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

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