Structure of nano-crystalline FeTiDx by neutron and X-ray diffraction

K. Itoh, H. Sasaki, H. T. Takeshita, K. Mori, T. Fukunaga

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Complementary studies by neutron and X-ray diffraction were performed to elucidate the location of deuterium atoms in nano-crystalline FeTiDx. Remarkable rearrangement of the metal atoms due to the deuterium absorption was observed in the pair distribution functions, g(r), obtained by X-ray diffraction. The result indicates that disordered grain boundary is developed through the deuterium absorption. The g(r) function obtained by neutron diffraction indicates the occurrence of two types of deuterium sites located inside the grains and in the grain boundaries, respectively. The deuterium atoms in the grain boundaries occupy tetrahedral sites consisting mainly of Ti atoms.

Original languageEnglish
Pages (from-to)95-98
Number of pages4
JournalJournal of Alloys and Compounds
Volume404-406
Issue numberSPEC. ISS.
DOIs
Publication statusPublished - Dec 8 2005
Externally publishedYes

Keywords

  • Hydrogen storage materials
  • Nanostructures
  • Neutron diffraction
  • X-ray diffraction

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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