Formation of amorphous phase of R3In and R2In intermetallic compounds by hydrogenation

X. G. Li, A. Chiba, K. Aoki, T. Masumoto

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Phase transformation of R3In (R = La, Ce, Pr, Nd) and R2In compounds (R = La, Ce, Pr, Nd, Sm, Gd, Dy, Tb, Ho, Er) by hydrogenation were investigated by X-ray Diffractometry (XRD), Transmission Electron Microscopy (TEM) and Differential Scanning Calorimetry (DSC). Hydrogen-Induced Amorphization (HIA) has been observed in these compounds below 473 K. By hydrogenation at higher temperature, these compounds decompose into RH2 and RIn3. Hydride with the original crystal structure has not been obtained. The HIA behavior of R-In compounds and the crystallization behavior of the amorphized alloys are similar to those of R3Ga and R-Al compounds, and are different from those of the C15 Laves compounds RM2.

Original languageEnglish
Pages (from-to)294-298
Number of pages5
JournalMaterials Science and Engineering A
Volume241
Issue number1-2
DOIs
Publication statusPublished - 1998 Jan
Externally publishedYes

Keywords

  • Amorphous
  • Hydrogenation
  • Intermetallic compounds
  • Phase transformations
  • X-ray diffraction

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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