Formation of amorphous and nanocrystalline alloys by hydrogenation of C15 laves RMn2

K. Kawahara, X. G. Li, K. Ishikawa, K. Suzuki, K. Aoki

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Abstract

The structural changes of C15 Laves RMn2 compounds were investigated using a pressure differential scanning calorimeter and an X ray diffractometer. Heating the hydrogenated crystalline alloys in a hydrogen atmosphere simultaneously formed amorphous and nanocrystalline alloys. The formation of the compounds was discussed on the basis of the activation energy for hydrogen absorption, HIA and crystallization.

Original languageEnglish
Pages (from-to)2019-2022
Number of pages4
JournalScripta Materialia
Volume44
Issue number8-9
DOIs
Publication statusPublished - 18 May 2001
Externally publishedYes

Keywords

  • Amorphous materials
  • Hydrogen
  • Phase transformations
  • X-ray diffraction

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