Mutual impact of crystal volume and heat of alloy formation on hydride stabilities in Zr(PdxCr1−x)2 and similar intermetallics

D. Babai, M. Bereznitsky, R. Z. Shneck, I. Jacob

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Hydrides of Zr(PdxCr1−x)2 pseudobinary compounds (x = 0.05, 0.1, 0.175) exhibit slight destabilization and more sloped hydrogen plateau pressures with the increase of the palladium content. The former feature conforms to the rule of reverse stability but violates the trend of increased hydride stability upon increasing the unit cell intermetallic volume. A combination of the two effects, the heat of alloy formation and the crystal volume, shows better correlation with the hydride stabilities than considering separately each property. Hydrogen absorption is found in ZrPd2 at ∼60 atm and associated with its moderate shear modulus.

Original languageEnglish
Article number152268
JournalJournal of Alloys and Compounds
Volume814
DOIs
StatePublished - 25 Jan 2020

Keywords

  • Correlation with heat of alloy formation and unit cell volume
  • Hydrogen absorbing materials
  • Hydrogen absorption in the “hydrogen-inert” ZrPd
  • Zr(PdCr) pseudobinary intermetallic compounds

ASJC Scopus subject areas

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

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