Hydriding kinetics of powders

Moshe H. Mintz, Yehuda Zeiri

Research output: Contribution to journalReview articlepeer-review

125 Scopus citations


Kinetic measurements of gas-solid reactions performed on powders, are usually interpreted according to single-particle analysis (SPA) models. The use of SPA functions is not a priori justified, since deviations from that functional dependence may occur in the powder, owing to three factors: (i) particle size distributions, (ii) particle shape variations and (iii) time distributions for the beginning of the reaction on each one of the particles composing the powder. The effects of these factors are quantitatively analysed and their interference in the SPA procedure is estimated. It is concluded that under certain circumstances the SPA can yield the correct reaction mechanism and even enables a reasonable estimate of the corresponding intrinsic kinetic parameters. This analysis is relevant generally to gas-solid kinetics, with particular emphasis on hydriding reactions.

Original languageEnglish
Pages (from-to)159-175
Number of pages17
JournalJournal of Alloys and Compounds
Issue number2
StatePublished - 1 Jan 1995


  • Hydriding kinetics
  • Powders
  • Single-particle analysis

ASJC Scopus subject areas

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


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