A Mössbauer evaluation of the 57Fe debye temperatures in the Zr(AlxFe1 − x)2 System

I. Jacob, I. Nowik, R. Moreh

Research output: Contribution to journalArticlepeer-review


The Müssbauer recoiless absorption of 57Fe was utilized to monitor the iron cohesion properties in the Zr(AlxFe1−x)2 system for a wide range of compositions, 0 ≤ x ≤ 0.825. Müssbauer spectral area ratios were accurately measured for those samples at three temperatures sets, 423 K and 298 K, 433 K and 303 K, 612 K and 303 K. These ratios depend on the recoil free fractions, f(T), of the absorber at the corresponding temperatures. An experimental area ratio may provide a single parameter, i.e. the Debye temperature, θD, after assuming the Debye approximation. The results indicate a gradual decrease of the iron bonding strength from x = 0 to x = 0.2, demonstrated by a corresponding θD reduction from about 440 K to 310 K. The Debye temperature increases again to approximately 400 K for the Al-rich compounds. This behavior conforms with a previously proposed rule of reverse hydrogen absorption capacity in the above system.

Original languageEnglish
Pages (from-to)595-600
Number of pages6
JournalZeitschrift fur Physikalische Chemie
Issue number1
StatePublished - 1 Jan 1992


  • Debye temperature
  • Fe bonding strength
  • Mössbauer effect
  • Rule ofreverse hydrogen capacity
  • Zr(AlFe)

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry


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