Hyperfine Interactions

, Volume 91, Issue 1, pp 783–787 | Cite as

Mössbauer effect study of the effect of gamma irradiation and heat treatment on montmorillonite

  • N. A. Eissa
  • N. H. Sheta
  • W. M. El Meligy
  • H. A. Sallam
Geology, Mineralogy, and Archeology


Mössbauer spectroscopy was used to study the effect of gamma irradiation and heat treatment on montmorillonite. Samples were irradiated to gamma-ray doses ranging from 10 Gy up to 30 MGy. Other samples were heated to different temperatures from 400 ‡C up to 1350 ‡C. The lattice distortion caused by gamma irradiation could be followed. The phase transformations which occurred through and above the dehydroxilation temperature range could be traced and identified. The Mössbauer results were confirmed by X-ray diffraction results.


Spectroscopy Thin Film Heat Treatment Phase Transformation Montmorillonite 
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Copyright information

© J.C. Baltzer AG, Science Publishers 1994

Authors and Affiliations

  • N. A. Eissa
    • 1
  • N. H. Sheta
    • 1
  • W. M. El Meligy
    • 1
  • H. A. Sallam
    • 1
  1. 1.Mössbauer Laboratory, Physics Department, Faculty of ScienceAl-Azhar UniversityNasr City, CairoEgypt

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