Browsing by Author "Bahgat, A. A."

Now showing items 1-3 of 3

    • Absolute evaluation of ferrous and ferric concentration in Ca amphibole 

      Bahgat, A. A.; Fayek, M. K. ( WILEY-VCH Verlag , 1982 , Article)
      Studies are made of M?sshauer absorption of 57Fe in a Ca-amphibole schist sample at room and liquid nitrogen temperatures. The absolute concentration and the recoilless fraction for ferrous and ferric cations are determined ...

    • Fe57 Mossbauer Study In Cobalt Substituted Magnetite 

      Fayek, M. K. [محمد خورشيد فائق]; Bahgat, A. A. ( Qatar University , 1983 , Article)
      The Mossbauer effect has been studied in the mixed ferrites CoxFe3_x04 (for x = 0.8, 0.9 and 1) with the spinel structure in the temperature range between 78 and 830K. The composition with x = 1, showed an expected Zeeman ...

    • Neutron Diffraction And Mossbauer Effect Study On A Mixed Rare Earth Garnet 

      Fayek, M. K. [محمد خورشيد فائق]; Moberg, L.; Abbas, Y.; Bahgat, A. A. ( Qatar University , 1983 , Article)
      A powder sample of Y^YbFesO,; was prepared using the ceramic technique. X-ray diffraction pattern showed a single phase of the garnet type structure with a lattice constant 12.323 A". Specific heat for this composition was ...