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Title: Verification of Crystallite Theory of Glass Modeling Using Rietveld Method
Author(s): M. R. Ebeid, S. K. Abdelraheem, E. M. Abdel-Minem, K. Abdel-Hady and A. A. Ramadan
Source: Egyptian Journal of Solids, 2000, vol. 23, No. 1, 1-12

Abstract: ? To verify the validity of the crystallite theory of amorphous models, the phase of a –quartz has been chosen for representing the silica glass. The fullpattern fitting of Rietveld method is used as a possible approach to produce artificial amorphous-like powder diffraction patterns, also, the corresponding distance correlation functions were calculated. From comparative study of the characteristics of the obtained XRD patterns and real space correlation functions, it is concluded that the silica glass can be modeled as a strained very small crystals (crystallites) of a polymorph...

Addresses: Physics Department, Minia Univ., Minia, Egypt Physics Department, Helwan Univ., Helwan, Cairo, Egypt..

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Country Code: EG