TY - BOOK AU - Ahmed Adel Enany AU - Lothar Wondraczek , AU - Nahed Elmahallawy , TI - crystallization of multi-component tellurite glasses : : The impact of SiO2 / PY - 2010/// CY - Cairo : PB - Ahmed Adel Enany , N1 - Thesis (M.Sc.) - German University - Faculty of Postgraduate Studies and Scientific Research - Department of Matherials Engineering N2 - This work reports the preparation and characterization of different compositions of tellurite glass system (75-x) TeO₂ - 10 ZnO-15 Na₂O-xSiO₂ with 0{u2264}x{u2264}1 in order to study the influence of silica on tellurite glass . The glass properties were investigated by beam bending viscosity light transmission analysis X - ray diffraction measuring the density EDX and the glass transition temperatures were measured by DSC and dilatometer UR - http://172.23.153.220/th.pdf ER -