Mrs. S. Ahmadi (Ph.D. student of Metallurgy & Materials Engineering) will defend her Ph.D. thesis entitled "Investigation of sintering and crystallization behaviour of R2O/RO-SiO2-Al2O3-B2O3 oxynitride glass" on the Jan. 31th 2015, supervised by Dr. B. Eftekhari and Dr. H. Sarpoolaky | 
