International Journal of High Energy Physics 2017; 4(6): 75-87 http://www.sciencepublishinggroup.com/j/ijhep doi: 10.11648/j.ijhep.20170406.12 ISSN: 2376-7405 (Print); ISSN: 2376-7448 (Online) (FeNaP) 2 O 9 Glasses Doped with Different TM Ions Hossam Mohamed Gomaa 1, * , Ahmed Hamdy El-Dosokey 2 , Khaled Hamoda Idress 3 1 Optics Technology Branch, Higher Institute of Optics Technology, Cairo, Egypt 2 Phys. Department, Faculty of Science, El-Fayoum University, El-Fayoum, Egypt 3 Phys. Department, Faculty of Science, Sert University, Sert, Libya Email address: H_goumaa@yahoo.com (H. M. Gomaa) * Corresponding author To cite this article: Hossam Mohamed Gomaa, Ahmed Hamdy El-Dosokey, Khaled Hamoda Idress. (FeNaP) 2 O 9 Glasses Doped with Different TM Ions. International Journal of High Energy Physics. Vol. 4, No. 6, 2017, pp. 75-87. doi: 10.11648/j.ijhep.20170406.12 Received: September 15, 2017; Accepted: October 27, 2017; Published: November 27, 2017 Abstract: In an attempt to check the effect of the transition metal ions on the glass network, the following chemical formula was used to prepare some of Iron sodium phosphate glasses doped with different transition metal (TM) ions. 50 mol% P 2 O 5 + 20 mol% Na 2 O + 15 mol% Fe 2 O 3 + 15 mol% M n O m , where M n O m represents V 2 O 5 , MnO, Co 3 O 4 , CuO and ZnO. Mossbauer Effect (ME) spectroscopic analysis showed that, the iron ions are located in two different oxidation states Fe 3+ and Fe 2+ . A fraction of Fe 3+ ions act as glass network formers (GNFs), whereas the other in addition to all Fe 2+ ions act as glass network modifiers (GNMs). The electrical properties for all samples have been measured and then studied as a function of the TMIs atomic number. The D.C. conductivity showed a gradual decreasing with increasing the atomic number of TMIs, while the A.C. conductivity has a similar behavior as predicted by CBH model. Keywords: Transition Metal Ions, Mossbauer Effect, Amorphous Materials, Structural Properties and Electrical Properties 1. Introduction Phosphate glasses technologically considered as an important materials, because they have generally higher thermal expansion characteristic and lower transition temperatures comparing with silicate and borate glasses. Oxide glasses such as boron oxide, lead oxide and silicon oxide are characterized by a hard stability and a chemical durability. Also, phosphate glasses were found to be electronically conductors or semiconductors, due to the addition of transition metal oxides . Nowadays Oxide glasses containing large amounts of transition-metal ions exhibit interesting electrical properties, since their behaviors are strongly influenced by the presence of their ions in more than one valence state [1]. These states appeared in the glass networks as a result of the redox processes occurring during melting process. The majority of the experimental measurements have carried out on vanadate glasses [2]. Oxide glasses containing high percentages of iron [3] and copper [4], [5] have a great interesting because copper ions serve not only as a shopping center, but they also contribute in the ionic conductivity. Iron phosphate glasses were found to behave as a typical semiconductor and exhibit unusually a good chemical durability. This work aims to show the effect of the different transition metal ions on both structural and electrical properties of the phosphate glasses. 2. Experimental Glasses of the composition 50 mol% P 2 O 5 . 20 mol% Na 2 O. 15 mol% Fe 2 O 3 . 15 mol% M n O m where M n O m represents V 2 O 5 , MnO, Co 3 O 4 , CuO and ZnO were prepared by the melting quenching method. All glass samples were prepared from chemicals with 99.99% purity as starting materials. Each batch was grounded and mixed well by using agate mortar and then transferred to porcelain crucible. The crucible of all batches inserted, at the same time, for two hours in an electric muffle furnace which had reach fixed temperature about 1000°C. Melts were stirred from time to time to get a complete homogeneity for melts. After duration of time, they were poured between two precooled stainless- steel plates. Mossbauer Effect spectroscopy have been