Structure of cesium loaded iron phosphate glasses: An infrared and Raman spectroscopy study

Abstract The structure of cesium loaded iron phosphate glasses (IPG) was investigated using infrared and Raman spectroscopy. The spectra of the cesium doped samples revealed a structural modification of the parent glass owing to the incorporation of cesium. The structural changes could be correlated with the variation observed in the glass transition temperature of these glasses. Increased Cs-mediated cationic cross linking appears to be the reason for the initial rise in glass transition temperature up to 21 mol% Cs 2 O in IPG; while, breakdown of the phosphate network with increasing cesium content, brings down the glass transition temperature.

[1]  M. Nocuń.  Structural studies of phosphate glasses with high ionic conductivity , 2004 .

[2]  Yasser M. Moustafa,et al.  Infrared spectra of sodium phosphate glasses , 1998 .

[3]  Delbert E. Day,et al.  Effect of melting temperature and time on iron valence and crystallization of iron phosphate glasses , 1999 .

[4]  M. Ma̧czka,et al.  Synthesis and characterization of M2O–MgO–WO3–P2O5 (M = K, Rb, Cs) glass system , 2006 .

[5]  U. Hoppe.  A structural model for phosphate glasses , 1996 .

[6]  P. Rao,et al.  Crystallisation kinetics of a cesium iron phosphate glass , 2009 .

[7]  Michael A. Karakassides,et al.  Bioactive glasses in the system CaO–B2O3–P2O5: Preparation, structural study and in vitro evaluation , 2006 .

[8]  D. Day,et al.  Mixed ion–polaron transport in Na2O–PbO–Fe2O3–P2O5 glasses , 2004 .

[9]  D. Day,et al.  Structural properties of Cr2O3-Fe2O3-P2O5 glasses. Part I , 2007 .

[10]  S. Das,et al.  Study of sodium and silver phosphate glasses doped with some metal chlorides , 2006 .

[11]  Delbert E. Day,et al.  Structure of sodium phosphate glasses containing Al2O3 and/or Fe2O3. Part I , 2001 .

[12]  G. Chryssikos,et al.  Cation Network Interactions in Binary Alkali-Metal Borate Glasses - a Far-Infrared Study , 1987 .

[13]  Delbert E. Day,et al.  Chemically Durable Iron Phosphate Glasses for Vitrifying Sodium Bearing Waste (SBW) Using Conventional and Cold Crucible Induction Melting (CCIM) Techniques , 2003 .

[14]  D. Day,et al.  Studies of lead–iron phosphate glasses by Raman, Mössbauer and impedance spectroscopy , 2005 .

[15]  Steve W. Martin,et al.  Thermal, acoustic, and nuclear magnetic resonance studies of cesium borate glasses , 2001 .

[16]  A. Efimov.  IR fundamental spectra and structure of pyrophosphate glasses along the 2ZnO·P2O5–2Me2O·P2O5 join (Me being Na and Li) , 1997 .

[17]  S. Kilcoyne,et al.  Effects of modifier additions on the thermal properties, chemical durability, oxidation state and structure of iron phosphate glasses , 2009 .

[18]  P. Rao,et al.  Studies on the synthesis and characterization of cesium-containing iron phosphate glasses , 2009 .

[19]  D. Day,et al.  Electrical Conductivity and Structural Properties of Cesium Iron Phosphate Glasses: A Potential Host for Vitrifying Nuclear Waste , 2000 .

[20]  Delbert E. Day,et al.  Iron valence and coordination in phosphate glasses as studied by optical spectroscopy , 1998 .

[21]  Pavel R. Hrma,et al.  Chemically durable iron phosphate glass wasteforms , 1998 .

[22]  H. Monma,et al.  Properties and vibrational spectra of magnesium phosphate glasses for nuclear waste immobilization , 2006 .

[23]  P. Shih.  Properties and FTIR spectra of lead phosphate glasses for nuclear waste immobilization , 2003 .

[24]  Delbert E. Day,et al.  Iron redox equilibrium, structure and properties of iron phosphate glasses , 2001 .

[25]  D. Tallant,et al.  The short-range structure of zinc polyphosphate glass , 1995 .

[26]  Richard K. Brow,et al.  Review: the structure of simple phosphate glasses , 2000 .