Infrared spectra and structure of various crystalline ultraphosphates and their glasses

Structure of zinc phosphate glasses probed by neutron and X-ray diffraction of high resolving power and by reverse Monte Carlo simulations

“…Disproportionation was detected only in samples of high ZnO fractions [18][19][20][21]. Except for ideas of network construction of ZnO-P 2 O 5 glasses based on mixtures of crystal-like superstructures [17,23], results about connectivities of PO 4 units are not used to explain either the plateau of mass density for glasses from 33 to 50 mol% ZnO or the increase of density beyond metaphosphate composition. In the interpretation of the minimum of temperatures of glass transition, T g , which is found for glasses of $57 mol% ZnO [18,20,24] authors of [20] argue that the decreasing number of network linkages is responsible for the decreasing part of T g function.…”

Thermodynamic Database of P2O5-containing Oxide Systems for the Dephosphorization Process in Steelmaking

“…The optimized MgO-P 2 O 5 phase diagram and its calculated P 2 O 5 (l) and MgO(l) activities are presented in Figures 4 and 5, respectively, with experimental data [20,[29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44]. In a similar way, all the available experimental data concerning the phase diagram and thermodynamic properties of all other binary MgO-, FeO-, Fe 2 O 3 -, MnO-, Al 2 O 3 -, Na 2 O-and SiO 2 -P 2 O 5 systems were critically evaluated and optimized to obtain the binary interactions between the oxide component and P 2 O 5 in liquid slag.…”

“…Optimized binary phase diagram of the MgO-P 2 O 5 system with experimental data[20,[29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44]. Brought to you by | University of Queensland -UQ Library Authenticated Download Date | 6/17/15 5:11 PM range of 1550 and 1750°C.…”

Interpretation and modeling of IR-reflectance spectra of glasses considering medium range order

“…Two well-known methods to interpret IR-reflectance spectra are in this paper's focus of attention and are considered from a new point of view: First of all, if a polycrystalline compound exists with the same composition as the glass of interest, the spectra of both materials can be compared in a qualitative manner [1,2]. In case that both exhibit similarities concerning band positions and relative intensities, the glass is assumed to consist of structural units similar to those of the crystalline compound.…”