Article ID Journal Published Year Pages File Type
5441262 Journal of Non-Crystalline Solids 2017 8 Pages PDF
Abstract
The effect of modifier mixing on structure and properties of (Ca, Mg) metaphosphate glasses is considered across the binary join of xMgO-(1-x)CaO-P2O5. Pronounced extrema in hardness, Young's modulus, local creep and glass transition temperature are related to variations in modifier precipitation. Both alkaline earth species compete for octahedral lattice sites, what leads to an increase in the fraction of [MgO4] tetrahedral units at equimolar mixing. At the same time, the structural backbone of phosphate Q2 species is affected through favorable formation of ring- and chain-like superstructures in the presence of Ca2 + and Mg2 +, respectively.
Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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