Glass-forming region, structure and some properties of potassium manganese phosphate glasses

Study of the mechanical and chemical properties of potassium manganese phosphate glasses

“…6 and 7. This result is in agreement with our recently studies [12,13]. The addition of manganese oxide to the glass increases the density of glasses which ranged from 2.64 g/cm 3 for (V1) to 2.89 g/cm 3 for (V4) ( Table 1).…”

“…, which are linked to manganese through P-O-Mn bonds. The formation of P-O-Mn bonds increases the cross-link between the phosphate chains and leads to enhanced chemical durability, in accordance with the increase of Tg [12][13]. These variations can be explained by the effect of the cation substitution on the reticulation of the glasses.…”

“…Were prepared by mixing proportionally weighed raw materials and melted at 1100°C for 1h. Details of the procedure adopted in the preparation of these glasses have been described in our earlier work [13].…”

“…If the ends of a rod are exposed to a stress σ, its relative elongation forming region in the at 1100 °C [12] (see Table 1 for the correspondence between the batch numbers and chemical composition) …”

“…One approach to increasing these properties is to add various oxides to phosphate glasses, such as PbO, MgO, and TiO 2 , and MnO, etc. These oxides lead to the formation of Pb-O-P, Mg-O-P, Ti-O-P and Mn-O-P bonds which replace the easily hydrolysable P-P-P bonds and improve dramatically the chemical durability of the modified phosphate glasses [9][10][11][12][13]. Similarly, the properties of these glasses in terms of mechanical, structural, and electrical properties can be also improved by adding some oxides cited MATEC Web of Conferences 149, 01081 (2018) https://doi.org/10.1051/matecconf/201814901081 CMSS-2017 above.…”