Structural Role of Strontium Oxide in Modified Silicate Glasses

Silicon ◽  
2021 ◽  
Author(s):  
Gomaa El Damrawi ◽  
Rawya Mohammed Ramadan ◽  
Mohamed El Baiomy
Keyword(s):  
Silicate Glasses ◽  
Strontium Oxide ◽  
Structural Role

Structural role of water in sodium silicate glasses: results from silicon-29 and proton NMR spectroscopy

1992 ◽  
Vol 96 (15) ◽  
pp. 6405-6410 ◽  
Author(s):  
Joerg Kuemmerlen ◽  
Lawrence H. Merwin ◽  
Angelika Sebald ◽  
Hans Keppler
Keyword(s):  
Nmr Spectroscopy ◽  
Sodium Silicate ◽  
Proton Nmr ◽  
Silicate Glasses ◽  
Proton Nmr Spectroscopy ◽  
Structural Role

The structural role of lanthanum oxide in silicate glasses

2019 ◽  
Vol 505 ◽  
pp. 18-27 ◽  
Author(s):  
Anuraag Gaddam ◽  
Hugo R. Fernandes ◽  
Dilshat U. Tulyaganov ◽  
José M.F. Ferreira
Keyword(s):  
Lanthanum Oxide ◽  
Silicate Glasses ◽  
Structural Role

scholarly journals Structural Role of Strontium Oxide in Modified Silicate Glasses

2021 ◽  
Author(s):  
Gomaa El-Damrawi ◽  
Rawia Ramadan ◽  
mohamed Biomey
Keyword(s):  
Calcium Phosphate ◽  
Network Structure ◽  
31P Nmr ◽  
Composition Range ◽  
Glass Ceramics ◽  
Silicate Glasses ◽  
Strontium Oxide ◽  
Amorphous Network ◽  
Heat Treated

Abstract In the composition range of x= 0-15 mol%, glasses in the system 24.5Na2O.24.5CaO.6P2O5.xSrO.(45-x)SiO2 have been studied. The glasses are transparent and have an amorphous network structure when they are as prepared. Heat treated glasses, on the other hand, are transformed into opaque white glass ceramics with a highly crystalline network structure. The main well-formed crystalline species in material bioactivity were apatite (calcium phosphate, Ca3(PO4)2, wollastonite (calcium silicate, CaSiO3), and strontium calcium phosphate [Ca2Sr(PO4)2. Increasing SrO improves material crystallite and increases the host glass matrix's hardness. The modification of the apatit Ca(PO3)2 to involve Sr ions inducing Ca2Sr (PO4)2 apatite one is thought to be the cause of the change in XRD spectra, 31P NMR chemical shift, and hardness number as SrO increases. These species help to improve material properties and hardness.

A Combined Experimental-Computational Strategy for the Design, Synthesis and Characterization of Bioactive Zinc-Silicate Glasses

2008 ◽  
Vol 377 ◽  
pp. 211-224 ◽  
Author(s):  
Gigliola Lusvardi ◽  
Ginaluca Malavasi ◽  
Ledi Menabue ◽  
Maria Cristina Menziani
Keyword(s):  
Silicate Glasses ◽  
Zinc Silicate ◽  
Synthesis And Characterization ◽  
Design Synthesis ◽  
Structural Role ◽  
Computational Strategy

This review presents a combined experimental-computational strategy for the development of potential bioactive zinc–containing silicate glasses and shows how sound relationships among the structural role of some key elements that appear to control bioactivity can by established and exploit for rational glass design.

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