The structure of aluminosilicate glasses: high-resolution 17O and 27AlMAS and 3QMAS NMR study

Article Abstract:

A new study investigates the 17 O and 27 Al MAS and triple-quantum angle spinning NMR spectra of aluminosilicate glasses.

Glass, Fluid dynamics

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Nature of silicon-boron mixing in sodium borosilicate glasses: a high-resolution (super 11)B and (super 17)O NMR study

Article Abstract:

A detailed investigation of sodium borosilicate glasses with a wide range of compositions is reported. The effect of composition on the speciation of oxygen and boron is studied.

Science & research, All Other Basic Inorganic Chemical Manufacturing, Boron & Compounds, Industrial inorganic chemicals, not elsewhere classified, Silicon & Inorganic Compounds, Silicon compounds, Structure, Chemical properties, Boron compounds

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The structural role of lanthanum and yttrium in aluminosilicate glasses: a 27Al and 17O MAS NMR study

Article Abstract:

Research was conducted to examine the structural role of lanthanum (La) and yttrium (Y) in aluminosilicate glasses. HIgh-resolution 17O and 27 Al NMR data on a series of La and Y aluminosilicates demonstrate the significant increase in concentrations of AlO5 and AlO6 groups resulting from the smaller radii and higher field strengths of the modifier cation. Results suggest major effects on network speciation that vary considerably from Y to La and that place new constraints on the type and extent of compositional clustering.

Yttrium, Lanthanum, Rare earth metals

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