Nuclear Magnetic Resonance in Glass

Cerium and boron chemistry in doped borosilicate glasses examined by EELS

“…In particular is available for N 4 Z0.55 (XAS; Fleet and Muthupari, 1999) and N 4 Z0.65 (NMR; Stallworth and Bray, 1990), compared to 0.40 for our work. To compare with other EELS work on glasses, we refer to the irradiation experiments of Jiang and Silcox (2004), on a sodium-borosilicate glass with RZ0.5.…”

“…4). From NMR-measurements (Stallworth and Bray, 1990), we find that N 4 increases roughly linearly with the alkali/boron ratio before reaching a maximum at around RZ1. Our own compositions are thus close to this maximum (circle 1 in Fig.…”

“…This is partially due to the success of bulk spectroscopies (with micro-to centimetre scale spatial resolutions) such as NMR, XAS, XPS, Raman spectroscopy (Stallworth and Bray, 1990;Fleet and Muthupari, 1999;Holland et al, 2003). However, EELS offers the distinct advantage of nm-resolution to chemical composition measurements by EELS-edge area evaluation.…”

Radiation induced color centers in 50PbO–50P2O5 glass

“…The behavior observed in borate glass is initially a change in the co-ordination number of the boron from three to four as it incorporates the additional oxygen. The bond character becomes three-dimensional and the structure becomes tighter [7]. The response of the glasses to gamma rays irradiation is related to the rate of formation and accumulation of induced defects during progressive irradiation and hence the production of characteristic color center.…”

Nuclear Quadrupole Interactions as a Probe of Glass Molecular Structure

“…0.0376%). The minuscule natural abundances of these isotopes, understandably, has restricted applications [3] of these NQR probes.…”