Thesis (Ph.D.) - University of Warwick, 1989.
|Statement||Muhammad Golam Mortuza.|
The potential for the use of MAS and static NMR in the investigation of alkali silicate and alkali phosphosilicate glasses and glass ceramics is the main theme of this thesis. MAS NMR of binary lithium silicate glasses containing mol% Li20 shows that their structure follows the constrained distribution model. However addition of Li20 in excess of 29 mol% causes deviation from the model. A nuclear magnetic resonance investigation of the structure of some alkali silicate glasses Author: Mortuza, Muhammad Golam ISNI: Awarding Body: University of Warwick Current Institution: University of Warwick Date of Award: A nuclear magnetic resonance investigation of the structure of some alkali silicate glasses. By Muhammad Golam Mortuza. Download PDF (14 MB) Abstract. The potential\ud for the use of MAS\ud and static\ud NMR in the\ud investigation of alkali silicate and alkali phosphosilicate glasses and\ud glass ceramics\ud is the main theme of this thesis. Author: Muhammad Golam Mortuza. Number of times cited according to CrossRef: 12 Eun Jeong Kim, Yingwei Fei, Sung Keun Lee, Effect of pressure on the short-range structure and speciation of carbon in alkali silicate and aluminosilicate glasses and melts at high pressure up to 8 GPa: 13C, 27Al, 17O and 29Si solid-state NMR study, Geochimica et Cosmochimica Acta, /, , (), ().
Matson DW, Sharma SK, Philpotts JA () The structure of high-silica alkali-silicate glasses — a Raman spectroscopic investigation. J Non-Cryst Solids – CrossRef Google Scholar Matson DW, Sharma S, Philpotts J A () Raman spectra of some tectosilicates and glasses along the orthoclase-anorthite and nepheline-anorthite joins. SOLID STATE Nuclear Magnetic Resonance ELSEVIER Solid State Nuclear Magnetic Resonance 5 () Review Nuclear magnetic resonance investigation of the structures of phosphate and phosphate-containing glasses: a review R. James Kirkpatrick a' *, Richard K. Brow b a Department of Geology, University of Illinois, Urbana, IL , USA b Sandia National Laboratories, . Deconvolution of 29Si magic-angle spinning nuclear magnetic resonance spectra of silicate glasses revisited - some critical comments. Solid State Nucl. Magn. Reson. 5, 63– doi: /(95)N. Amorphous silica-rich surface layers, also called gels, can passivate silicate glass and minerals depending on environmental conditions. However, several uncertainties remain on t.
Solid state 31 P nuclear magnetic resonance (NMR) spectroscopy also provides information about the local structure of phosphate glasses. Grimmer and Wolf  collected 31 P NMR spectra from the three crystalline P 2 O 5 polymorphs and from v-P 2 O 5. Crystalline sodium metasilicate, Na2SiO3, has been investigated by 29Si, 23Na, and 17O MAS NMR spectroscopy. The 17O quadrupolar coupling parameters have been measured for the bridging oxygen (BO) and nonbridging oxygen (NBO) sites. Ab initio calculations have also been performed for clusters modeling these oxygen sites, as well as other sites in crystalline silicates of known structure. On. This paper presents results of first-principles calculations of nuclear magnetic resonance (NMR) parameters: the chemical shielding tensor and the electric field gradient tensor, of some crystalline and amorphous sodium silicate systems. The calculations have been performed using the recently introduced gauge including projector augmented wave (GIPAW) method, which was especially devised for. The compositional evolution of the network structure and connectivity in binary SnO-P2O5 glasses with 35≤ mol% SnO ≤55 is studied using two-dimensional Sn and 31P nuclear magnetic resonance.