NMR characterization of simulated Hanford low-activity waste glasses and its use in understanding waste form chemical durability

J. G. Darab, John Linehan, B. P. McGrail

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

Magic Angle Spinning Nuclear Magnetic Resonance (MAS-NMR) spectroscopy has been used to characterize the structural and chemical environments of B, Al, and Si in model Hanford low-activity waste glasses. The average 29Si NMR peak position was found to systematically change with changing glass composition and structure. From an understanding of the structural roles of Al and B obtained from MAS-NMR experiments, we first developed a model that reliably predicts the distribution of structural units and the average 29Si chemical shift value, δ, based purely on glass composition. A product consistency test (PCT) was used to determine the normalized elemental release (NL) from the prepared glasses. Comparison of the NMR and PCT data obtained from sodium boro-aluminosilicate glasses indicates that a rudimentary exponential relationship exists between the 29Si chemical shift value, and the boron NL value.

Original languageEnglish
Title of host publicationMaterials Research Society Symposium - Proceedings
PublisherMaterials Research Society
Pages337-344
Number of pages8
Volume556
Publication statusPublished - 1999
EventProceedings of the 1998 MRS Fall Meeting - Symposium 'Scientific Basis for Nuclear Waste Management XXII' - Boston, MA, USA
Duration: Nov 30 1998Dec 4 1998

Other

OtherProceedings of the 1998 MRS Fall Meeting - Symposium 'Scientific Basis for Nuclear Waste Management XXII'
CityBoston, MA, USA
Period11/30/9812/4/98

Fingerprint

Durability
Nuclear magnetic resonance
Glass
Magic angle spinning
Chemical shift
Boron
Aluminosilicates
Chemical analysis
Nuclear magnetic resonance spectroscopy
Sodium
Experiments

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

Cite this

Darab, J. G., Linehan, J., & McGrail, B. P. (1999). NMR characterization of simulated Hanford low-activity waste glasses and its use in understanding waste form chemical durability. In Materials Research Society Symposium - Proceedings (Vol. 556, pp. 337-344). Materials Research Society.

NMR characterization of simulated Hanford low-activity waste glasses and its use in understanding waste form chemical durability. / Darab, J. G.; Linehan, John; McGrail, B. P.

Materials Research Society Symposium - Proceedings. Vol. 556 Materials Research Society, 1999. p. 337-344.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Darab, JG, Linehan, J & McGrail, BP 1999, NMR characterization of simulated Hanford low-activity waste glasses and its use in understanding waste form chemical durability. in Materials Research Society Symposium - Proceedings. vol. 556, Materials Research Society, pp. 337-344, Proceedings of the 1998 MRS Fall Meeting - Symposium 'Scientific Basis for Nuclear Waste Management XXII', Boston, MA, USA, 11/30/98.
Darab JG, Linehan J, McGrail BP. NMR characterization of simulated Hanford low-activity waste glasses and its use in understanding waste form chemical durability. In Materials Research Society Symposium - Proceedings. Vol. 556. Materials Research Society. 1999. p. 337-344
Darab, J. G. ; Linehan, John ; McGrail, B. P. / NMR characterization of simulated Hanford low-activity waste glasses and its use in understanding waste form chemical durability. Materials Research Society Symposium - Proceedings. Vol. 556 Materials Research Society, 1999. pp. 337-344
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