Investigations of glass structure using fluorescence line narrowing and moleuclar dynamics simulations

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The local structure at individual ion sites in simple and multicomponent glasses is simulated using methods of molecular dynamics. Computer simulations of fluoroberyllate glasses predict a range of ion separations and coordination numbers that increases with increasing complexity of the glass composition. This occurs at both glass forming and glass modifying cation sites. Laser-induced fluorescence line-narrowing techniques provide a unique probe of the local environments of selected subsets of ions and are used to measure site to site variations in the electronic energy levels and transition probabilities of rare earth ions. These and additional results from EXAFS, neutron and x-ray ... continued below

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Pages: 14

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Weber, M.J. & Brawer, S.A. July 2, 1982.

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Description

The local structure at individual ion sites in simple and multicomponent glasses is simulated using methods of molecular dynamics. Computer simulations of fluoroberyllate glasses predict a range of ion separations and coordination numbers that increases with increasing complexity of the glass composition. This occurs at both glass forming and glass modifying cation sites. Laser-induced fluorescence line-narrowing techniques provide a unique probe of the local environments of selected subsets of ions and are used to measure site to site variations in the electronic energy levels and transition probabilities of rare earth ions. These and additional results from EXAFS, neutron and x-ray diffraction, and NMR experiments are compared with simulated glass structures.

Physical Description

Pages: 14

Notes

NTIS, PC A02/MF A01.

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  • 5. international conference on physics of non-crystalline solids, Montepellier, France, 5 Jul 1982

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  • Other: DE82018421
  • Report No.: UCRL-87777
  • Report No.: CONF-820720-1
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 5261253
  • Archival Resource Key: ark:/67531/metadc1069676

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • July 2, 1982

Added to The UNT Digital Library

  • Feb. 4, 2018, 10:51 a.m.

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  • April 4, 2018, 1:07 p.m.

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Weber, M.J. & Brawer, S.A. Investigations of glass structure using fluorescence line narrowing and moleuclar dynamics simulations, article, July 2, 1982; United States. (digital.library.unt.edu/ark:/67531/metadc1069676/: accessed April 24, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.