Skip to main content

A study of rare earth doped silicate and phosphate glasses

Bowron, Daniel Timothy (1994) A study of rare earth doped silicate and phosphate glasses. Doctor of Philosophy (PhD) thesis, University of Kent. (KAR id:38697)

PDF Author's Accepted Manuscript
Language: English
Download (1MB) Preview
[thumbnail of Daniel Bowron.pdf]
Preview
This file may not be suitable for users of assistive technology.
Request an accessible format

Abstract

The complementary techniques of X-ray diffraction and EXAFS have been applied to silicate

The silicate systems that have been studied are rare earth doped fibre optic preforms of

The phosphate glasses studied are rare earth metaphosphates of the composition R(PO3)3. X-ray diffraction measurements were taken showing that the network structure of these systems is essentially constructed from PO4 tetrahedra. The EXAFS experiments, performed on a range of glasses over the rare earth LIII edges, show a trend in the first shell distance rare earth-oxygen, consistent with the Lanthanide contraction, the rare earth ions occupy-ing sites with between six and eight-fold coordination of oxygen atoms about the rare earth ions.

Item Type: Thesis (Doctor of Philosophy (PhD))
Subjects: Q Science > QC Physics
Divisions: Divisions > Division of Natural Sciences > School of Physical Sciences
Depositing User: Suzanne Duffy
Date Deposited: 11 Mar 2014 11:57 UTC
Last Modified: 16 Feb 2021 12:51 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/38697 (The current URI for this page, for reference purposes)
  • Depositors only (login required):