Compositional effects on the optical and thermal properties of sodium borophosphate glasses
Compositional effects on the optical and thermal properties of sodium borophosphate glasses
A series of sodium borophosphate glasses of the composition (1-x)NaPO3-xB2O3 have been synthesised from Na2CO3, B2O3 and P2O5 and their optical and thermal properties investigated. The results show that refractive index (n) and glass transition temperature (Tg) show a maximum at about B/(B+P) = 0.6 while thermal expansion coefficient (α) and thermo-optic coefficient (dn/dT) change monotonically with the B/(B+P) ratio. These observations can be interpreted based on the incorporation of BO3 and BO4 units into the glass structural network.
glasses, optical properties, thermal expansion
47-51
Lee, E.T.Y.
f47c6d5d-2d1f-4f03-a3ff-03658812d80b
Taylor, E.R.M.
cc92e3b4-87b4-42dd-ae10-4c6a4a849d71
January 2005
Lee, E.T.Y.
f47c6d5d-2d1f-4f03-a3ff-03658812d80b
Taylor, E.R.M.
cc92e3b4-87b4-42dd-ae10-4c6a4a849d71
Lee, E.T.Y. and Taylor, E.R.M.
(2005)
Compositional effects on the optical and thermal properties of sodium borophosphate glasses.
Journal of Physics and Chemistry of Solids, 66 (1), .
(doi:10.1016/j.jpcs.2004.08.030).
Abstract
A series of sodium borophosphate glasses of the composition (1-x)NaPO3-xB2O3 have been synthesised from Na2CO3, B2O3 and P2O5 and their optical and thermal properties investigated. The results show that refractive index (n) and glass transition temperature (Tg) show a maximum at about B/(B+P) = 0.6 while thermal expansion coefficient (α) and thermo-optic coefficient (dn/dT) change monotonically with the B/(B+P) ratio. These observations can be interpreted based on the incorporation of BO3 and BO4 units into the glass structural network.
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Published date: January 2005
Additional Information:
2781
Keywords:
glasses, optical properties, thermal expansion
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Local EPrints ID: 21017
URI: http://eprints.soton.ac.uk/id/eprint/21017
ISSN: 0022-3697
PURE UUID: 99c40de7-f6be-4e65-9dc9-df16dbf3a108
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Date deposited: 07 Mar 2006
Last modified: 15 Mar 2024 06:27
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Author:
E.T.Y. Lee
Author:
E.R.M. Taylor
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