Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1497725 | Optical Materials | 2006 | 7 Pages |
Abstract
Binary calcium phosphate and barium phosphate glasses corresponding to xCaO–(100 − x)P2O5 and xBaO–(100 − x)P2O5, respectively, have been prepared in the range of 20 ⩽ x ⩽ 50. Assessment of the optical and thermal properties reveal that refractive index (n) and glass transition temperature (Tg) show a minima while thermal expansion coefficient (α) and thermo-optic coefficient (dn/dT) change monotonically as the amount of modifying oxides, CaO and BaO, increase. α > 9 × 10−6/°C is required for the calcium phosphate and barium phosphate glasses to exhibit negative dn/dT.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
E.T.Y. Lee, E.R.M. Taylor,