About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Glasses and Optical Materials: Challenges, Advances, and Applications
|
| Presentation Title |
Copper Ion-Exchange of Tin Mixed-Alkali Silicate Glass |
| Author(s) |
Jacob Kaspryk, William LaCourse |
| On-Site Speaker (Planned) |
Jacob Kaspryk |
| Abstract Scope |
The exchange of copper into a glass surface can induce color, luminescence, and metallic particles depending on the oxidation state of the copper present in the glass. With the use of a glass system containing tin, the formation of reduced copper can be achieved without hydrogen gas treatment. Glass with the composition 5SnO-10Li2O-10K2O-10CaO-65SiO2 underwent a copper exchange in a stainless-steel beaker with a CuSO4-NaSO4 salt bath for 1, 4, 16 hours. A post exchange heat treatment was applied to further induce reduction of the copper. Scanning electron microscopy was used to determine the concentration profile of the copper. Results showed that the reduction of copper by tin enabled the formation of reduced copper—Cuo, an immobile species— which inhibited diffusion. UV-Vis spectroscopy was used to investigate the color produced by the exchange. |