About this Abstract |
Meeting |
MS&T22: Materials Science & Technology
|
Symposium
|
Glasses and Optical Materials: Current Issues and Functional Applications
|
Presentation Title |
D-18: Tungsten Borate – A Replacement for Lead in Glass |
Author(s) |
Elizabeth M. Tsekrekas, Alexis G Clare |
On-Site Speaker (Planned) |
Elizabeth M. Tsekrekas |
Abstract Scope |
Heavy metal oxide glasses are often of great interest for their ability to be used as an alternative to lead-based glasses, and example of which is radiation shielding applications. In addition, it is desirable to find suitable applications for recycled lead-based glasses to reduce the production of new glasses. In a twofold-effort to find a replacement for lead and an application for recycled lead, glass microspheres from ternary tungsten borate systems and recycled lead glass were produced and compared. To create microspheres, glasses were crushed into small frit and fed into a propane/oxygen torch. Microsphere size and shape were analyzed through the use of a SEM. Raman spectroscopy was preformed on the glass to determine structural units within the network. In addition, physical, thermal, and optical properties were measured and compared between the fabricated ternary tungsten borate and recycled lead glasses. |