| About this Abstract |
| Meeting |
MS&T21: Materials Science & Technology
|
| Symposium
|
Glasses and Optical Materials: Current Issues and Functional Applications
|
| Presentation Title |
3D Printed Germania-titania-silica Glasses to Tune the Refractive Index and Abbe Number |
| Author(s) |
Jungmin Ha, Koroush Sasan, Timothy D Yee, Andrew Lange, Du T Nguyen, Nikola Dudukovic, Oscar D Herrera, Christopher M Mah, Rebecca Dylla-Spears |
| On-Site Speaker (Planned) |
Jungmin Ha |
| Abstract Scope |
Development of gernamia-titania-silica glasses compatible with direct ink writing (DIW) 3D-printing is reported in this study. Colloidal germania and titania-silica core-shell feedstocks are prepared by a sol-gel method and converted to printable inks for DIW. The inks are densified to glass using heat treatment. The main achievements of this work are (1) the successful preparation of the germania-titania-silica sol inks with desired viscosities to be printed despite three different compositions in the inks, (2) an increase in the refractive index of 3D printed glasses beyond previous reports of titania or germania in glasses, (3) the investigation on the roles of titania and germania in glasses to increase in the refractive index of the glasses, and (4) the independent tuning of the refractive index and Abbe number of the glasses by changing the compositions concentration in the glasses. This work performed by LLNL under Contract DE-AC52-07NA27344 within the LDRD 19-ERD-020. LLNL-ABS-820516. |