Dissolution and Diffusion-Based Reactions within YBa2Cu3O7-x Glass Fibers
| dc.contributor.author | Heyl, Hanna | en |
| dc.contributor.author | Yang, Shuo | en |
| dc.contributor.author | Homa, Daniel S. | en |
| dc.contributor.author | Slebodnick, Carla | en |
| dc.contributor.author | Wang, Anbo | en |
| dc.contributor.author | Pickrell, Gary R. | en |
| dc.contributor.department | Center for Photonics Technology | en |
| dc.contributor.department | Chemistry | en |
| dc.contributor.department | Materials Science and Engineering | en |
| dc.date.accessioned | 2019-12-20T15:03:36Z | en |
| dc.date.available | 2019-12-20T15:03:36Z | en |
| dc.date.issued | 2019-12-20 | en |
| dc.date.updated | 2019-12-20T14:10:55Z | en |
| dc.description.abstract | This work presents a thorough identification and analysis of the dissolution and diffusion-based reaction processes that occur during the drawing of YBa<sub>2</sub>Cu<sub>3</sub>O<sub>7-x</sub> (YBCO) glass-clad fibers, using the molten-core approach, on a fiber draw tower in vacuum and in oxygen atmospheres. The results identify the dissolution of the fused silica cladding and the subsequent diffusion of silicon and oxygen into the molten YBCO core. This leads to a phase separation due to a miscibility gap which occurs in the YBCO–SiO<sub>2</sub> system. Due to this phase separation, silica-rich precipitations form upon quenching. XRD analyses reveal that the core of the vacuum as-drawn YBCO fiber is amorphous. Heat-treatments of the vacuum as-drawn fibers in the 800–1200 °C range show that cuprite crystallizes out of the amorphous matrix by 800 °C, followed by cristobalite by 900 °C. Heat-treatments at 1100 °C and 1200 °C lead to the formation of barium copper and yttrium barium silicates. These results provide a fundamental understanding of phase relations in the YBCO–SiO<sub>2</sub> glass-clad system as well as indispensable insights covering general glass-clad fibers drawn using the molten-core approach. | en |
| dc.description.version | Published version | en |
| dc.format.mimetype | application/pdf | en |
| dc.identifier.citation | Heyl, H.; Yang, S.; Homa, D.; Slebodnick, C.; Wang, A.; Pickrell, G. Dissolution and Diffusion-Based Reactions within YBa2Cu3O7-x Glass Fibers. Fibers 2019, 8, 2. | en |
| dc.identifier.doi | https://doi.org/10.3390/fib8010002 | en |
| dc.identifier.uri | http://hdl.handle.net/10919/96166 | en |
| dc.language.iso | en | en |
| dc.publisher | MDPI | en |
| dc.rights | Creative Commons Attribution 4.0 International | en |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | en |
| dc.subject | YBCO–SiO2 phase relations | en |
| dc.subject | ceramic core glass fibers | en |
| dc.subject | glass fiber drawing | en |
| dc.subject | dissolution of fused silica | en |
| dc.title | Dissolution and Diffusion-Based Reactions within YBa2Cu3O7-x Glass Fibers | en |
| dc.title.serial | Fibers | en |
| dc.type | Article - Refereed | en |
| dc.type.dcmitype | Text | en |