The Dependence of N-2 Carrier Gas Flow Rate on Deposition Rate and Density Changes of Porous Silica Preform Synthesized by Eco-Friendly Octamethylcyclotetrasiloxane
- Authors
- Lee, Tae Kyun; Choi, Jinseok; Lee, Ga Hyoung; Jeon, Hyung Jin; An, Sung Jin
- Issue Date
- Aug-2019
- Publisher
- WILEY-V C H VERLAG GMBH
- Keywords
- octamethylcyclotetrasiloxane (OMCTS); optical fibers; silica soot; silica preform
- Citation
- PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, v.216, no.16
- Journal Title
- PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
- Volume
- 216
- Number
- 16
- URI
- https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/19096
- DOI
- 10.1002/pssa.201900289
- ISSN
- 1862-6300
- Abstract
- A porous silica preform for the fabrication of optical fibers is generally synthesized by flame hydrolysis deposition (FHD). To synthesize the porous silica preform, SiCl4 containing chlorine (Cl) is normally used. However, the Cl generated through the FHD process is highly reactive and generates toxic substances, which seriously affect the environment. In this study, the porous silica preform with a radius of more than 250 mm is synthesized using vaporized octamethylcyclotetrasiloxane (OMCTS), which does not contain the Cl. In addition, the effect of the N-2 carrier gas flow rate on the deposition rate of the silica soot and the density of the porous silica preform are investigated. As the carrier gas flow rate increases, the deposition rate decreases and the density of the porous silica preform tends to increase. This result may be due to the difference in the substrate and flame temperature gradients depending on the carrier gas flow rate. The characteristics of the porous silica preform are investigated at the top, middle, and bottom positions. Regardless of the position, the porous silica preform is composed of spherical silica particles with the size of 100-200 nm.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - Department of Materials Science and Engineering > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.