NDLI: Effect on SiO2 gel for optical fiber preform by hydrochloric acid and formamide in sol-gel method

Content Provider	IEEE Xplore Digital Library
Author	Shan-shan Hao Hui Tang Wei-li Gao
Copyright Year	2011
Description	Author affiliation: School of Material Science and Engineering, Harbin University of Science and Technology, 150080, China (Shan-shan Hao; Hui Tang; Wei-li Gao)
Abstract	To prepare SiO2 gel for optical fiber perform which has higher transparency and better crack control, adopting sol-gel method, tetraethoxysilane(TEOS) as raw material, ethanol alcohol and water as solvents. To study on the main effects on SiO2 gel by hydrochloric acid(HCl) and formamide, XRD, SEM and electron spectrometer were adopted to test and analyze gel microstructure, chemical bond, phase structure and purity. To develop transparency and crack control as, choose and test gel from many experiment projects is chose and tested, and the result indicates that the microstructure is amorphous of which main element are Si and O. The experiment shows that there is delamination at 90°C, if hydrochloric acid is added less. However, delamination disappear and time of making gel reduces with more hydrochloric acid. There is yellow substance appears with a fixed quantify of hydrochloric acid. Tested by electron spectrometer,The less hydrochloric acid, the higher gel purity is obtained. AsTEOS∶ alcohol∶ water∶ HCl = 1∶ 4∶ 8∶ a, gel purity which is 98.6% is the highest.From SEM, with more formamide gel surface levels off, crack control reduce obviously, while the gel purity decreases. Therefore, TEOS∶ ethanol∶ water∶ HCl∶ CH3NO = 1∶ 4∶ 8∶ a ∶b is taken as best project.
Starting Page	211
Ending Page	214
File Size	883953
Page Count	4
File Format	PDF
ISBN	9781457703980
e-ISBN	9781457703997
DOI	10.1109/IFOST.2011.6021005
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-08-22
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Integrated optics Human computer interaction Optical fibers Ethanol Heating preform optical fiber Optical imaging Three dimensional displays SiO2 sol-gel method
Content Type	Text
Resource Type	Article

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