Effect of Aging on the Failure Characteristics of E-Glass Fibers
Abstract
The failure strains of E-glass fibers aged in air for up to 6 months at 50 °C/80 % relative humidity were measured in ambient air and in liquid nitrogen using the two-point bending method, and were related to changes in surface morphology as characterized by optical microscopy and scanning electron microscopy. The failure strain of E-glass fibers decreased by 1.5 % per day during the first week of aging, but then more slowly (0.01% per day) over the next 6 months, with similar trends noted for fibers tested in room temperature air and in liquid nitrogen. Small droplets form on the surfaces of fibers aged within the first week and reactions between the droplets and glass create surface defects that degrade failure strains. Over longer times, calcium carbonate crystals form on the fiber surfaces.
Recommended Citation
Q. Wang et al., "Effect of Aging on the Failure Characteristics of E-Glass Fibers," Journal of Materials Science, vol. 51, no. 5, pp. 2404 - 2410, Springer New York LLC, Mar 2016.
The definitive version is available at https://doi.org/10.1007/s10853-015-9549-0
Department(s)
Materials Science and Engineering
Keywords and Phrases
Bending (Forming); Calcium Carbonate; Drop Formation; Drops; Glass Fibers; Liquid Nitrogen; Nitrogen; Scanning Electron Microscopy; Strain; Surface Defects, Ambient Air; Calcium Carbonate Crystals; E-Glass Fibers; Failure Characteristics; Failure Strain; Fiber Surface; Small Droplets; Two-Point Bending, Fibers
International Standard Serial Number (ISSN)
0022-2461; 1573-4803
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2016 Springer New York LLC, All rights reserved.
Publication Date
01 Mar 2016
Comments
The financial support of PPG Industries Inc. is gratefully acknowledged, as is the financial support of Qingwei Wang from the China Scholarship Council. This study was funded by China Scholarship Council (Grant number 201306635001).