Corrosion of ISG fibers in alkaline solutions

Cory L. Trivelpiece, Jarrett A. Rice, Nicholas L. Clark, Bernd C. Kabius, Carol M. Jantzen, Carlo G. Pantano

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The corrosion behavior of glass fibers synthesized from the International Simple Glass (ISG) reference ingot, an international High-Level Waste (HLW) borosilicate glass standard, is reported. Bundles of glass fibers were submerged in 120 mL of four different solutions of initial pH values (pHi) of 9.5, 10.5, 11.5, and 12.5 for static corrosion testing. While all the experiments reached a residual corrosion rate after ~50 days, which remained approximately constant for the duration of the pHi 9.5-11.5 experiments, the pHi 12.5 experiment underwent a Stage II→III dissolution transition after 57 days. This transition was preceded by a decrease in the Al concentration in solution followed by an increase in B and Si concentration in the leachate. Zeolite NaP2 was observed to form on these fibers via scanning electron microscopy and X-ray diffraction—the crystallinity of the fibers was estimated to be ~40%-45% (relative to amorphous component) after the Stage II→III transition. Transmission electron microscopy cross-sectional imaging of sampled fibers revealed several porous layers on the pHi 9.5-11.5 samples, and a more aggressive alteration mechanism in the pHi 12.5 fibers. Potential markers that indicate a transition from Stage II→Stage III corrosion are shown to occur based on experimental observations.

Original languageEnglish (US)
Pages (from-to)4533-4547
Number of pages15
JournalJournal of the American Ceramic Society
Volume100
Issue number10
DOIs
StatePublished - Oct 1 2017

Fingerprint

Glass fibers
Corrosion
Fibers
Zeolites
Borosilicate glass
Experiments
Ingots
Corrosion rate
Dissolution
Transmission electron microscopy
Imaging techniques
X rays
Glass
Scanning electron microscopy
fiberglass
Testing

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

Cite this

Trivelpiece, C. L., Rice, J. A., Clark, N. L., Kabius, B. C., Jantzen, C. M., & Pantano, C. G. (2017). Corrosion of ISG fibers in alkaline solutions. Journal of the American Ceramic Society, 100(10), 4533-4547. https://doi.org/10.1111/jace.14950
Trivelpiece, Cory L. ; Rice, Jarrett A. ; Clark, Nicholas L. ; Kabius, Bernd C. ; Jantzen, Carol M. ; Pantano, Carlo G. / Corrosion of ISG fibers in alkaline solutions. In: Journal of the American Ceramic Society. 2017 ; Vol. 100, No. 10. pp. 4533-4547.
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Trivelpiece, CL, Rice, JA, Clark, NL, Kabius, BC, Jantzen, CM & Pantano, CG 2017, 'Corrosion of ISG fibers in alkaline solutions', Journal of the American Ceramic Society, vol. 100, no. 10, pp. 4533-4547. https://doi.org/10.1111/jace.14950

Corrosion of ISG fibers in alkaline solutions. / Trivelpiece, Cory L.; Rice, Jarrett A.; Clark, Nicholas L.; Kabius, Bernd C.; Jantzen, Carol M.; Pantano, Carlo G.

In: Journal of the American Ceramic Society, Vol. 100, No. 10, 01.10.2017, p. 4533-4547.

Research output: Contribution to journalArticle

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Trivelpiece CL, Rice JA, Clark NL, Kabius BC, Jantzen CM, Pantano CG. Corrosion of ISG fibers in alkaline solutions. Journal of the American Ceramic Society. 2017 Oct 1;100(10):4533-4547. https://doi.org/10.1111/jace.14950