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Water corrosion of commercial neodymium-doped phosphate high-peak-power laser glass

TitleWater corrosion of commercial neodymium-doped phosphate high-peak-power laser glass
Publication TypeJournal Article
Year of Publication2018
AuthorsLi, M, Wang, B, Wang, X, Yang, X, Chen, DP, Chen, W, Hu, LL
JournalJournal of Non-Crystalline Solids
Volume496
Pagination34-41
Date Published09
Type of ArticleArticle
ISBN Number0022-3093
Accession NumberWOS:000438323600007
KeywordsChemical durability, dissolution behavior, distributions, infrared-spectra, interface, Laser glass, Materials Science, mechanisms, metaphosphate glasses, molecular-dynamics, Phosphate glass, subcritical crack-growth, surface, Surface corrosion, temperature
Abstract

In this paper, the surface corrosion mechanisms of Chinese high-peak-power laser glass, the N31 glass, are investigated. Powder samples were immersed in deionized water for up to 72 days. The concentrations of ions in leachate solutions were measured by inductively coupled plasma optical emission spectroscopy, and the surface evolution during corrosion was characterized by X-ray photoelectron and attenuated total reflection infrared spectroscopies. The N31 glass leaches incongruently, and the normalized ionic release rate decreases with an increase of cation field strength. Depending on the oxygen-to-phosphorus molar ratio (O/P ratio) evolution on the glass surface, the surface corrosion process presents two stages, which can be indirectly supported by the attenuated total reflection infrared spectroscopy results. This study reveals composition and structure evolutions on the glass surface during water corrosion. In addition, our results suggest that the 0/P ratio on glass surface could be used to characterize the surface corrosion degree and mechanisms.

DOI10.1016/j.jnoncrysol.2018.05.022
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Alternate JournalJ. Non-Cryst. Solids