Borosilicate Glasses

Yue, Yuanzheng; Tuheen, Manzila I.; Du, Jincheng

doi:10.1016/b978-0-12-818542-1.00098-9

Cited by 10 publications

(5 citation statements)

References 84 publications

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“…To predict the long-term chemical durability and comprehend the dissolution behaviors of complex oxide glasses such as borosilicate glasses for nuclear waste disposal, one needs to understand the short- and medium-range structural features of these glasses. − Questions that need to be answered include how a given element is incorporated into the glass structure, how specific sites in the glass react with water, and how the structure and reactivity are different within the alteration layer relative from those at an exposed surface . Many different experimental techniques, such as solid-state nuclear magnetic resonance (NMR), Raman spectroscopy, extended X-ray absorption fine structure (EXAFS), and neutron and X-ray diffraction have been used to elucidate the short- and medium-range structures of glasses. , Great advances in understanding of the glass structures have been achieved due to these efforts. For example, 11 B nuclear NMR has been used to quantify boron-coordination change with composition in borosilicate glasses, which has helped in understanding the leaching behaviors of sodium borosilicate glasses .…”

Section: Corrosion Of Glass In Aqueous Environmentsmentioning

confidence: 99%

“…For example, 11 B nuclear NMR has been used to quantify boron-coordination change with composition in borosilicate glasses, which has helped in understanding the leaching behaviors of sodium borosilicate glasses . Atomistic computer simulations, both first-principles-based and classical-based methods, have been applied to the study of the structures of silicate glasses and borosilicate-based nuclear waste glasses. , Several reviews have been published in recent years on the experimental , and computational approaches − to determine the structure and water reactivity of multicomponent silicate and borosilicate glasses.…”

Section: Corrosion Of Glass In Aqueous Environmentsmentioning

confidence: 99%

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Recent Advances in Corrosion Science Applicable To Disposal of High-Level Nuclear Waste

et al. 2021

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High-level radioactive waste is accumulating at temporary storage locations around the world and will eventually be placed in deep geological repositories. The waste forms and containers will be constructed from glass, crystalline ceramic, and metallic materials, which will eventually come into contact with water, considering that the period of performance required to allow sufficient decay of dangerous radionuclides is on the order of 105–106 years. Corrosion of the containers and waste forms in the aqueous repository environment is therefore a concern. This Review describes the recent advances of the field of materials corrosion that are relevant to fundamental materials science issues associated with the long-term performance assessment and the design of materials with improved performance, where performance is defined as resistance to aqueous corrosion. Glass, crystalline ceramics, and metals are discussed separately, and the near-field interactions of these different material classes are also briefly addressed. Finally, recommendations for future directions of study are provided.

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Section: Corrosion Of Glass In Aqueous Environmentsmentioning

confidence: 99%

Section: Corrosion Of Glass In Aqueous Environmentsmentioning

confidence: 99%

Recent Advances in Corrosion Science Applicable To Disposal of High-Level Nuclear Waste

et al. 2021

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“…Multicomponent borosilicate and aluminoborosilicate glasses are of great significance in industrial and technological applications. First invented by the German glassmaker Otto Schott in the 19th century, the use of borosilicate glasses started from kitchenware, thermometer but later expanded to sealing glasses, insulation fiber, heat and chemical resistant containers 1‐7 . This family of glasses has also gained significant interest because of their applications in biomedicine 1,8 and nuclear waste immobilization 9‐16 .…”

Section: Introductionmentioning

confidence: 99%

“…First invented by the German glassmaker Otto Schott in the 19th century, the use of borosilicate glasses started from kitchenware, thermometer but later expanded to sealing glasses, insulation fiber, heat and chemical resistant containers. [1][2][3][4][5][6][7] This family of glasses has also gained significant interest because of their applications in biomedicine 1,8 and nuclear waste immobilization. [9][10][11][12][13][14][15][16] The chemical durability and mechanical properties of borate-glasses can further be enhanced by the introduction of Al 2 O 3 in the borosilicate matrices, © 2022 The American Ceramic Society and Wiley Periodicals LLC.…”

Section: Introductionmentioning

confidence: 99%

Effect of modifier cation field strength on the structures of magnesium oxide containing aluminoborosilicate glasses

Tuheen

2022

Int J of Appl Glass Sci

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Network glass structures are commonly characterized by the network formers and their linkage but modifiers can also play an important role on various features of glass structures. In this work, we investigated the effect of cation field strength (CFS) of common modifier cations with large differences of CFS on the structures of aluminoborosilicate glasses by performing molecular dynamics (MD) simulations with recently developed potentials. It was found that modifier cations with higher CFS such as Mg 2+ significantly reduced the fraction of fourfold coordinated boron, suggesting that the cations with higher field strength favor nonbridging oxygen generation in the silicate network and are less effective for charge compensation. The findings from our MD simulations are compared with the results from NMR and Raman spectroscopy studies in the literature as well as those from other MD simulations. Insights of the CFS effect on glass structures and the structural role of Mg 2+ ions are gained from these simulations results and related discussions.

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“…Borosilicate and boroaluminosilicate glasses are of significant importance due to their wide applications in technology fields ranging from insulating and reinforcing glass fibers, thermal shock and chemical resistant glass containers, optical components, to soft tissue repair for biomedicine and media for the immobilization of radioactive nuclear waste. [1][2][3][4][5][6][7] Due to the presence of multiple glass network formers such as boron oxide, silica, and alumina along with their interactions with one or more network modifiers, this causes complex interactions among the glass formers that lead to mixed former effect and give rise to peculiar structure-property relations of these glasses. 8,9 The structures of borosilicate and boroaluminosilicate glasses have been investigated by experimental techniques such as 11 B solid-state nuclear magnetic resonance (NMR) and Raman spectroscopy, with models based on these analyses that providing insights on the structures of these glasses.…”

Section: Introductionmentioning

confidence: 99%

Effect of iron redox ratio on the structures of boroaluminosilicate glasses

Tuheen

Sun

2022

J Am Ceram Soc.

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Iron oxide is commonly found in natural or industrial glass compositions and can exist as ferrous (Fe 2+ ) or ferric (Fe 3+ ) species, with their ratios depending on glass composition, temperature, pressure and the redox reactions during the glass forming process. The iron redox ratio plays an important role on silicate glass structures and consequently various properties. This work aims to study the effect of iron oxide, and particularly the iron redox ratio, on the structures of borosilicate and boroaluminosilicate glasses using molecular dynamics simulations with newly developed iron potential parameters that are compatible with the borosilicate potentials. The results provide detailed cation coordination states of both iron species and the effect of redox ratio on boron coordination and other structural features. Particularly, competition for charge compensating modifier cations (such as Na + ) among the fourfold-coordinated cations such as B 3+ , Al 3+ , and Fe 3+ is investigated by calculating the cation-cation pair distribution functions and coordination preferential ratios. The results show that the trivalent ferric ions, with a shorter Fe-O bond distance and better defined first coordiation shell with mainly four-fold coordination, act as a glass former whereas the divalent ferrous ions mainly play the role of glass modifier. The ferrous/ferric ratio (Fe 2+ /Fe 3+ ) was found to affect the glass chemistry and hence glass properties by regulating the amount of four-coordinated boron, the fraction of non-briding oxygen and other features. The results are compared with available experimental data to gain insights of the complex structures and charge compensation schemes of the glass system.

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Borosilicate Glasses

Cited by 10 publications

References 84 publications

Recent Advances in Corrosion Science Applicable To Disposal of High-Level Nuclear Waste

Recent Advances in Corrosion Science Applicable To Disposal of High-Level Nuclear Waste

Effect of modifier cation field strength on the structures of magnesium oxide containing aluminoborosilicate glasses

Effect of iron redox ratio on the structures of boroaluminosilicate glasses

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