Analysis of structure evolution and performance in alkali-free glass substrates via XPS and infrared: Boron-aluminum anomaly

Huang, Qianxing; Liu, Jianlei; He, Xiancong; Liu, Taoyong; Lu, Anxian

doi:10.1016/j.jnoncrysol.2020.120531

Cited by 41 publications

(13 citation statements)

References 69 publications

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“…16,17 In this work, the O 1s XPS spectra of the samples were deconvoluted into two peaks at 530−532 eV and 531−533 eV, attributed to NBO and BO, respectively. 18 The relative proportions of the integrated XPS peaks for BO and NBO in the glass before and after the heat treatment were 51% and 49%, and 36% and 64%, respectively. The decrease in the tetrahedral boron led to an increase in the NBO content.…”

Section: Resultsmentioning

confidence: 93%

“…It has been suggested that free oxygen exists at low concentrations in Na 2 O‐ or K 2 O‐SiO 2 glasses 16,17 . In this work, the O 1s XPS spectra of the samples were deconvoluted into two peaks at 530−532 eV and 531−533 eV, attributed to NBO and BO, respectively 18 . The relative proportions of the integrated XPS peaks for BO and NBO in the glass before and after the heat treatment were 51% and 49%, and 36% and 64%, respectively.…”

Section: Resultsmentioning

confidence: 96%

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Influence of structural change by heat treatment on the wettability of borosilicate glass

Maeda

Sakai

Matsuura

2022

Int J of Appl Glass Sci

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The chemical composition and surface structure of glass affect its wettability and can thus lead to the formation of various functional surfaces. This study examined the influence of the structural changes induced by the heat treatment of sodium borosilicate glass on its wettability. Specifically, 15Na2O‐40B2O3‐45SiO2 glass was prepared through melt‐quenching. The obtained glass was subjected to heat treatment at 600°C for 3 h. The heat‐treated glass exhibited a higher hydrophilicity and surface free energy than the nontreated glass. The heat treatment led to a variation in the relative ratio associated with the boron coordination number and nonbridging oxygen. Therefore, the heat‐treatment‐induced changes in the glass structure considerably enhanced the wettability of the glass.

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Section: Resultsmentioning

confidence: 93%

Section: Resultsmentioning

confidence: 96%

Influence of structural change by heat treatment on the wettability of borosilicate glass

Maeda

Sakai

Matsuura

2022

Int J of Appl Glass Sci

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“…Compared with Al 3+ , B 3+ can enhance the acid resistance of glass within a certain range [22]. The corrosion of glass by HF mainly relies on the electrophilic corrosion of non-bridging oxygen by high concentrations of H + , which undergoes a substitution reaction with R 2+ [52]. As more B 3+ was introduced into bonding sites in the form of -Si-O-B IV , it was difficult for the electrophilic corrosion mechanism of HF in the form of ion exchange to occur in the glass, so the acid resistance of glass became better.…”

Section: Chemical Stabilitymentioning

confidence: 99%

Network Structure and Properties of Lithium Aluminosilicate Glass

et al. 2022

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Based on lithium aluminosilicate glass, the composition of glass was optimized by replacing SiO2 with B2O3, and the influence of glass composition on structure and performance was studied. With the increase in B2O3 concentrations from 0 to 6.5 mol%, Al2O3 always existed in the form of four-coordinated [AlO4] in the network structure, and B2O3 mainly entered the network in the form of four-coordinated [BO4]. The content of Si-O-Si linkages (Q4(0Al)) was always dominant. The incorporation of boron oxide improved the overall degree of polymerization and connectivity of the lithium aluminosilicate glass network structure. An increase in the degree of network polymerization led to a decrease in the thermal expansion coefficient of the glass and an increase in Vickers hardness and density. The durability of the glass in hydrofluoric acid and NaOH and KOH solutions was enhanced overall.

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“…Addition of modifiers to aluminosilicate glasses have similar effect: Modifier cations initially serve as charge compensators to negatively charged [4] Al units instead of creation of NBOs. The effect of addition of modifiers to aluminoborosilicate glasses becomes more complicated as there exist a competition of [4] Al and [4] B for modifier cations for charge compensation 21,26‐30 . It is generally believed that modifier cations first charge compensate [4] Al then [4] B, but the exact nature is still unclear.…”

Section: Introductionmentioning

confidence: 99%

“…The effect of addition of modifiers to aluminoborosilicate glasses becomes more complicated as there exist a competition of [4] Al and [4] B for modifier cations for charge compensation. 21,[26][27][28][29][30] It is generally believed that modifier cations first charge compensate [4] Al then [4] B, but the exact nature is still unclear. The simple picture of a modifier cation to either serve as a charge compensator or to create NBOs is further complicated by observations that cations with different field strengths can behave differently in modifying the aluminosilicate or boroaluminosilicate network structures.…”

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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Analysis of structure evolution and performance in alkali-free glass substrates via XPS and infrared: Boron-aluminum anomaly

Cited by 41 publications

References 69 publications

Influence of structural change by heat treatment on the wettability of borosilicate glass

Influence of structural change by heat treatment on the wettability of borosilicate glass

Network Structure and Properties of Lithium Aluminosilicate Glass

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

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