SiO2–Na2O–B2O3 density: A comparison of experiments, simulations, and theory

Barlet, Marina; Kerrache, Ali; Delaye, Jean‐Marc; Rountree, Cindy

doi:10.1016/j.jnoncrysol.2013.09.022

Cited by 56 publications

(81 citation statements)

References 53 publications

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“…Scientist and engineers use model systems to understand the key components of the more complex glasses [92][93][94]. Many model systems contain three oxides [60,[95][96][97][98][99][100][101][102], two formers and one modifier. In this spirit, the balance of this review is devoted to ternary glass systems.…”

Section: Basic Chemical Composition Of Oxide Glassesmentioning

confidence: 99%

“…R max < R SBM < R d1 = 0.5 + 0.25 * K SBM In this regime, M 2 O begins to form NBO atoms on the silica network. Each M + ion which does not form a [4] B unit connects to the silica network forming a NBO on a silica tetrahedron [60,95,97,101,103,104]. Table 2 presents the equations used to calculate the fraction of Q n elements in the glass.…”

Section: Basic Structural Units In [Siomentioning

confidence: 99%

“…forms NBO atoms on both the silica and borate networks [60,95,97,101,103,104]. For the borate network, [4] B units will be transformed into [3] B units with one (fraction denoted by f 3 ) or two (fraction denoted by f 4 ) NBO atoms and one or two M + ions nearby, respectively.…”

Section: Basic Structural Units In [Siomentioning

confidence: 99%

“…In general, these equations provide an estimate of the number of elementary units in [99]. However, Barlet et al [60] present Gaussian fits for Q n equations based on Maekawa et al data and ideas [105]. Table 3 presents the coefficients of the Gaussian fits.…”

Section: Basic Structural Units In [Siomentioning

confidence: 99%

“…A concerted study of simple ternary glasses as a function of chemical composition will facilitate the development of our understanding and ultimately lead to better glass products. This review, in conjunction with Barlet et al works [23,[60][61][62][63][64][65][66], represents a step in this direction. [41]).…”

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confidence: 93%

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Recent progress to understand stress corrosion cracking in sodium borosilicate glasses: linking the chemical composition to structural, physical and fracture properties

Rountree¹

2017

J. Phys. D: Appl. Phys.

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HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés. Recent IntroductionOxide glasses are among the oldest industrial materials known to man, and they are widely used due to their advantageous properties: transparency, low thermal expansion, high melting point temperature, relative inertness, etc. Yet, oxide glasses are not without significant shortcomings. In par ticular, they remain inherently brittle, despite significant scientific ingenuity to overcome this drawback. Moreover, they undergo abrupt catastrophic failure. Frequently, post-mortem failure studies reveal material flaws which were propagating via stress corrosion cracking. Understanding and predicting the growth of such flaws under sub-critical crack propagation remains a hurdle for scientists. Furthermore, how the basic glass network (i.e. the interconnect of the glass structure) dictates the physical, mechanical and stress corrosion cracking AbstractThis topical review is dedicated to understanding stress corrosion cracking in oxide glasses and specifically the SiO 2 B 2 O 3 Na 2 O (SBN) ternary glass systems. Many review papers already exist on the topic of stress corrosion cracking in complex oxide glasses or overly simplified glasses (pure silica). These papers look at how systematically controlling environmental factors (pH, temperature...) alter stress corrosion cracking, while maintaining the same type of glass sample. Many questions still exist, including: What sets the environmental limit? What sets the velocity versus stress intensity factor in the slow stress corrosion regime (Region I)? Can researchers optimize these two effects to enhance a glass' resistance to failure? To help answer these questions, this review takes a different approach. It looks at how systemically controlling the glass' chemical composition alters the structure and physical properties. These changes are then compared and contrasted to the fracture toughness and the stress corrosion cracking properties. By taking this holistic approach, researchers can begin to understand the controlling factors in stress corrosion cracking and how to optimize glasses via the initial chemical composition.

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Section: Basic Chemical Composition Of Oxide Glassesmentioning

confidence: 99%

Section: Basic Structural Units In [Siomentioning

confidence: 99%

Section: Basic Structural Units In [Siomentioning

confidence: 99%

Section: Basic Structural Units In [Siomentioning

confidence: 99%

mentioning

confidence: 93%

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Recent progress to understand stress corrosion cracking in sodium borosilicate glasses: linking the chemical composition to structural, physical and fracture properties

Rountree¹

2017

J. Phys. D: Appl. Phys.

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Effect of Y³⁺ on the structural and photoluminescence properties of yttrium‐doped sodium borate glass

et al. 2022

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Glass of the composition 70%B2O3‐(30‐x)%Na2O‐x%Y2O3 with x = 0, 0.5, 1, 1.5, 2, and 2.5 mol% was manufactured using the melt quenching method. X‐ray diffraction tests indicated the amorphous structure of the glass, with the presence of some YBO3 clusters in the high yttrium content samples. Fourier transform infrared spectra analysis proved the presence of different borate groups and linkages, in addition to nonsystematic changes in the ratio BO3/BO4 in the glass. The forming ability of the glass was found to be approximately stable for the low Y3+ content samples and increased for the heavily doped samples. The density of the samples was found to increase as the Y3+ concentration was increased, whereas the molar volume decreased. The bond strength of the examined glass suggested that a covalent nature was dominant between bonds. All the Y3+‐doped glass was found to emit greenish‐cyan light when excited at λex=3650.25emnm. Photoluminescence intensity was shown to be enhanced by the generated YBO3 groups. The obtained correlated colour temperature values with 82.5% purity recommend the suitability of the glass for applications in outdoor illumination.

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Effects of Surface Orientation and Termination Plane on Glass‐to‐Crystal Transformation of Lithium Disilicate by Molecular Dynamics Simulations

Sun

Dierolf

Jain

2020

Physica Status Solidi (b)

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Glass‐to‐crystal transformation of lithium disilicate is studied using molecular dynamics simulations using an effective partial charge potential. The structural evolution of the interface between glassy and crystalline lithium disilicate is analyzed to simulate crystallization of glass on pre‐existing crystal seeds. Besides previously used atomic number density, the distribution of Qn species (Si tetrahedra with n bridging oxygen) is shown to be an effective parameter for following this transformation quantitatively. The early stages of crystal growth are significantly affected by the orientation and termination of the surface of adjacent crystal, as indicated by calculated atomic density, partial ordering, atomic segregation, and an increase in Q3 concentration. In particular, under‐coordinated Si within the outer crystal layer is found to be most effective in transforming the amorphous structure toward crystallinity. The increase in Q3 in the glass close to interface region most clearly shows the initial stage of lithium disilicate crystal growth.

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SiO2–Na2O–B2O3 density: A comparison of experiments, simulations, and theory

Cited by 56 publications

References 53 publications

Recent progress to understand stress corrosion cracking in sodium borosilicate glasses: linking the chemical composition to structural, physical and fracture properties

Recent progress to understand stress corrosion cracking in sodium borosilicate glasses: linking the chemical composition to structural, physical and fracture properties

Effect of Y³⁺ on the structural and photoluminescence properties of yttrium‐doped sodium borate glass

Effects of Surface Orientation and Termination Plane on Glass‐to‐Crystal Transformation of Lithium Disilicate by Molecular Dynamics Simulations

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SiO2–Na2O–B2O3 density: A comparison of experiments, simulations, and theory

Cited by 56 publications

References 53 publications

Recent progress to understand stress corrosion cracking in sodium borosilicate glasses: linking the chemical composition to structural, physical and fracture properties

Recent progress to understand stress corrosion cracking in sodium borosilicate glasses: linking the chemical composition to structural, physical and fracture properties

Effect of Y3+ on the structural and photoluminescence properties of yttrium‐doped sodium borate glass

Effects of Surface Orientation and Termination Plane on Glass‐to‐Crystal Transformation of Lithium Disilicate by Molecular Dynamics Simulations

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Effect of Y³⁺ on the structural and photoluminescence properties of yttrium‐doped sodium borate glass