Network and void structures for glasses with a higher resistance to crack formation

Ito, Setsuro; Taniguchi, Tadatsugu; Ono, Madoka; Uemura, Ken

doi:10.1016/j.jnoncrysol.2012.02.039

Cited by 9 publications

(5 citation statements)

References 32 publications

(38 reference statements)

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“…However, the intensity of the B 2 band, which is attributed to the existence of four ( D 1 band from Hehlen and Neuville 67 ) or three ( D 2 band from Hehlen and Neuville 67 ) membered rings 30 is disproportionately higher relative to the B 1 band in the A 0 S 75 N 12 and A 0.5 S 74 N 12.5 glasses studied here (Figure 8A‐B), unlike in other glass series. This might indicate that in soda‐lime‐silica glasses in which Al 2 O 3 is absent or at very low levels formation of smaller rings is promoted, which may lower brittleness owing to increased shear flow 68 . This could be an underlying reason for the improved brittleness in CaO‐rich or low‐Al 2 O 3 glasses lying in the wollastonite and silica phase fields, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…This might indicate that in soda-lime-silica glasses in which Al 2 O 3 is absent or at very low levels formation of smaller rings is promoted, which may lower brittleness owing to increased shear flow. 68 This could be an underlying reason for the improved brittleness in CaOrich or low-Al 2 O 3 glasses lying in the wollastonite and silica phase fields, respectively.…”

Section: Glass Idmentioning

confidence: 99%

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Effects of composition and phase relations on mechanical properties and crystallization of silicate glasses

et al. 2021

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Section: Resultsmentioning

confidence: 99%

Section: Glass Idmentioning

confidence: 99%

Effects of composition and phase relations on mechanical properties and crystallization of silicate glasses

et al. 2021

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“…Abundant voids are formed in glass materials in the vitrification process. − The voids formed in 1g contribute to the access of CO 2 and BIH in the subsurface. CO 2 permeability of 1g-9 was evaluated.…”

Section: Resultsmentioning

confidence: 99%

Heterogenous CO₂ Reduction Photocatalysis of Transparent Coordination Polymer Glass Membranes Containing Metalloporphyrins

et al. 2023

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Transparent and grain boundary-free substrates are essential to immobilize molecular photocatalysts for efficient photoirradiation reactions without unexpected light scattering and absorption by the substrates. Herein, membranes of coordination polymer glass immobilizing metalloporphyrins were examined as a heterogeneous photocatalyst for carbon dioxide (CO 2 ) reduction under visible-light irradiation. [Zn(HPO 4 )-(H 2 PO 4 ) 2 ](ImH 2 ) 2 (Im = imidazolate) liquid containing iron(III) 5,10,15,20-tetraphenyl-21H,23H-porphine chloride (Fe(TPP)Cl, 0.1-0.5 w/w%) was cast on a borosilicate glass substrate, followed by cooling to room temperature, resulting in transparent and grain boundary-free membranes with the thicknesses of 3, 5, and 9 μm. The photocatalytic activity of the membranes was in proportion to the membrane thickness, indicating that Fe(TPP)Cl in the subsurface of membranes effectively absorbed light and contributed to the reactions. The membrane photocatalysts were intact during the photocatalytic reaction and showed no recrystallization or leaching of Fe(TPP)Cl.

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“…Fluctuation decreases only if the voids shrink selectively due to pressure. Previously, we calculated the distribution of the relative void volume against the void radius under compression [12] (Fig. 5).…”

Section: Reduction Of Rayleigh Scattering Loss In Silica Glassmentioning

confidence: 99%

“…Fig. 5 Calculation results [12] . Void distribution under compression at strains of 0 and 0.4 for SiO2 (denoted as S) and 20Na2O-80SiO2 (in mol denoted as 20N80S) glass.…”

Section: Reduction Of Rayleigh Scattering Loss In Silica Glassmentioning

confidence: 99%

Void Engineering in Silica Glass for Ultralow Optical Scattering Loss

Ono

2021

J. Lightwave Technol.

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Optical losses in silica glass fibers remain a challenge in their applications. The main contributor to optical attenuation is Rayleigh scattering. This review discusses the recent studies and findings on voids in silica glass and their effects on the optical loss. Through experimental studies of pressure-quenching on glass at the melting temperature, void size shrunk, and the optical loss was reduced to approximately half of that of conventional optical fibers at 0.2 GPa. Our modeling results predicted that further reduction was expected, credited to the optimization of the glass network, called topological pruning, under high compressive pressures of up to 4 GPa.

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Network and void structures for glasses with a higher resistance to crack formation

Cited by 9 publications

References 32 publications

Effects of composition and phase relations on mechanical properties and crystallization of silicate glasses

Effects of composition and phase relations on mechanical properties and crystallization of silicate glasses

Heterogenous CO₂ Reduction Photocatalysis of Transparent Coordination Polymer Glass Membranes Containing Metalloporphyrins

Void Engineering in Silica Glass for Ultralow Optical Scattering Loss

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Network and void structures for glasses with a higher resistance to crack formation

Cited by 9 publications

References 32 publications

Effects of composition and phase relations on mechanical properties and crystallization of silicate glasses

Effects of composition and phase relations on mechanical properties and crystallization of silicate glasses

Heterogenous CO2 Reduction Photocatalysis of Transparent Coordination Polymer Glass Membranes Containing Metalloporphyrins

Void Engineering in Silica Glass for Ultralow Optical Scattering Loss

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Heterogenous CO₂ Reduction Photocatalysis of Transparent Coordination Polymer Glass Membranes Containing Metalloporphyrins