Water diffusion into silica glass: Structural changes in silica glass and their effect on water solubility and diffusivity

Davis, Ken; Tomozawa, M.

doi:10.1016/0022-3093(95)00015-1

Cited by 202 publications

(243 citation statements)

References 19 publications

Supporting

Mentioning

223

Contrasting

Order By: Relevance

“…The lower durability of this composition in relation to other compositions studied is due to the relatively low percentage of silica and high percentage of soda in this glass (see Table 1). In all cases, slightly increased noise in the data for hydrated samples at lower end is due to increased surface roughness associated with surface deterioration [7][8][9] as discussed in the next section. Overestimation of reduced modulus values at <10 nm depth for SLS1 and SLS2 samples is presumably due to their higher moduli than silica (see Table 2) when compared to that of pure silica used for calibrating the indenter area function (69.9 GPa).…”

Section: Nanoindentation and Data Analysismentioning

confidence: 81%

“…This noise in attributed to the increased surface roughness associated with the surface deterioration caused by hydration. [7][8][9] Factors that affect the deterioration rate of the glass surface are composition, the state of the surface and environment. 8 In present work surface roughness is kept to a minimum and water is being used as an environment, thus deterioration rate is mainly affected by the glass composition.…”

Section: Surface Deterioration Effect Of Surface Roughness On Accuramentioning

confidence: 99%

“…[1][2][3][4][5][6][7] Hydration degrades the surface of the glass [7][8][9] and may affect glass strength due to interaction of hydrated layer with strength controlling defects. 9,10 Although, the phenomenon of glass surface hydration is still not fully understood, most researchers agree that hydration involves several competing processes, the most significant of which are leaching (often referred to as ion exchange) and network dissolution.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Surface hydration and nanoindentation of silicate glasses

Tadjiev

Hand

2010

Journal of Non-Crystalline Solids

View full text Add to dashboard Cite

The near-surface mechanical properties of glasses and differences in mechanical behaviour between high and low durability silicate glasses are investigated. Nanoindentation is used to examine the effect of hydration on the nearsurface mechanical properties of silicate glasses with varying degrees of chemical durability. It is shown that hydration has little if any effect on high durability glasses even at long immersion times, whereas in low durable glasses hydration reduces the near-surface mechanical properties significantly and the thickness of hydrated layer may exceed the indentation depth. In addition an attempt is made to measure the thickness and mechanical properties of hydrated layer in low durability glasses where influence of the substrate is negligible. : 61.43.Fs; 81.05.Kf PACSs

show abstract

Section: Nanoindentation and Data Analysismentioning

confidence: 81%

Section: Surface Deterioration Effect Of Surface Roughness On Accuramentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Surface hydration and nanoindentation of silicate glasses

Tadjiev

Hand

2010

Journal of Non-Crystalline Solids

View full text Add to dashboard Cite

show abstract

“…Glasses manufactured using standard melt technologies always contain residual water [84,85]. Water can exist in, and diffuse through, glass as both molecular water (H 2 O) and hydroxyl (OH) [86,87]. The mobile species, molecular water, can diffuse into and react with the silica to produce immobile hydroxyl by the reaction H 2 O + "Si-O-Si" ô 2"Si-OH.…”

Section: Interaction With Watermentioning

confidence: 99%

Glass Fibre Strength—A Review with Relation to Composite Recycling

Thomason

Jenkins

Yang

2016

Fibers

View full text Add to dashboard Cite

Abstract:The recovery and reuse of glass fibres from manufacturing waste and end-of-life composites in an environmentally-friendly, cost-effective manner is one of the most important challenges facing the thermosetting polymer composites industry. A number of processes for recycling fibres from such materials are available or under development. However, nearly all options deliver recycled glass fibres that are not cost-performance competitive due to the huge drop in strength of recycled glass fibre compared to its original state. A breakthrough in the regeneration of recycled glass fibre performance has the potential to totally transform the economics of recycling such composites. This paper reviews the available knowledge of the thermally-induced strength loss in glass fibres, discusses some of the phenomena that are potentially related and presents the status of research into processes to regenerate the strength and value of such weak recycled glass fibres.

show abstract

“…The preferential corrosive role of water molecules at the crack tip sustaining tensile stresses is generally acknowledged 1,2,3,4 . Wiederhorn et al have developed a model that fits well the experimental data and shows how -in the stress corrosion regime -crack velocity is highly dependent on relative humidity 2,3 , and can be limited by transport kinetics of the water molecules towards the crack tip.…”

Section: Introductionmentioning

confidence: 99%