The structure of zinc polyphosphate glass studied by diffraction methods and 31P NMR

Walter, G.; Hoppe, Uwe; Vogel, J.; Carl, G.; Hartmann, Peter

doi:10.1016/j.jnoncrysol.2003.12.054

Cited by 72 publications

(81 citation statements)

References 34 publications

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“…Using the Eqs. for the Mg phosphate glasses, respectively, from the second moment of the particle scattering curves, I P (s), as given by (7). The uncertainties in ðDqÞ 2 were calculated by error propagation applied to (7).…”

Section: Resultsmentioning

confidence: 99%

“…By varying the crucible material used for preparing zinc polyphosphate glasses, i.e., amorphous carbon instead of silica, while the melting conditions were kept constant, it was found [7] that the small angle scattering effects detected are not associated with the residual silica analyzed in these glasses.…”

Section: Origin Of the Small Angle Scattering Effectmentioning

confidence: 99%

“…It has been shown [4,7,20] that there are not any crystalline peaks in the concerning intensity functions measured for magnesium and zinc phosphate glasses in the interval of s values between 0.3 and 38 nm À1 . Thus it can be excluded that the occurring small angle X-ray scattering originates from crystalline regions in the samples.…”

Section: Origin Of the Small Angle Scattering Effectmentioning

confidence: 99%

“…To get an idea of the heterogeneities existing in the Mg and Zn polyphosphate concentration range some results obtained in previous studies [6,7,24] by wide angle diffraction and 31 P MAS-NMR are worth considering. The Zn 2+ and the Mg 2+ ions possess highest electric field strength (0.52 · 10 20 m À2 for Zn 2+ , 0.53 · 10 20 m À2 for Mg 2+ [25]) among the mono and divalent modifier ions under discussion.…”

Section: Small-scale Heterogeneities In Magnesium and Zinc Phosphate mentioning

confidence: 99%

“…For the first time, small angle X-ray scattering experiments on metaphosphate glasses were reported in 1990 [4] which have shown that small heterogeneities of electron density of about 1 nm size are present in magnesium metaphosphate glass. More recently, the presence of such heterogeneities was established in a zinc polyphosphate and a sodium-zinc pyrophosphate glass by small angle X-ray scattering [5] and in magnesium [6] and zinc polyphosphate glasses [7] with varying composition. Moreover, a pronounced scattering at smallest s values was reported to be measured with X-rays for zinc phosphate glasses [7] and with neutrons for iron phosphate glass [8].…”

Section: Introductionmentioning

confidence: 99%

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The structure of phosphate glass evidenced by small angle X-ray scattering

Walter

Goerigk

Rüssel

2006

Journal of Non-Crystalline Solids

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Numerous phosphate glass systems with compositions covering the entire glass forming range have been examined by small angle Xray scattering. The experiments were carried out in a widely extended interval of s values between 0.055 and 31 nm À1 . A small angle scattering effect was detected for all samples investigated with the exception of the aluminium metaphosphate glass. The small angle scattering recorded indicates the presence of two differently-sized heterogeneity regions of electron density. The small-scale heterogeneities are present in magnesium and zinc phosphate glasses only. Their size is about 1 nm diameter in the magnesium and about 2 nm in the zinc phosphate glasses. The species do not result from liquid-liquid phase separation. Examinations to extract information on the nature of these heterogeneity regions are described in detail. There is no fundamental knowledge on the large-scale heterogeneities established. The small angle scattering suggests that their occurrence is related to water contamination. Anomalous small angle X-ray scattering experiments of a series of zinc polyphosphate glasses and a strontium metaphosphate glass sample are performed to examine the distribution of the Zn or Sr atoms, respectively.

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Section: Resultsmentioning

confidence: 99%

Section: Origin Of the Small Angle Scattering Effectmentioning

confidence: 99%

Section: Origin Of the Small Angle Scattering Effectmentioning

confidence: 99%

Section: Small-scale Heterogeneities In Magnesium and Zinc Phosphate mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The structure of phosphate glass evidenced by small angle X-ray scattering

Walter

Goerigk

Rüssel

2006

Journal of Non-Crystalline Solids

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Metal Phosphate Low‐Melting Glasses Prepared by a Non‐Aqueous Acid‐Base Reaction

Menaa

Mizuno

Takahashi

et al. 2006

Advances in Glass and Optical Materials II

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Correlation between Structures and Physical Properties of Binary ZnO–P₂O₅ Glasses

Masai

Onodera

Kohara

et al. 2020

Physica Status Solidi (b)

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The structures and various corresponding physical parameters of non‐crystalline materials have attracted much attention owing to their wide diversity. Because solving the structure of glass is one of the most challenging issues in glass science, it is essential to combine several experimental and modeling techniques. Herein, the physical properties and structures at different length scales of binary zinc phosphate (ZP) glass are examined using different probes. The 3D structures constructed by reverse Monte Carlo modeling based on the datasets of 31P nuclear magnetic resonance, neutron and X‐ray diffraction, and Zn K‐edge X‐ray absorption fine structure indicate that the volume fraction and the connectivity of cavities in these ZP glasses vary significantly depending on the chemical composition. In addition, the compositional‐dependent modification of the network structure is examined through the diffraction peaks in X‐ray and neutron data, the boson peak of Raman scattering, and positron annihilation lifetime data. Furthermore, the correlations between structural parameters at different length scales are discussed using statistical principal component analysis. It is demonstrated that such numerical analysis based on the experimental results is important not only for simple oxide systems, but also for multicomponent glass systems.

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The structure of zinc polyphosphate glass studied by diffraction methods and 31P NMR

Cited by 72 publications

References 34 publications

The structure of phosphate glass evidenced by small angle X-ray scattering

The structure of phosphate glass evidenced by small angle X-ray scattering

Metal Phosphate Low‐Melting Glasses Prepared by a Non‐Aqueous Acid‐Base Reaction

Correlation between Structures and Physical Properties of Binary ZnO–P₂O₅ Glasses

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The structure of zinc polyphosphate glass studied by diffraction methods and 31P NMR

Cited by 72 publications

References 34 publications

The structure of phosphate glass evidenced by small angle X-ray scattering

The structure of phosphate glass evidenced by small angle X-ray scattering

Metal Phosphate Low‐Melting Glasses Prepared by a Non‐Aqueous Acid‐Base Reaction

Correlation between Structures and Physical Properties of Binary ZnO–P2O5 Glasses

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Correlation between Structures and Physical Properties of Binary ZnO–P₂O₅ Glasses