Structural evolution of CeO<sub>2</sub>-doped alkali boroaluminosilicate glass and the correlation with physical properties based on a revised structural parameter analysis

Wang, Zhenlin; Cheng, Laifei

doi:10.1039/c5ra20487a

Cited by 23 publications

(8 citation statements)

References 57 publications

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“…The reason for this was that the severe oxidation was beneficial to With the addition of Ti, the Raman spectra showed peaks located at 548 cm −1 , and the band could be assigned to the Ti-O vibrations and the Si-O-Si bending vibrations [33,34]. In addition, a new band observed at 1016 cm −1 was attributed to the Si-O stretching of Q 2 units [35]. This presented that the oxidation of the alloy with Ti addition was more severe than that of pure Ni 3 Si alloy.…”

Section: Raman Spectrum Analyses Of the Alloysmentioning

confidence: 99%

Friction and Wear Properties of Ni3Si Alloy with Ti Addition at High Temperatures

Niu

Bao

et al. 2020

Materials

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The tribological properties of Ni3Si alloy were studied at high temperatures. The effect of the addition of Ti was also analyzed. The surface composition was analyzed by Raman spectroscopy. The results showed that the friction coefficient decreased with the increasing temperature, and the wear rate changed slightly from 25 to 400 °C. However, the wear resistance of the alloys decreased sharply at 600 °C, and this was due to the decrease of the high-temperature strength and the severe oxidation of the alloys. Although the oxidation resistance of Ni3Si alloy decreased with Ti addition, the tribological property was improved by the addition of Ti. The Ni3Si alloy with 5% Ti addition had the best wear resistance at high temperatures as compared to pure Ni3Si alloy and with 10% Ti addition, and the wear rates of the alloys were in the order of magnitude of 10−5 mm3/Nm. With the increase of temperature, the wear mechanism of pure Ni3Si alloy transformed from abrasive wear to oxidation wear. As the Ti content increased, the wear mechanisms of the alloys changed from abrasive wear to fatigue wear at low temperature, and oxidation wear and fatigue wear at high temperature.

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Section: Raman Spectrum Analyses Of the Alloysmentioning

confidence: 99%

Friction and Wear Properties of Ni3Si Alloy with Ti Addition at High Temperatures

Niu

Bao

et al. 2020

Materials

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“…The digits in brackets are the uncertainty of the least significant number. 40 it can enhance linkage and compactness of the glass structure.…”

Section: Glass Characterization and Crystal Domainsmentioning

confidence: 99%

Precipitation of cerianite crystals and its effect on the rheology of a simplified nuclear glass melt

Jiusti,

Regnier,

Machado

et al. 2023

Int J of Appl Glass Sci

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In France, high‐activity level wastes resulting from nuclear fission are conditioned in a homogeneous sodium‐aluminoborosilicate glass by high‐temperature vitrification. The tolerance of even a small fraction of crystals could enable an increase in the waste loadings, in addition to promoting process flexibility. If the waste loading were to be increased in French nuclear glass, cerianite (CeO2) crystals could precipitate. In this study, we investigated the cerianite crystallization in a simplified nuclear glass melt at different temperatures, Ce2O3 wt%, and shear conditions. Furthermore, the evolution of the viscosity along with cerianite precipitation was followed. It was found that Ce2O3 is highly soluble in the glass melt, as even for a Ce2O3 wt% as high as 10% wt, the cerianite fraction in dynamic conditions at 1100°C after 8 h of crystallization was less than 1% vol. In addition, shear strongly accelerates cerianite crystallization and a high Ce2O3 content can engender the precipitation of highly branched dendrites. The evolution of the cerianite fraction did not significantly affect the viscosity of the glass melt. Finally, unlike what has been observed in the well‐known platinum group metal (PGM)‐bearing melts, a glass melt containing .8 vol% of cerianite crystals remains Newtonian.

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“…Cerium exhibits remarkable properties such as polyvalent states of Ce 4+ + e − → Ce 3+ , electronic transitions between interbond (4f↔5d), and high strength optical absorption in the UV region. [ 6–11 ]…”

Section: Introductionmentioning

confidence: 99%

“…[ 16 ] The glasses doped with Ce 3+ are highly useful in high‐energy physics, UV blocking, quantum cutting, and detection of X‐rays. [ 6–11 ] BaO is chosen as a modifier due to the fact that it provides stability to the glass system and also helps to decrease the melting point of the system. [ 17 ]…”

Section: Introductionmentioning

confidence: 99%

Thermal, structural, optical, and photon shielding studies of cerium‐doped barium tellurite glasses

Grover¹,

Kaur

Pandey³

2023

Luminescence

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A series of tellurite‐based glasses are prepared by using a melt‐quenching method. The effect of cerium on the physical, thermal, structural, optical, spectroscopic, and shielding properties of barium tellurite glass samples is studied. It has been observed that the thermal stability factor increases with increasing cerium ion (Ce3+) concentration. The density and other physical parameters such as ion concentration and molar volume are calculated using the Archimedes principle. An increase in optical band gap and density suggests a decrement in non‐bridging oxygens. These results are in accordance with Raman results. The blue emission in prepared glasses is studied in terms of International Commission on Illumination chromaticity coordinates. Moreover, various shielding properties such as mass attenuation coefficient, linear attenuation coefficient, effective atomic number, half‐value layer, and tenth‐value layer have also been determined to understand the photon shielding characteristics of as‐prepared glass samples.

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Structural evolution of CeO₂-doped alkali boroaluminosilicate glass and the correlation with physical properties based on a revised structural parameter analysis

Abstract: CeO2 ruptures Si(B)–O bonds in reedmergnerite- and danburite-like groups with cerium ion balance charged units enhancing network interconnectivity.

Cited by 23 publications

References 57 publications

Friction and Wear Properties of Ni3Si Alloy with Ti Addition at High Temperatures

Friction and Wear Properties of Ni3Si Alloy with Ti Addition at High Temperatures

Precipitation of cerianite crystals and its effect on the rheology of a simplified nuclear glass melt

Thermal, structural, optical, and photon shielding studies of cerium‐doped barium tellurite glasses

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Structural evolution of CeO2-doped alkali boroaluminosilicate glass and the correlation with physical properties based on a revised structural parameter analysis

Abstract: CeO2 ruptures Si(B)–O bonds in reedmergnerite- and danburite-like groups with cerium ion balance charged units enhancing network interconnectivity.

Cited by 23 publications

References 57 publications

Friction and Wear Properties of Ni3Si Alloy with Ti Addition at High Temperatures

Friction and Wear Properties of Ni3Si Alloy with Ti Addition at High Temperatures

Precipitation of cerianite crystals and its effect on the rheology of a simplified nuclear glass melt

Thermal, structural, optical, and photon shielding studies of cerium‐doped barium tellurite glasses

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Product

Resources

About

Structural evolution of CeO₂-doped alkali boroaluminosilicate glass and the correlation with physical properties based on a revised structural parameter analysis