Study on structural, dielectric, thermal and chemical characteristics of aluminoborosilicate glasses doped by rare earth oxides

Xu, Kun; Zhang, L.; Pan, Hailong; Zhao, Jiling; Jia, Xiang; Wang, G.; Wu, Hai

doi:10.1179/1753555714y.0000000132

Cited by 7 publications

(3 citation statements)

References 16 publications

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“…4 Another study, 5 on magnesium hydroxide/aluminium doped zinc oxide nanocomposite catalysts, reveals that photocatalytic performance is dependent not only on materials composition but also on how the nano-architectures are assembled. This is one of three contributions [5][6][7] addressing the cost effective synthesis of novel materials for catalytic and energy efficiency/harvesting applications. Doping of aluminoborosilicate glasses with rare earth oxide network modifiers has potential to improve optical properties, dielectric loss and thermal and chemical durability in applications such as solar cells and high performance printed circuit boards.…”

Section: Advances In Functional Materials For Sustainable Technologymentioning

confidence: 99%

“…Doping of aluminoborosilicate glasses with rare earth oxide network modifiers has potential to improve optical properties, dielectric loss and thermal and chemical durability in applications such as solar cells and high performance printed circuit boards. 7 A further contribution considers the capture of CO 2 by a catalytic route employing the enzyme carbonic anhydrase II in a stabilised and immobilised state on an inorganic substrate. 8 Carbon is transferred from the gas to the liquid phase and subsequently precipitated as carbonate.…”

Section: Advances In Functional Materials For Sustainable Technologymentioning

confidence: 99%

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Advances in functional materials for sustainable technology

LiProfessor¹

2014

Materials Technology

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Section: Advances In Functional Materials For Sustainable Technologymentioning

confidence: 99%

Section: Advances In Functional Materials For Sustainable Technologymentioning

confidence: 99%

Advances in functional materials for sustainable technology

LiProfessor¹

2014

Materials Technology

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“…Sheng et al found the degree of polymerization of glass first increases and then decreases with the increase of doping content of La 2 O 3 [ 13 ]. Based on the existing literature, it can be considered that the content of La 2 O 3 has a great influence on the structure and properties of glass [ 14 , 15 , 16 ]. But the study of La 2 O 3 -doped basaltic glasses is rare.…”

Section: Introductionmentioning

confidence: 99%

Study on Structure and Properties of La2O3-Doped Basaltic Glasses for Immobilizing Simulated Lanthanides

et al. 2021

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The La2O3-doped basaltic glass simulated high-level waste form (HLW) was prepared by the solid-state melt method. The simulated waste La2O3 maximum loading and the doping effect on structure, thermal stability, leaching behavior, density, and hardness of basaltic glasses were studied. XRD and SEM results show that the simulated waste loading of La2O3 in basaltic glass can be up to ~46 wt.%, and apatite (CaLa4(SiO4)3O) precipitates when the content of La2O3 reaches 56 wt.%. Raman results indicate that the addition of La2O3 breaks the Si–O–Si bond of large-membered and four-membered, but the number of A13+ involved in the formation of the network increase. Low content of La2O3 can help to repair the glass network, but it destroys the network as above 26 wt.%. DSC results show the thermal stability of simulated waste forms first increases and then decreases with the increase of La2O3 content. With the increase of La2O3 content, the density of the simulated waste form increases, and the hardness decreases. The leaching chemical stability of samples was evaluated by the ASTM Product Consistency Test (PCT) Method, which show that all the samples have good chemical stability. The leaching rates of La and Fe are three orders of magnitude lower than those of the other elements. Among them, L36 has the best comprehensive leaching performance.

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Dielectric behavior in erbium-doped tellurite glass for potential high-energy capacitor

Azlan

Shafinas

Halimah

et al. 2019

J Mater Sci: Mater Electron

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The use of erbium ions, Er3+ to enhance the dielectric properties is investigated in tellurite glass system for the first time, to the best of our knowledge. A glass series of tellurite glass with chemical composition, {[(TeO2)70(B2O3)30]70(ZnO)30}100−y (Er2O3)y (y = 0, 0.005, 0.01, 0.02, 0.03, 0.04 and 0.05) was fabricated via meltquenched technique. The X-ray diffraction and Fourier transform infrared spectroscopy analysis proved the amorphous structure and the formation of nonbridging oxygen in the glass system. The Er3+ ions affect greatly to the dielectric constant, ε′ in which the dielectric constant, ε′ show high value at a lower frequency and higher temperature (above 110 °C). The reduction of dielectric constant, ε′ is found with the increment value of frequency, which corresponds to the formation of the hindrance effect on heavy dipoles caused by the mixed transition-ion effect. Meanwhile, the dielectric constant, ε′ is enhanced with the increase of temperature. The activation energy of the glass system is found to decrease, which is due to the high polarizability of Er3+ ions in the glass system. Based on these results, the erbium-doped tellurite glass is a potential kind of high-energy capacitor.

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Study on structural, dielectric, thermal and chemical characteristics of aluminoborosilicate glasses doped by rare earth oxides

Cited by 7 publications

References 16 publications

Advances in functional materials for sustainable technology

Advances in functional materials for sustainable technology

Study on Structure and Properties of La2O3-Doped Basaltic Glasses for Immobilizing Simulated Lanthanides

Dielectric behavior in erbium-doped tellurite glass for potential high-energy capacitor

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