Crystallization behavior, densification and microwave dielectric properties of MgO-Al2O3-SiO2-TiO2 system glass-ceramics containing V2O5

Liu, Fei; Huang, Xiaomin; Qu, Jingjing; Yuan, Changlai; Chen, Guohua; Ma, Ruofei

doi:10.1016/j.jnoncrysol.2017.11.017

Cited by 20 publications

(3 citation statements)

References 17 publications

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“…V 2 O 5 and ZnO additions were shown to delay the crystallization process in BaO–CaO–SiO 2 glasses 13 . In MgO–Al 2 O 3 ‐SiO 2 –TiO 2 ‐based glasses, the addition of 1.0–1.2 mol% of V 2 O 5 was found to increase the degree of crystallization after a two‐step heat treatment process 14 and, in Li 2 O–BaO–SiO 2 ‐based glasses, V 2 O 5 decreases the glass stability and acts as a nucleating agent 15 . The crystallization of glasses in the ternary CaO–ZrO 2 ‐SiO 2 system doped with ~0.0‐5.0 mol % V 2 O 5 was found to be predominantly controlled by a surface nucleation mechanism with the crystallization activation energy values showing a parabolically decreasing trend 16 .…”

Section: Introductionmentioning

confidence: 99%

Role of vanadium oxide on the lithium silicate glass structure and properties

et al. 2021

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The structural role of V in 28Li2O–72SiO2 (in mol%) lithium silicate glass doped with 0.5 mol% V2O5 was assessed using 29Si and 51V Nuclear Magnetic Resonance (NMR), Fourier‐transform infrared (FTIR), and X‐ray photoelectron (XPS) spectroscopy techniques. Despite the low amount of V2O5 used, the structural information obtained or deduced from the statistical analysis of the NMR data could explain the evolution of glass properties after V2O5 addition. The XPS results indicated that all vanadium exists in 5+ oxidation state. Both the 29Si NMR and FTIR data point toward an increase in the polymerization of the silicate network, caused by the V2O5 acting as network former, capable to form various QVn tetrahedral units (for n = 0, 1, and 2) in the glasses. These QVn units, which are similar to phosphate units, scavenge the Li+ ions and cause the silicate network to polymerize. However, in an overall balance, the entire glass network is depolymerized due to the additional nonbridging oxygens contributed by the vanadium polyhedra. The addition of vanadium causes the network to expand and increases the ionic conductivity.

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Section: Introductionmentioning

confidence: 99%

Role of vanadium oxide on the lithium silicate glass structure and properties

et al. 2021

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“…Due to their excellent microwave performances, 1 high mechanical properties, 2 adjustable coefficient of thermal expansion, 3 and possible applications in various novel fields, [4][5][6] for example, electronic packing devices, millimeter-wave dielectrics or hard disk substrates, glass ceramics in the MgO-Al 2 O 3 -SiO 2 system have been extensively studied over the past several decades. To alter the nature of exclusive surface crystallization in the stoichiometric cordierite composition (2MgOÁ2Al 2 O 3 Á 5SiO 2 ), extensive research has focused on nucleating agents, such as TiO 2 , ZrO 2 , CeO 2 , or P 2 O 5 .…”

Section: Introductionmentioning

confidence: 99%

Impacts of substituting magnesium with zinc on crystallization behaviors in an aluminosilicate glass

Huang,

Zheng,

Cai

et al. 2024

Phys. Chem. Chem. Phys.

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“…[ 11 ] Liu studied the influence of V 2 O 5 on the sintering and dielectric characteristics of the MAS samples. [ 12 ] Kumari discussed the impacts of BaTiO 3 on the dielectric characteristics of the MAS‐based glass ceramics. [ 13 ] The development of high‐performance glass ceramics depends upon the use of suitable heat‐treatment procedures.…”

Section: Introductionmentioning

confidence: 99%

The Crystallization, Microstructure, and Dielectric Characteristics of MgO–Al₂O₃–SiO₂–TiO₂–CeO₂ Materials for Microwave Applications

Liao,

Su,

Tan

et al. 2023

Physica Status Solidi (a)

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In this paper, we investigated the impacts of varying CeO2 contents and heat‐treatment procedures on the crystallization, and microstructure, and dielectric characteristics of MgO‐Al2O3‐SiO2‐TiO2‐CeO2 (MASTC) materials. The research indicated that perrierite, and rutile, and α‐cordierite were the major crystalline phases in the materials. An increased CeO2 content promoted the formation of perrierite and inhibited the precipitation of α‐cordierite and rutile in the glass‐ceramics. An appropriate amount of CeO2 content contributed to a dense microstructure and improved the dielectric characteristics of the samples. However, an excessive amount of CeO2 deteriorated the densification and dielectric characteristics of the MASTC materials. Furthermore, heat‐treatment temperature and duration also had a significant impacts on the crystallization, microstructure, and dielectric performance of the materials. The MASTC material with 20.2 wt% CeO2, heat‐treated at 1100 oC for a duration of 3 h possessed superior characteristics with a density of 3.14 g/cm3, a permittivity of 11.1, and a Q×f factor of 17357 (14 GHz).This article is protected by copyright. All rights reserved.

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Crystallization behavior, densification and microwave dielectric properties of MgO-Al2O3-SiO2-TiO2 system glass-ceramics containing V2O5

Cited by 20 publications

References 17 publications

Role of vanadium oxide on the lithium silicate glass structure and properties

Role of vanadium oxide on the lithium silicate glass structure and properties

Impacts of substituting magnesium with zinc on crystallization behaviors in an aluminosilicate glass

The Crystallization, Microstructure, and Dielectric Characteristics of MgO–Al₂O₃–SiO₂–TiO₂–CeO₂ Materials for Microwave Applications

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Crystallization behavior, densification and microwave dielectric properties of MgO-Al2O3-SiO2-TiO2 system glass-ceramics containing V2O5

Cited by 20 publications

References 17 publications

Role of vanadium oxide on the lithium silicate glass structure and properties

Role of vanadium oxide on the lithium silicate glass structure and properties

Impacts of substituting magnesium with zinc on crystallization behaviors in an aluminosilicate glass

The Crystallization, Microstructure, and Dielectric Characteristics of MgO–Al2O3–SiO2–TiO2–CeO2 Materials for Microwave Applications

Contact Info

Product

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The Crystallization, Microstructure, and Dielectric Characteristics of MgO–Al₂O₃–SiO₂–TiO₂–CeO₂ Materials for Microwave Applications