Crystallization, microstructure and dielectric properties of the SrO-BaO-Nb2O5-Al2O3-SiO2 based glass ceramics added with ZrO2

Liu, Shaohui; Wang, Jiao; Ding, Jun; Hao, Haoshan; Zhao, Limin; Xia, S.K.

doi:10.1016/j.ceramint.2018.11.076

Cited by 20 publications

(2 citation statements)

References 26 publications

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“…Extensive research has been conducted on SiO 2 –B 2 O 3 –Nb 2 O 5 glass-ceramics. − Chen et al conducted research on the fabrication of SiO 2 –B 2 O 3 –Nb 2 O 5 glass-ceramics. After undergoing heat treatment at 800 °C for 3 h followed by 950 °C for 3 h, the primary crystal phase that precipitated was Ba 0.27 Sr 0.75 Nb 2 O 5.78 , with NaSr 1.2 Ba 0.8 Nb 5 O 15 phase as the secondary phase.…”

Section: Introductionmentioning

confidence: 99%

Formation of Niobate Complex Glass-Ceramic and Effect of Crystal Nucleates on Dielectric Properties

Guo,

Zhu,

Bai

et al. 2024

Crystal Growth & Design

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Glass-ceramics have great potential as a dielectric material in energy storage. Grain refinement is an effective measure to improve the energy storage performance of dielectric materials. In this study, NaNbO 3 −Ba 0.27 Sr 0.75 Nb 2 O 6 (NN-BSN) complex glass-ceramic was prepared through the investigation and design of heat-treatment processes. The NN perovskite structure and BSN tungsten bronze structure are comparable, and heat treatment was employed to encapsulate the two phases, thereby achieving grain refinement. High-resolution transmission electron microscopy (HR-TEM) images were measured using Gatan Digital software, revealing a maximum lattice spacing of 0.067 nm in the selected area and a maximum interplanar spacing of 0.003 nm −1 in the SAED pattern. Furthermore, the influence of ZrO 2 and TiO 2 , with equal content, on the material structure and performance stability was studied. Raman analysis revealed that ZrO 2 exists as an intermediate network in the structure, resulting in good high-temperature stability of the samples. TiO 2 acted as a crystal nucleating agent, promoting grain growth and enhancing the polarization performance of the samples.

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Section: Introductionmentioning

confidence: 99%

Formation of Niobate Complex Glass-Ceramic and Effect of Crystal Nucleates on Dielectric Properties

Guo,

Zhu,

Bai

et al. 2024

Crystal Growth & Design

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“…Glass-ceramics are a composite material of ceramic phases and glass, crystallized via a glass-melting process and temperature control [1]. In comparison to pure ceramics, glass-ceramics exhibit a remarkable reduction in pore volume.…”

Section: Introductionmentioning

confidence: 99%

Microstructure, Dielectric Properties and Bond Characteristics of Lithium Aluminosilicate Glass-Ceramics with Various Li/Na Molar Ratio

Li,

Kong,

Wang

et al. 2023

Crystals

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The advent of 5G technology presented new challenges regarding the high-frequency characteristics of electrical signals and their impact on the cover glass properties of electronic devices. This study aimed to analyze the effect of the Li/Na molar ratio on the dielectric and mechanical properties, as well as the structural characteristics, of lithium aluminosilicate glass-ceramics. Using the melting method, we prepared lithium aluminosilicate base glasses and subsequently crystallized them by adjusting the molar ratio. XRD and TEM analyses were employed to investigate the resultant structures and crystal formation in the five base glasses. It was observed that Li2Si2O5 and LiAlSi4O10 crystals precipitated, exhibiting varying degrees of crystallinity and crystal ratios. Through a comparison of dielectric properties before and after crystallization, it was found that the dielectric constants of the glass-ceramics were consistently reduced. This decrease can be attributed to the lower dielectric constants exhibited by both crystalline phases compared to the parent lithium aluminosilicate glasses. Furthermore, the presence of glass crystals effectively immobilized the alkali metal ions within the glass phase, impeding their movement under an electric field. Consequently, the dielectric loss value of the glass-ceramics decreased with the increasing amount of precipitated crystals. By carefully adjusting the composition and optimizing the crystallization process, we successfully produced lithium aluminosilicate glass-ceramics, demonstrating excellent mechanical and optical properties, coupled with low dielectric properties.

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Glass–ceramics: A Potential Material for Energy Storage and Photonic Applications

Chakrabarti¹,

Menon²,

Tarafder³

et al. 2022

Advanced Structured Materials

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Crystallization, microstructure and dielectric properties of the SrO-BaO-Nb2O5-Al2O3-SiO2 based glass ceramics added with ZrO2

Cited by 20 publications

References 26 publications

Formation of Niobate Complex Glass-Ceramic and Effect of Crystal Nucleates on Dielectric Properties

Formation of Niobate Complex Glass-Ceramic and Effect of Crystal Nucleates on Dielectric Properties

Microstructure, Dielectric Properties and Bond Characteristics of Lithium Aluminosilicate Glass-Ceramics with Various Li/Na Molar Ratio

Glass–ceramics: A Potential Material for Energy Storage and Photonic Applications

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