The effect of boron substitution on the glass-forming ability, phase transformation and optical performance of zinc-boro-soda-lime-silicate glasses

Shofri, Muhammad Faris Syazwan Mohd; Zaid, Mohd Hafiz Mohd; Wahab, Rabiatul Adawiyah Abdul; Sidek, H.A.A.; Fen, Yap Wing

doi:10.1016/j.jmrt.2020.05.022

Cited by 18 publications

(4 citation statements)

References 30 publications

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“…It implied that greater amounts of foaming agents and modifier (borax) could replace cristobalite by tridymite, which is the lower temperature SiO2. Borax (Na2B4O7•10H2O) provides alkali (Na) as the flux to reduce the glass temperature, and boron Additive Manufacturing and Sustainable Materials oxide as glass forming and modifier [10]. Borax helped to form triclinic labradorite ((Ca, Na)(Al, Si)4O8) in FB-3 foam glass.…”

Section: Resultsmentioning

confidence: 99%

Foam Glass Fabrication from End-of-Life Blended LCD Screen, Photovoltaic Glass Cullet and Flat Glass

Patcharawit,

Kansomket,

Longbutsri

et al. 2023

KEM

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End-of-life LCD screens from various waste steam have been used to formulate foam glass, aiming for use as light weight, high compressive strength, and insulation purposes. Via conventional ball milling, the foam glass powder was mixed with a binder and fabricated through compaction under 5-10 MPa using stainless steel press moulds to give green samples in cubic and plate shapes. Firing the samples at 1000 – 1050 °C for 0.5-4 hours allowed the construction of foam glass structure, giving low densities of 0.15-0.23 g/cm3. Additions of cordierite, calcium carbonate, graphite and borax determined the phases and composition of the final recycling products. Cristobalite appeared as the main phase along with anorthite were found to give high compressive strength of 1.10-4.22 MPa to the foam glass. The foam glass possessed thermal conductivity in a range of 0.1004-0.1183 W/m K, which can be used for insulation purposes. Different foam glass formulation and geometries required different firing temperature and time to acquire suitable foam glass structure for specific purposes of compressive and thermal insulation properties.

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Section: Resultsmentioning

confidence: 99%

Foam Glass Fabrication from End-of-Life Blended LCD Screen, Photovoltaic Glass Cullet and Flat Glass

Patcharawit,

Kansomket,

Longbutsri

et al. 2023

KEM

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“…ZnO acts as a modifier oxide by occupying the interstitial position in the glass network. This leads to a disruption of network connectivity, an alteration in bond formation, and the creation of non-bridging oxygens [4,9,10]. Moreover, the crystallization behavior of a glass matrix depends on the amount of ZnO.…”

Section: Introductionmentioning

confidence: 99%

Effect of ZnO on Luminescence Performance of Terbium-Activated Zinc Borosilicate Glasses

Dayioglugil,

Solak

2024

Materials

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In this study, terbium-doped ZnO-SiO2-B2O3-Na2O glasses were fabricated with the conventional melt-quenching method. The effect of altering the concentration of the host matrix on luminescence performance was investigated in terms of different ZnO/B2O3 and ZnO/SiO2 ratios. FT-IR results indicate that bridging oxygens (Bos) were converted to non-bridging oxygens (NBOs) with increments of ZnO. Furthermore, the emission intensity and luminescence lifetime of samples were influenced by the amount of ZnO; this was proven with photoluminescence spectra results. The maximum emission intensity was observed at a 1.1 ZnO/B2O3 ratio and a 0.8 ZnO/SiO2 ratio; however, the highest luminescence lifetime was observed at a 1.1 ZnO/SiO2 ratio. The emission intensity and luminescence lifetime of glass samples were improved by heat treatment as a result of the formation of willemite and zinc oxide phases. An increase in the ZnO/SiO2 ratio facilitated the formation of willemite and zinc oxide phases; therefore, crystallinity was directly related to the luminescence behavior of glass samples.

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“…In recent years, there has been an increase in the number of literatures done in procuring WGC through solid-state sintering [19,20]. When compared to the chemical process and sol-gel technique, a substantial number of researches focused on the fabrication of WGC with the reinforcement of SiO 2 waste-based materials.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and sintering impact on the properties of willemite based glass-ceramics using rice husk waste as silica source

et al. 2022

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The impact of sintering duration on willemite-based glass-ceramics (WGC) derived from the ZnO-B2O3-SiO2 host system through a conventional melt-quenching method by incorporating rice husk ash (RHA) as the silica (SiO2) source was comprehensively studied by means of physical, structural, and optical properties. The increment of sintering duration elevated the diffusivity rate resulting in a gradual increment of bulk density and linear shrinkage over sintering time. The XRD patterns affirmed the ?-Zn2SiO4 phase formed after sintering at 700?C for 2 h, followed by ?-Zn2SiO4 crystallization at a higher holding time. FESEM observation revealed that Zn2SiO4 embedded in the glassy solid phase and grew in equiaxed shape crystals as the holding time increased. Absorption spectra revealed the increasing trend in absorption bands with an increase in sintering duration due to the intensification of Zn2SiO4 crystallization thus escalating the green emission. Thus, this WGC will be applied as optically phosphor materials.

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The effect of boron substitution on the glass-forming ability, phase transformation and optical performance of zinc-boro-soda-lime-silicate glasses

Cited by 18 publications

References 30 publications

Foam Glass Fabrication from End-of-Life Blended LCD Screen, Photovoltaic Glass Cullet and Flat Glass

Foam Glass Fabrication from End-of-Life Blended LCD Screen, Photovoltaic Glass Cullet and Flat Glass

Effect of ZnO on Luminescence Performance of Terbium-Activated Zinc Borosilicate Glasses

Synthesis and sintering impact on the properties of willemite based glass-ceramics using rice husk waste as silica source

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