Structural, dielectric and melting properties of aluminosilicate glasses based on blast furnace slag for printed circuit board applications

Yue, Yunlong; Zhang, Xuehong; Yang, Xu; Huang, Sanxi; Chen, Peipei

doi:10.1016/j.matlet.2014.08.090

Cited by 32 publications

(18 citation statements)

References 23 publications

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“…According to the BFS cooling process, several types of slag can be structurally distinguished. Slag may appear as amorphous, crystalline or some combination of both [7,[10][11][12][13][14]. If cooling is slow such as in free air, slag is grey, porous and exhibits a crystallized structure.…”

Section: Introductionmentioning

confidence: 99%

Efficiency of high energy over conventional milling of granulated blast furnace slag powder to improve mechanical performance of slag cement paste

Bouaziz

Hamzaoui²,

Guessasma

et al. 2017

Powder Technology

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This work aims at bridging the efficiency of ball milling of granulated blast furnace slag (GBFS) to the structural and mechanical properties of slag cement pastes. Both conventional and high energy milling of GBFS are considered with a milling duration varied between 1 and 10 h. X-ray diffraction, infra-red spectroscopy, granulometry analysis and scanning electron microscopy are used to draw the main lines of structural and Morphological changes occurring during milling. Cement pastes formulated using 45% of GBFS in substitution are Characterized. Workability, X-ray diffraction analysis, differential scanning calorimetry and compressive testing ate performed to analyse main structural changes and reactions driven by the presence of milled GBFS as well as its direct consequence on the mechanical strength of slag cement pastes. Slag milling indicates the superior efficiency of high-energy milling, which allows a maximum slag finesse of 1.79 m(2)/g after 3 h of milling. Major structural changes occur during the first 3 h of high energy milling while conventional milling does not induce any remarkable trend. These changes concern amorphisation of the bulk structure in addition to the fracturing and agglomeration of slag particles. Workability of slag cement pastes is remarkably improved when using 1 h of high-energy slag milling. This result is consistent with slag finesse trend with respect to milling time and with the improvement of GBFS reactivity. The substitution of 45% of cement (CEM I 52.5) by GBFS is only beneficial at the condition of performing high-energy milling for at least 1 h

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Section: Introductionmentioning

confidence: 99%

Efficiency of high energy over conventional milling of granulated blast furnace slag powder to improve mechanical performance of slag cement paste

Bouaziz

Hamzaoui²,

Guessasma

et al. 2017

Powder Technology

View full text Add to dashboard Cite

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“…The wavenumber range between 1560 and 1360 cm −1 is associated with the carbonate CO 3 2− phase 33 and has shown increase in transmittance for the slag samples after wastewater treatment. The wavenumber at 963 cm −1 is related to the antisymmetric stretching vibration of (Al)-O, and the wavenumber at 876 cm −1 is related to the symmetric stretch of the AlO 4 −1 group, while the 916 cm −1 is related [SiO 4 ] tetrahedral 32,34 . These wavenumbers are reduced for all three samples after application of BFS for removing the phosphate from wastewater, presenting the effect of Al on phosphate removal ability, where higher amount of Al increases the phosphate removal ability of BFS.…”

Section: Resultsmentioning

confidence: 99%

“…Furthermore, the 711 cm −1 wavenumber is related to the symmetric stretching vibration of Si-O-Si (Al) bridge, and 686 cm −1 wavenumber is related to Si-O-Al establishment from [SiO 4 ] tetrahedral, which is in correlation to the sample basicity (CaO/SiO 2 ) ratio 32,34 . The Si-O-Si (Al) vibration in sample R, which has the lowest basicity (1.09) and the highest phosphate removal ability, is reduced when compared to sample B with the highest basicity (1.22) and lowest phosphate removal ability.…”

Section: Resultsmentioning

confidence: 99%

Investigation of Phosphate Removal Capability of Blast Furnace Slag in Wastewater Treatment

Yasipourtehrani

Strezov

Evans

2019

Sci Rep

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Blast Furnace Slag (BFS) is a by-product of iron making with a potential to be used in different applications. In this research, BFS is used to investigate the phosphate removal ability in wastewater. BFS has the required concentrations of surface calcium to potentially precipitate phosphate from wastewater. Removal of phosphate from wastewater depends on variety of conditions, such as the size of BFS particles, adsorbent dose, contact time and pH. The conditions responsible for phosphate removal from wastewater with BFS were analysed and the phosphate removal capacity optimised according to the BFS chemical content. The results in this work demonstrated that the basicity (CaO/SiO 2 ) of BFS has a reverse effect on phosphate removal capacity. High basicity reduces the capability of BFS for removal of phosphate. BFS composition before and after phosphate removal was determined with Energy Dispersive Spectroscopy (EDS), Fourier Transfer Infrared Spectroscopy (FTIR) and UV-Vis spectrophotometry. The results revealed that the slag samples added varying concentrations of trace metals Al, Cd, Co and Hg into the treated water, which will need to be further conditioned by dilution with unpolluted water or other treatments before disposal or re-use.

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“…Yan Zhao conducted an investigation of blast furnace slag for the production of glass‐ceramics and found that the crystal phases of akermanite and diopside formed at about 960°C . Yunlong Yue studied the aluminosilicate glasses prepared from blast furnace slag for printed circuit board applications . Salwa A. M. Abdel‐Hameed prepared hard and soft magnetic glass‐ceramics with iron oxide bearing pellets waste and iron sintered wastes as raw material .…”

Section: Introductionmentioning

confidence: 99%

Synthesis and properties of ferrimagnetic glass‐ceramics and glass fibers derived from pyrite slag

Liu

Zhu

Zhang

et al. 2018

Int J Applied Ceramic Tech

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Ferrimagnetic nano‐crystal glass‐ceramics and glass fibers were prepared based on the ferrosilicate glass system of SiO2–Fe2O3–B2O3–Al2O3 using large amount of pyrite slag (PS) and small quantities of pure chemicals. Two different fabrication methods were employed, eg, annealing and fiber‐drawing method, without performing any nucleation and crystallization heat treatments. The influence of PS content on the magnetite spontaneous crystallization is investigated by the X‐ray diffraction, FTIR, SEM, and TEM. The X‐ray diffraction patterns show the presence of nanometric magnetite crystals in glass matrix. The ferrimagnetic glass fibers with a diameter of about 20 μm were one‐step drawn. The magnetic hysteresis loops of the glass‐ceramic and glass fiber samples were analyzed using a vibrating sample magnetometer (VSM). Electromagnetic parameters of samples were also examined.

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Structural, dielectric and melting properties of aluminosilicate glasses based on blast furnace slag for printed circuit board applications

Cited by 32 publications

References 23 publications

Efficiency of high energy over conventional milling of granulated blast furnace slag powder to improve mechanical performance of slag cement paste

Efficiency of high energy over conventional milling of granulated blast furnace slag powder to improve mechanical performance of slag cement paste

Investigation of Phosphate Removal Capability of Blast Furnace Slag in Wastewater Treatment

Synthesis and properties of ferrimagnetic glass‐ceramics and glass fibers derived from pyrite slag

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