Structure, crystallization and dielectric resonances in 2–13 GHz of waste-derived glass-ceramic

Structure, kinetics of crystallization, and dielectric resonances of waste-derived glass-ceramic prepared via quench-heating route were studied as a function of dosage of iron ore tailing (IOT) within 20–40 wt% using X-ray diffraction (XRD), fourier transform infrared spectroscopy (FTIR), differenti...

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Bibliographic Details
Published in:Solid state sciences 2016-12, Vol.62, p.56-70
Main Authors: Yao, Rui, Liao, SongYi, Chen, XiaoYu, Wang, GuangRong, Zheng, Feng
Format: Article
Language:English
Subjects:
Crystallization
Crystals
Dielectric response
Dielectrics
Fourier transforms
Glass
Glass ceramics
Infrared spectroscopy
Networks
Scanning electron microscopy
Thermal analysis
X-ray diffraction
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Summary:Structure, kinetics of crystallization, and dielectric resonances of waste-derived glass-ceramic prepared via quench-heating route were studied as a function of dosage of iron ore tailing (IOT) within 20–40 wt% using X-ray diffraction (XRD), fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), scanning electron microscopy (SEM) with energy dispersive X-ray spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), and vector network analyzer (VNA) measurements. The glass-ceramic mainly consisted of ferrite crystals embedded in borosilicate glass matrix. Crystallization kinetics and morphologies of ferrite crystals as well as coordination transformation of boron between [BO4] and [BO3] in glass network were adjustable by changing the amount of IOT. Dielectric resonances in 6–13 GHz were found to be dominated by oscillations of Ca2+ cations in glass network with [SiO4] units on their neighboring sites. Ni2+ ions made a small contribution to those resonances. Diopside formed when IOT exceeded 35 wt%, which led to weakening of the resonances. [Display omitted] •The glass-ceramic mainly consists of ferrite crystals and borosilicate glass matrix.•Crystallization of ferrite and coordination of boron in glass network are adjustable.•Dielectric resonances in 6–13 GHz are dominated by oscillations of Ca2+ cations.•Ni2+ ions make a small contribution to dielectric resonances in 6–13 GHz.•Presence of [SiO4] units is essential to dielectric resonances in 6–13 GHz.
ISSN:1293-2558
1873-3085
DOI:10.1016/j.solidstatesciences.2016.10.016