Raw materials from the Kursk Magnetic Anomaly region: The basis of glass materials for electrical engineering

Min'ko, N. I.; Koval’chenko, N. A.; Pavlenko, Z. V.; Zhernovaya, N. F.

doi:10.1007/bf02768117

Cited by 4 publications

(1 citation statement)

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“…The multiple valence states of iron (Fe 2+ , Fe 3+ ) represent a fundamental factor for the conductivity of waste‐derived glasses, as evidenced by Min'ko et al , on glasses prepared using mining overburden (sand, chalk, marl and crystalline shale) and ore‐dressing wastes of iron quartzite. A wide range of electrical resistivity (10 11 –10 14 Ω cm) may be achieved, depending on the ratio Fe 3+ /Fe 2+ (Fe 3+ acts as glass former, so that it favours high resistivity).…”

Section: Structural and Functional Propertiesmentioning

confidence: 99%

Recycling of inorganic waste in monolithic and cellular glass‐based materials for structural and functional applications

Rincón

Marangoni

Çetin

et al. 2016

J of Chemical Tech & Biotech

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The stabilization of inorganic waste of various nature and origin, in glasses, has been a key strategy for environmental protection for the last decades. When properly formulated, glasses may retain many inorganic contaminants permanently, but it must be acknowledged that some criticism remains, mainly concerning costs and energy use. As a consequence, the sustainability of vitrification largely relies on the conversion of waste glasses into new, usable and marketable glass‐based materials, in the form of monolithic and cellular glass‐ceramics. The effective conversion in turn depends on the simultaneous control of both starting materials and manufacturing processes. While silica‐rich waste favours the obtainment of glass, iron‐rich wastes affect the functionalities, influencing the porosity in cellular glass‐based materials as well as catalytic, magnetic, optical and electrical properties. Engineered formulations may lead to important reductions of processing times and temperatures, in the transformation of waste‐derived glasses into glass‐ceramics, or even bring interesting shortcuts. Direct sintering of wastes, combined with recycled glasses, as an example, has been proven as a valid low‐cost alternative for glass‐ceramic manufacturing, for wastes with limited hazardousness. The present paper is aimed at providing an up‐to‐date overview of the correlation between formulations, manufacturing technologies and properties of most recent waste‐derived, glass‐based materials. © 2016 The Authors. Journal of Chemical Technology & Biotechnology published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

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Section: Structural and Functional Propertiesmentioning

confidence: 99%