Glass Phase Structure of Blast Furnace Slag

Chao Li; Heng Hu Sun; Long Tu Li

doi:10.4028/www.scientific.net/AMR.168-170.3

Paper Titles

Glass Phase Structure of Blast Furnace Slag
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 168-170Glass Phase Structure of Blast Furnace Slag

Glass Phase Structure of Blast Furnace Slag

Abstract:

This paper studies the blast furnace slag glass phase structure by a series of analysis methods. In glass phase, both Si and Al ions are confirmed to occupy only tetrahedral sites, while the [SiO4]4- and [AlO4]5- are separated by Ca and Mg. Furthermore, the glass structure corresponds to micro-crystal model, which means it contains some nano-scaled micro-crystals in the glass phase. In addition, the slag glass may separate into two phases: a calcium rich phase and a silica rich phase. According to devitrification experiment, it has been inferred that the chemical composition and structure of silica rich phase are close to that of akermanite,which means most of Si is distribute around Mg.

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Periodical:

Advanced Materials Research (Volumes 168-170)

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3-7

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.168-170.3

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Online since:

December 2010

Authors:

Chao Li, Heng Hu Sun, Long Tu Li

Keywords:

Blast Furnace Slag (BFS), Glass Phase, Structure

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