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Metallurgical and Materials Transactions B
Published in: Metallurgical and Materials Transactions B 3/2017

16-03-2017

Effect of Al2O3 Concentration on Density and Structure of (CaO-SiO2)-xAl2O3 Slag

Authors: Ramaraghavulu Rajavaram, Hyelim Kim, Chi-Hoon Lee, Won-Seung Cho, Chi-Hwan Lee, Joonho Lee

Published in: Metallurgical and Materials Transactions B | Issue 3/2017

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Abstract

The effect of Al2O3 concentration on the density and structure of CaO-SiO2-Al2O3 slag was investigated at multiple Al2O3 mole percentages and at a fixed CaO/SiO2 ratio of 1. The experiments were conducted in the temperature range of 2154 K to 2423 K (1881 °C to 2150 °C) using the aerodynamic levitation technique. In order to understand the relationship between density and structure, structural analysis of the silicate melts was carried out using Raman spectroscopy. The density of each slag sample investigated in this study decreased linearly with increasing temperature. When the Al2O3 content was less than 15 mole pct, density decreased with increasing Al2O3 content due to the coupling of Si (Al), whereas above 20 mole pct density of the slag increased due to the role of Al3+ ion as a network modifier.
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Metadata
Title
Effect of Al2O3 Concentration on Density and Structure of (CaO-SiO2)-xAl2O3 Slag
Authors
Ramaraghavulu Rajavaram
Hyelim Kim
Chi-Hoon Lee
Won-Seung Cho
Chi-Hwan Lee
Joonho Lee
Publication date
16-03-2017
Publisher
Springer US
Published in
Metallurgical and Materials Transactions B / Issue 3/2017
Print ISSN: 1073-5615
Electronic ISSN: 1543-1916
DOI
https://doi.org/10.1007/s11663-017-0964-2

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