TY - JOUR
T1 - Microstructural transformations of two representative slags at high temperatures and effects on the viscosity
AU - Jiang, Yong
AU - Lin, Xiongchao
AU - Ideta, Keiko
AU - Takebe, Hiromichi
AU - Miyawaki, Jin
AU - Yoon, Seong Ho
AU - Mochida, Isao
N1 - Funding Information:
The authors gratefully acknowledge the financial support provided by the New Energy and Industrial Technology Development Organization (NEDO) of Japan, the Global Center of Excellence (GCOE) of Japan and J-Power Company.
PY - 2014/7/25
Y1 - 2014/7/25
N2 - The transformation of the Si-Al microstructures of slags, which have similar SiO2+Al2O3 and CaO contents but different SiO2/Al2O3 ratios, was quantified using multinuclear SS-NMR. Three kinds of Si Qn microstructures (Q2, Q3, and Q4), where n denotes the number of bridging oxygen linked to other Si atoms for each Q (SiO4) unit, and one Al structure (Al (IV)) were present in both slags. The Q3 percentage in two slags was increased as increase of temperature from 1200 to 1600°C. The transformation of Si-Al microstructures was interpreted by a hypothetic model of cristobalite cluster based on the crystal and Qn structure.
AB - The transformation of the Si-Al microstructures of slags, which have similar SiO2+Al2O3 and CaO contents but different SiO2/Al2O3 ratios, was quantified using multinuclear SS-NMR. Three kinds of Si Qn microstructures (Q2, Q3, and Q4), where n denotes the number of bridging oxygen linked to other Si atoms for each Q (SiO4) unit, and one Al structure (Al (IV)) were present in both slags. The Q3 percentage in two slags was increased as increase of temperature from 1200 to 1600°C. The transformation of Si-Al microstructures was interpreted by a hypothetic model of cristobalite cluster based on the crystal and Qn structure.
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U2 - 10.1016/j.jiec.2013.07.015
DO - 10.1016/j.jiec.2013.07.015
M3 - Article
AN - SCOPUS:84900426326
SN - 1226-086X
VL - 20
SP - 1338
EP - 1345
JO - Journal of Industrial and Engineering Chemistry
JF - Journal of Industrial and Engineering Chemistry
IS - 4
ER -