Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
227619 | Journal of Industrial and Engineering Chemistry | 2014 | 8 Pages |
Abstract
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.
Keywords
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Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Yong Jiang, Xiongchao Lin, Keiko Ideta, Hiromichi Takebe, Jin Miyawaki, Seong-Ho Yoon, Isao Mochida,