Viscosity model for aluminosilicate melt
The structurally based viscosity model proposed in our previous study is extended to include more components, e.g. SiO2, Al2O3, FeO, MnO, MgO, CaO, Na2O and K2O. A simple method is proposed to calculate the numbers of different types of oxygen ions classified by the different cations they bonded...
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| Format: | Article |
| Language: | English |
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University of Belgrade, Technical Faculty, Bor
2012-01-01
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| Series: | Journal of Mining and Metallurgy. Section B: Metallurgy |
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| Online Access: | http://www.doiserbia.nb.rs/img/doi/1450-5339/2012/1450-53391200054Z.pdf |
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| _version_ | 1832570014708793344 |
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| author | Zhang G.H. Chou K.C. |
| author_facet | Zhang G.H. Chou K.C. |
| author_sort | Zhang G.H. |
| collection | DOAJ |
| description | The structurally based viscosity model proposed in our previous study is extended to include more components, e.g. SiO2, Al2O3, FeO, MnO, MgO, CaO, Na2O and K2O. A simple method is proposed to calculate the numbers of different types of oxygen ions classified by the different cations they bonded with, which is used to characterize the influence of composition on viscosity. When dealing with the aluminosilicate melts containing several basic oxides, the priority order is established for different cations for charge compensating Al3+ ions, according to the coulombic force between cation and oxygen anion. It is indicated that basic oxides have two paradox influences on viscosity: basic oxide with a higher basicity decreases viscosity more greatly by forming weaker non-bridging oxygen bond; while it increases viscosity more greatly by forming stronger bridging oxygen bond in tetrahedron after charge compensating Al3+ ion. The present model can extrapolate its application range to the system without SiO2. Furthermore, it could also give a satisfy interpretation to the abnormal phenomenon that viscosity increases when adding K2O to CaO-Al2O3-SiO2 melt within a certain composition range. |
| format | Article |
| id | doaj-art-8be390f914b245479643bf02e71f96fa |
| institution | Kabale University |
| issn | 1450-5339 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | University of Belgrade, Technical Faculty, Bor |
| record_format | Article |
| series | Journal of Mining and Metallurgy. Section B: Metallurgy |
| spelling | doaj-art-8be390f914b245479643bf02e71f96fa2025-02-02T18:12:06ZengUniversity of Belgrade, Technical Faculty, BorJournal of Mining and Metallurgy. Section B: Metallurgy1450-53392012-01-0148343344210.2298/JMMB120317054ZViscosity model for aluminosilicate meltZhang G.H.Chou K.C.The structurally based viscosity model proposed in our previous study is extended to include more components, e.g. SiO2, Al2O3, FeO, MnO, MgO, CaO, Na2O and K2O. A simple method is proposed to calculate the numbers of different types of oxygen ions classified by the different cations they bonded with, which is used to characterize the influence of composition on viscosity. When dealing with the aluminosilicate melts containing several basic oxides, the priority order is established for different cations for charge compensating Al3+ ions, according to the coulombic force between cation and oxygen anion. It is indicated that basic oxides have two paradox influences on viscosity: basic oxide with a higher basicity decreases viscosity more greatly by forming weaker non-bridging oxygen bond; while it increases viscosity more greatly by forming stronger bridging oxygen bond in tetrahedron after charge compensating Al3+ ion. The present model can extrapolate its application range to the system without SiO2. Furthermore, it could also give a satisfy interpretation to the abnormal phenomenon that viscosity increases when adding K2O to CaO-Al2O3-SiO2 melt within a certain composition range.http://www.doiserbia.nb.rs/img/doi/1450-5339/2012/1450-53391200054Z.pdfviscositymodelaluminosilicate meltsnon-bridging oxygenbridging oxygen |
| spellingShingle | Zhang G.H. Chou K.C. Viscosity model for aluminosilicate melt Journal of Mining and Metallurgy. Section B: Metallurgy viscosity model aluminosilicate melts non-bridging oxygen bridging oxygen |
| title | Viscosity model for aluminosilicate melt |
| title_full | Viscosity model for aluminosilicate melt |
| title_fullStr | Viscosity model for aluminosilicate melt |
| title_full_unstemmed | Viscosity model for aluminosilicate melt |
| title_short | Viscosity model for aluminosilicate melt |
| title_sort | viscosity model for aluminosilicate melt |
| topic | viscosity model aluminosilicate melts non-bridging oxygen bridging oxygen |
| url | http://www.doiserbia.nb.rs/img/doi/1450-5339/2012/1450-53391200054Z.pdf |
| work_keys_str_mv | AT zhanggh viscositymodelforaluminosilicatemelt AT choukc viscositymodelforaluminosilicatemelt |