Magnesia-zircon brick: Evolution of microstructure, properties and performance with increasing sintering temperature
Depending on phase components and densification, Magnesia-Zircon brick varies in appearance from white to veined and then brown with increasing sintering temperature. Properties including bulk density, apparent porosity and hot modulus of rupture as well as performance embodied with creep resista...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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International Institute for the Science of Sintering, Beograd
2013-01-01
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| Series: | Science of Sintering |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/0350-820X/2013/0350-820X1302181G.pdf |
| _version_ | 1819013896417050624 |
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| author | Gao J. Guo Z. Wang L. Jiang W. |
| author_facet | Gao J. Guo Z. Wang L. Jiang W. |
| author_sort | Gao J. |
| collection | DOAJ |
| description | Depending on phase components and densification, Magnesia-Zircon brick varies in appearance from white to veined and then brown with increasing sintering temperature. Properties including bulk density, apparent porosity and hot modulus of rupture as well as performance embodied with creep resistance and refractoriness continue to improve with sustaining enhancement of sintering temperature. Exceptionally, cold crushing strength first increases then decreases with rising sintering temperature and a peak exists at 1550oC. Microstructural evolution suffers zircon decomposition companying by silica escape, forsterite formation, matrix solidification and zirconia coagulation, until a zirconia/forsterite composites belt tightly coating on magnesia aggregates. Excessive coagulation of zirconia caused by oversintering probably results in microcracks formation and defects enlargement thereby degrades cold crushing strength. |
| first_indexed | 2024-12-21T02:07:14Z |
| format | Article |
| id | doaj.art-592364a9e8eb402cbf2213b75b801a31 |
| institution | Directory Open Access Journal |
| issn | 0350-820X |
| language | English |
| last_indexed | 2024-12-21T02:07:14Z |
| publishDate | 2013-01-01 |
| publisher | International Institute for the Science of Sintering, Beograd |
| record_format | Article |
| series | Science of Sintering |
| spelling | doaj.art-592364a9e8eb402cbf2213b75b801a312022-12-21T19:19:28ZengInternational Institute for the Science of Sintering, BeogradScience of Sintering0350-820X2013-01-0145218118810.2298/SOS1302181GMagnesia-zircon brick: Evolution of microstructure, properties and performance with increasing sintering temperatureGao J.Guo Z.Wang L.Jiang W.Depending on phase components and densification, Magnesia-Zircon brick varies in appearance from white to veined and then brown with increasing sintering temperature. Properties including bulk density, apparent porosity and hot modulus of rupture as well as performance embodied with creep resistance and refractoriness continue to improve with sustaining enhancement of sintering temperature. Exceptionally, cold crushing strength first increases then decreases with rising sintering temperature and a peak exists at 1550oC. Microstructural evolution suffers zircon decomposition companying by silica escape, forsterite formation, matrix solidification and zirconia coagulation, until a zirconia/forsterite composites belt tightly coating on magnesia aggregates. Excessive coagulation of zirconia caused by oversintering probably results in microcracks formation and defects enlargement thereby degrades cold crushing strength.http://www.doiserbia.nb.rs/img/doi/0350-820X/2013/0350-820X1302181G.pdfmagnesia-zirconmicrostructurepropertiesperformance |
| spellingShingle | Gao J. Guo Z. Wang L. Jiang W. Magnesia-zircon brick: Evolution of microstructure, properties and performance with increasing sintering temperature Science of Sintering magnesia-zircon microstructure properties performance |
| title | Magnesia-zircon brick: Evolution of microstructure, properties and performance with increasing sintering temperature |
| title_full | Magnesia-zircon brick: Evolution of microstructure, properties and performance with increasing sintering temperature |
| title_fullStr | Magnesia-zircon brick: Evolution of microstructure, properties and performance with increasing sintering temperature |
| title_full_unstemmed | Magnesia-zircon brick: Evolution of microstructure, properties and performance with increasing sintering temperature |
| title_short | Magnesia-zircon brick: Evolution of microstructure, properties and performance with increasing sintering temperature |
| title_sort | magnesia zircon brick evolution of microstructure properties and performance with increasing sintering temperature |
| topic | magnesia-zircon microstructure properties performance |
| url | http://www.doiserbia.nb.rs/img/doi/0350-820X/2013/0350-820X1302181G.pdf |
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