The Effect of Rheological Parameters on the Behavior of Silicon Nitride-Starch Slurry Used in Gelcasting Porous Silicon Nitride
In this research, the rheological behavior and stability of suspensions containing Si3N4, Al2O3, Y2O3 and starch were investigated in order to use them in the starch consolidation casting of porous silicon nitride. Dolapix CE64 was used as the dispersant. Then, the effect of some parameters such as...
| Main Authors: | , , |
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| Format: | Article |
| Language: | fas |
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Isfahan University of Technology
2019-03-01
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| Series: | Journal of Advanced Materials in Engineering |
| Subjects: | |
| Online Access: | http://jame.iut.ac.ir/article-1-690-en.html |
| _version_ | 1818846957548863488 |
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| author | M. Haghshenas Gorgani M. Mirkazemi F. Golestanifard |
| author_facet | M. Haghshenas Gorgani M. Mirkazemi F. Golestanifard |
| author_sort | M. Haghshenas Gorgani |
| collection | DOAJ |
| description | In this research, the rheological behavior and stability of suspensions containing Si3N4, Al2O3, Y2O3 and starch were investigated in order to use them in the starch consolidation casting of porous silicon nitride. Dolapix CE64 was used as the dispersant. Then, the effect of some parameters such as Si3N4 surface oxidation, dispersant content, solid loading and starch content on the viscosity and rheological behavior of Si3N4-starch slurry was determined. Surface oxidation of Si3N4 powder at 800°C for 2 hours reduced the viscosity of the slurry, effectively. The best dispersant content was 0.4 wt. %, relative to ceramic powders. Slurries containing 30 to 40 vol. % and 7.5 to 25 vol. % starch, relative to total solid loading, had the suitable viscosity and the sufficient stability for casting by the starch consolidation method. |
| first_indexed | 2024-12-19T05:53:48Z |
| format | Article |
| id | doaj.art-bccf15aaa4b04d128fff5678e0ffcf87 |
| institution | Directory Open Access Journal |
| issn | 2251-600X 2423-5733 |
| language | fas |
| last_indexed | 2024-12-19T05:53:48Z |
| publishDate | 2019-03-01 |
| publisher | Isfahan University of Technology |
| record_format | Article |
| series | Journal of Advanced Materials in Engineering |
| spelling | doaj.art-bccf15aaa4b04d128fff5678e0ffcf872022-12-21T20:33:32ZfasIsfahan University of TechnologyJournal of Advanced Materials in Engineering2251-600X2423-57332019-03-013741323The Effect of Rheological Parameters on the Behavior of Silicon Nitride-Starch Slurry Used in Gelcasting Porous Silicon NitrideM. Haghshenas Gorgani0M. Mirkazemi1F. Golestanifard2 Iran University of Science and Technology, School of Metallurgy and Materials Engineering. Iran University of Science and Technology, School of Metallurgy and Materials Engineering. Iran University of Science and Technology, School of Metallurgy and Materials Engineering. In this research, the rheological behavior and stability of suspensions containing Si3N4, Al2O3, Y2O3 and starch were investigated in order to use them in the starch consolidation casting of porous silicon nitride. Dolapix CE64 was used as the dispersant. Then, the effect of some parameters such as Si3N4 surface oxidation, dispersant content, solid loading and starch content on the viscosity and rheological behavior of Si3N4-starch slurry was determined. Surface oxidation of Si3N4 powder at 800°C for 2 hours reduced the viscosity of the slurry, effectively. The best dispersant content was 0.4 wt. %, relative to ceramic powders. Slurries containing 30 to 40 vol. % and 7.5 to 25 vol. % starch, relative to total solid loading, had the suitable viscosity and the sufficient stability for casting by the starch consolidation method.http://jame.iut.ac.ir/article-1-690-en.htmlsilicon nitrideporous ceramicsgel castingstarch. |
| spellingShingle | M. Haghshenas Gorgani M. Mirkazemi F. Golestanifard The Effect of Rheological Parameters on the Behavior of Silicon Nitride-Starch Slurry Used in Gelcasting Porous Silicon Nitride Journal of Advanced Materials in Engineering silicon nitride porous ceramics gel casting starch. |
| title | The Effect of Rheological Parameters on the Behavior of Silicon Nitride-Starch Slurry Used in Gelcasting Porous Silicon Nitride |
| title_full | The Effect of Rheological Parameters on the Behavior of Silicon Nitride-Starch Slurry Used in Gelcasting Porous Silicon Nitride |
| title_fullStr | The Effect of Rheological Parameters on the Behavior of Silicon Nitride-Starch Slurry Used in Gelcasting Porous Silicon Nitride |
| title_full_unstemmed | The Effect of Rheological Parameters on the Behavior of Silicon Nitride-Starch Slurry Used in Gelcasting Porous Silicon Nitride |
| title_short | The Effect of Rheological Parameters on the Behavior of Silicon Nitride-Starch Slurry Used in Gelcasting Porous Silicon Nitride |
| title_sort | effect of rheological parameters on the behavior of silicon nitride starch slurry used in gelcasting porous silicon nitride |
| topic | silicon nitride porous ceramics gel casting starch. |
| url | http://jame.iut.ac.ir/article-1-690-en.html |
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