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Density difference in pressure‐filtrated wet cakes produced from spontaneous gelling slurries
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| Zeitschriftentitel: | Journal of the American Ceramic Society |
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| Personen und Körperschaften: | , , , , , , , |
| In: | Journal of the American Ceramic Society, 103, 2020, 2, S. 1396-1403 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
Wiley
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| Schlagwörter: |
| author_facet |
Di, Zhengxian Shimai, Shunzo Zhao, Jin Jin, Dongliang Zhang, Jian Zhou, Guohong Liu, Juan Wang, Shiwei Di, Zhengxian Shimai, Shunzo Zhao, Jin Jin, Dongliang Zhang, Jian Zhou, Guohong Liu, Juan Wang, Shiwei |
|---|---|
| author |
Di, Zhengxian Shimai, Shunzo Zhao, Jin Jin, Dongliang Zhang, Jian Zhou, Guohong Liu, Juan Wang, Shiwei |
| spellingShingle |
Di, Zhengxian Shimai, Shunzo Zhao, Jin Jin, Dongliang Zhang, Jian Zhou, Guohong Liu, Juan Wang, Shiwei Journal of the American Ceramic Society Density difference in pressure‐filtrated wet cakes produced from spontaneous gelling slurries Materials Chemistry Ceramics and Composites |
| author_sort |
di, zhengxian |
| spelling |
Di, Zhengxian Shimai, Shunzo Zhao, Jin Jin, Dongliang Zhang, Jian Zhou, Guohong Liu, Juan Wang, Shiwei 0002-7820 1551-2916 Wiley Materials Chemistry Ceramics and Composites http://dx.doi.org/10.1111/jace.16783 <jats:title>Abstract</jats:title><jats:p>Pressure filtration is a key process in ceramic forming; however, the influences of density difference in different parts of a pressure‐filtrated wet cake on subsequent drying and sintering have not yet been explored. In the present work, alumina slurries dispersed by copolymers of isobutylene and maleic anhydride (PIBM) and ammonium salt of polyacrylic acid (PAANH<jats:sub>4</jats:sub>) were pressure filtrated to examine the impacts of density difference in the as‐prepared wet cakes. In comparison to the wet cake produced from PAANH<jats:sub>4</jats:sub>, the wet cake with PIBM had much higher bulk density and smaller density difference between its upper and bottom parts (height of ~23 mm). Furthermore, in order to reveal the differences between these two wet cakes, the nature of agglomerates in their slurries was investigated. The slurry with PIBM contained agglomerates with a wider size distribution, bigger average size, and higher sphericity, producing a wet cake with a higher particle packing density and more homogeneous packing structure after pressure filtration. Hence, almost no deformation occurred in a large wet cake (280 mm × 130 mm × 20 mm) with PIBM, whereas that with PAANH<jats:sub>4</jats:sub> experienced a severe deformation after sintering.</jats:p> Density difference in pressure‐filtrated wet cakes produced from spontaneous gelling slurries Journal of the American Ceramic Society |
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| title |
Density difference in pressure‐filtrated wet cakes produced from spontaneous gelling slurries |
| title_unstemmed |
Density difference in pressure‐filtrated wet cakes produced from spontaneous gelling slurries |
| title_full |
Density difference in pressure‐filtrated wet cakes produced from spontaneous gelling slurries |
| title_fullStr |
Density difference in pressure‐filtrated wet cakes produced from spontaneous gelling slurries |
| title_full_unstemmed |
Density difference in pressure‐filtrated wet cakes produced from spontaneous gelling slurries |
| title_short |
Density difference in pressure‐filtrated wet cakes produced from spontaneous gelling slurries |
| title_sort |
density difference in pressure‐filtrated wet cakes produced from spontaneous gelling slurries |
| topic |
Materials Chemistry Ceramics and Composites |
| url |
http://dx.doi.org/10.1111/jace.16783 |
| publishDate |
2020 |
| physical |
1396-1403 |
| description |
<jats:title>Abstract</jats:title><jats:p>Pressure filtration is a key process in ceramic forming; however, the influences of density difference in different parts of a pressure‐filtrated wet cake on subsequent drying and sintering have not yet been explored. In the present work, alumina slurries dispersed by copolymers of isobutylene and maleic anhydride (PIBM) and ammonium salt of polyacrylic acid (PAANH<jats:sub>4</jats:sub>) were pressure filtrated to examine the impacts of density difference in the as‐prepared wet cakes. In comparison to the wet cake produced from PAANH<jats:sub>4</jats:sub>, the wet cake with PIBM had much higher bulk density and smaller density difference between its upper and bottom parts (height of ~23 mm). Furthermore, in order to reveal the differences between these two wet cakes, the nature of agglomerates in their slurries was investigated. The slurry with PIBM contained agglomerates with a wider size distribution, bigger average size, and higher sphericity, producing a wet cake with a higher particle packing density and more homogeneous packing structure after pressure filtration. Hence, almost no deformation occurred in a large wet cake (280 mm × 130 mm × 20 mm) with PIBM, whereas that with PAANH<jats:sub>4</jats:sub> experienced a severe deformation after sintering.</jats:p> |
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| author | Di, Zhengxian, Shimai, Shunzo, Zhao, Jin, Jin, Dongliang, Zhang, Jian, Zhou, Guohong, Liu, Juan, Wang, Shiwei |
| author_facet | Di, Zhengxian, Shimai, Shunzo, Zhao, Jin, Jin, Dongliang, Zhang, Jian, Zhou, Guohong, Liu, Juan, Wang, Shiwei, Di, Zhengxian, Shimai, Shunzo, Zhao, Jin, Jin, Dongliang, Zhang, Jian, Zhou, Guohong, Liu, Juan, Wang, Shiwei |
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| description | <jats:title>Abstract</jats:title><jats:p>Pressure filtration is a key process in ceramic forming; however, the influences of density difference in different parts of a pressure‐filtrated wet cake on subsequent drying and sintering have not yet been explored. In the present work, alumina slurries dispersed by copolymers of isobutylene and maleic anhydride (PIBM) and ammonium salt of polyacrylic acid (PAANH<jats:sub>4</jats:sub>) were pressure filtrated to examine the impacts of density difference in the as‐prepared wet cakes. In comparison to the wet cake produced from PAANH<jats:sub>4</jats:sub>, the wet cake with PIBM had much higher bulk density and smaller density difference between its upper and bottom parts (height of ~23 mm). Furthermore, in order to reveal the differences between these two wet cakes, the nature of agglomerates in their slurries was investigated. The slurry with PIBM contained agglomerates with a wider size distribution, bigger average size, and higher sphericity, producing a wet cake with a higher particle packing density and more homogeneous packing structure after pressure filtration. Hence, almost no deformation occurred in a large wet cake (280 mm × 130 mm × 20 mm) with PIBM, whereas that with PAANH<jats:sub>4</jats:sub> experienced a severe deformation after sintering.</jats:p> |
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| spelling | Di, Zhengxian Shimai, Shunzo Zhao, Jin Jin, Dongliang Zhang, Jian Zhou, Guohong Liu, Juan Wang, Shiwei 0002-7820 1551-2916 Wiley Materials Chemistry Ceramics and Composites http://dx.doi.org/10.1111/jace.16783 <jats:title>Abstract</jats:title><jats:p>Pressure filtration is a key process in ceramic forming; however, the influences of density difference in different parts of a pressure‐filtrated wet cake on subsequent drying and sintering have not yet been explored. In the present work, alumina slurries dispersed by copolymers of isobutylene and maleic anhydride (PIBM) and ammonium salt of polyacrylic acid (PAANH<jats:sub>4</jats:sub>) were pressure filtrated to examine the impacts of density difference in the as‐prepared wet cakes. In comparison to the wet cake produced from PAANH<jats:sub>4</jats:sub>, the wet cake with PIBM had much higher bulk density and smaller density difference between its upper and bottom parts (height of ~23 mm). Furthermore, in order to reveal the differences between these two wet cakes, the nature of agglomerates in their slurries was investigated. The slurry with PIBM contained agglomerates with a wider size distribution, bigger average size, and higher sphericity, producing a wet cake with a higher particle packing density and more homogeneous packing structure after pressure filtration. Hence, almost no deformation occurred in a large wet cake (280 mm × 130 mm × 20 mm) with PIBM, whereas that with PAANH<jats:sub>4</jats:sub> experienced a severe deformation after sintering.</jats:p> Density difference in pressure‐filtrated wet cakes produced from spontaneous gelling slurries Journal of the American Ceramic Society |
| spellingShingle | Di, Zhengxian, Shimai, Shunzo, Zhao, Jin, Jin, Dongliang, Zhang, Jian, Zhou, Guohong, Liu, Juan, Wang, Shiwei, Journal of the American Ceramic Society, Density difference in pressure‐filtrated wet cakes produced from spontaneous gelling slurries, Materials Chemistry, Ceramics and Composites |
| title | Density difference in pressure‐filtrated wet cakes produced from spontaneous gelling slurries |
| title_full | Density difference in pressure‐filtrated wet cakes produced from spontaneous gelling slurries |
| title_fullStr | Density difference in pressure‐filtrated wet cakes produced from spontaneous gelling slurries |
| title_full_unstemmed | Density difference in pressure‐filtrated wet cakes produced from spontaneous gelling slurries |
| title_short | Density difference in pressure‐filtrated wet cakes produced from spontaneous gelling slurries |
| title_sort | density difference in pressure‐filtrated wet cakes produced from spontaneous gelling slurries |
| title_unstemmed | Density difference in pressure‐filtrated wet cakes produced from spontaneous gelling slurries |
| topic | Materials Chemistry, Ceramics and Composites |
| url | http://dx.doi.org/10.1111/jace.16783 |