Density difference in pressure-filtrated wet cakes produced from spontaneous gelling slurries

doi:10.1111/jace.16783

	Density difference in pressure-filtrated wet cakes produced from spontaneous gelling slurries
	Di, Zhengxian; Shimai, Shunzo; Zhao, Jin; Jin, Dongliang; Zhang, Jian; Zhou, Guohong; Liu, Juan; Wang, Shiwei
刊名	JOURNAL OF THE AMERICAN CERAMIC SOCIETY
	2019-12-31
关键词	agglomerate density difference pressure filtration slurry wet cake
ISSN号	0002-7820
DOI	10.1111/jace.16783
文献子类	Article; Early Access
英文摘要	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(4)) 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(4), the wet cake with PIBM had much higher bulk density and smaller density difference between its upper and bottom parts (height of similar to 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 x 130 mm x 20 mm) with PIBM, whereas that with PAANH(4) experienced a severe deformation after sintering.
WOS关键词	TO-BRITTLE TRANSITION ; PARTICLE PACKING ; SURFACE-ROUGHNESS ; ALUMINA POWDER ; STRENGTH ; GREEN ; SHAPE ; COMPRESSIBILITY ; SUSPENSIONS ; CERAMICS
WOS研究方向	Materials Science
语种	英语
出版者	WILEY
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/27536]
专题	中国科学院上海硅酸盐研究所
推荐引用方式 GB/T 7714	Di, Zhengxian,Shimai, Shunzo,Zhao, Jin,et al. Density difference in pressure-filtrated wet cakes produced from spontaneous gelling slurries[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY,2019.
APA	Di, Zhengxian.,Shimai, Shunzo.,Zhao, Jin.,Jin, Dongliang.,Zhang, Jian.,...&Wang, Shiwei.(2019).Density difference in pressure-filtrated wet cakes produced from spontaneous gelling slurries.JOURNAL OF THE AMERICAN CERAMIC SOCIETY.
MLA	Di, Zhengxian,et al."Density difference in pressure-filtrated wet cakes produced from spontaneous gelling slurries".JOURNAL OF THE AMERICAN CERAMIC SOCIETY (2019).