Agglomeration of powders with a new-coupled vibration-compaction device

Jan. 1, 2017, midnight - by Eric Serris , Olivier Desplat , Olivier Valfort , Phillipe Grosseau , F. Radjai , S. Nezamabadi , S. Luding , J.Y. Delenne

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Recycling of inorganic powder is anticipated to play a pivotal role in the future of "smart factories." The study focuses on a sophisticated three-phase system comprising bauxite, ordinary Portland cement, and water, utilizing a novel coupled vibration-compaction device. The application of this device at low compaction pressure appears to enhance the compressive stress of compacts while maintaining other characteristics unchanged. Tomographic examination of macroscopic porosities reveals differences in pore distributions between vibrated and untreated compacts. The conventional compacted bauxite compacts exhibit a typical porosity distribution, whereas vibrated-compacted bauxite demonstrates inhomogeneities. Despite this variation, these findings are considered promising for further exploration.

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