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摘要
In this short article, a novel method, the freeze thaw procedure, was adopted for granulating nanosized silica colloids into free-flowing micronsized particles. A considerable increase in tap density was observed. During the freezing process, the formation of ice was considered crucial for producing agglomerates. Therefore, when a different freezing procedure was used, agglomerates with different characteristics were obtained. Essentially, slow ice formation was associated with the formation of large agglomerates.
- 出版日期2014-7
- 单位清华大学
