Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5437685 | Ceramics International | 2017 | 9 Pages |
Abstract
A spray drying and pyrolysis synthesis route was developed and it successfully prepared boron nitride (BN) nanoparticles with high dispersivity. During the experiment, the extremely rapid drying of the boric acid/urea solution during the spray-drying process resulted in the formation of homogeneous precursors, which was the key for the final pyrolysis synthesis of BN nanoparticles with high dispersibility and uniform diameters (~20Â nm). Compared with boron nitride synthesized without using spray drying, the as-prepared BN nanoparticles possess higher specific surface area (145.01Â m2Â gâ1) and larger pore volume (0.41Â cm3Â gâ1). Especially, we used the BN nanoparticles as lubricant and incorporated it into the liquid paraffin (LP). The experiment results show that the LP presents outstanding antifriction properties for a BN content of 1.5Â wt%. These results suggest that the h-BN nanoparticles have significant potential applications in the field of tribology.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Weifang Han, Zhiyan Ma, Shicai Liu, Chunhua Ge, Lixia Wang, Xiangdong Zhang,