Density Measurements of Single Granules Using the Atomic Force Microscope
Authors: Andersson, Karin M.; Bergström, Lennart
Source: Journal of the American Ceramic Society, Volume 88, Number 8, August 2005 , pp. 2322-2324(3)
Abstract:The density of single spray-dried granules has been determined with a new method based on atomic force microscopy (AFM). Spherical granules with a well-defined diameter are attached to the AFM cantilever, which acts as a beam-type spring, and the mass of a granule is estimated from the shift in the resonant frequency. The error of the measurements associated with the method was estimated to vary between 1% and 5%, depending on the size and shape of the granule. Density measurements of spray-dried WC–Co granules are presented, and the effect of a polymeric binder and dispersant on the consolidation during drying is discussed.
Document Type: Research Article
Affiliations: YKI, Institute for Surface Chemistry, SE-114 86 Stockholm, Sweden
Publication date: August 1, 2005