An enhanced centrifuge-based approach to powder characterization: Particle size and Hamaker constant determination

An enhanced centrifuge-based approach to powder characterization: Experimental and theoretical determination of a size-dependent effective Hamaker constant distribution

“…The particle removal from the nominally flat steel does not generate information that can be used to determine the size distribution. In other work in which this method is executed using plates with highly-engineered topography, it is possible to extract the size distribution from the removal curves [34].…”

“…The goal of this work is to demonstrate that the analysis of the classical centrifuge technique can be modified to provide this higher quality information about particles/powders. Previous work established the theoretical basis for this current study, which includes experimental results and simulations with the modified analysis [34]. For this purpose, experiments using the centrifuge technique were performed with silica particles adhering to stainless steel.…”

Preventing nuclear fuel material adhesion on glove box components using nanoparticle coating

“…The centrifugal method is widely used as a simple and practical method for measuring the adhesion force between particles and substrates (Suzuki et al, 2013;Booth et al, 1987;Podczeck et al, 1996, Podczeck, 1999Thomas et al, 2015;Thomas et al, 2017). The adhesion force between the particle and surface of a test piece was measured using the centrifugal equipment shown in Figure 7.…”

NHERI Centrifuge Facility: Large-Scale Centrifuge Modeling in Geotechnical Research

“…Enhanced gravity testing also has the potential for increased utilization in scientific disciplines other than geotechnical and hazards engineering, as evidenced by various applications described in the literature. Centrifuge modeling has been used to study a range of geoenvironmental problems, from contaminant transport (Culligan-Hensley and Savvidou, 1995) to site remediation strategies (Marulanda et al, 2000); a number of geologic processes, including intrusions (Dixon and Simpson, 1987), faulting (Koyi and Skelton, 2001), and ice mechanics (Langhorne et al, 1999;Guerin et al, 2016); a number of manufacturing processes, including welding (Aidun and Martin, 1998), casting (Fukui, 1991;Zhang et al, 2018), and powders (Thomas and Beaudoin, 2015); and processes related to gasses and fires (Most et al, 1996). The "Spin your thesis" program by the European Space Agency 3 encourages a wide breadth of potential applications by enabling student researchers to perform research on self-selected topics, with many related to fluids and biological processes, on a centrifuge with centrifugal accelerations up to 20 g.…”