Measuring Suspended Particle Size with High Accuracy

Kang, Qian

doi:10.15406/ipcse.2017.02.00058

Cited by 1 publication

(4 citation statements)

References 10 publications

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“…Various ISO standards were already referred to in the introduction of the paper. An extensive research of Zhang et al [25] investigated the major parameters to be considered. The main conclusions of the study are highlighted below and consider parameters of Table 6.…”

Section: Mean G(d) Formulamentioning

confidence: 99%

“…Some particle analyzers were tested for 2 powders, i.e., Al 2 O 3 (3 130 kg/m 3 ) and SiC (3 960 kg/m 3 ), with additional properties given in Table 7 [25]. Ten measurements were carried out.…”

Section: Comparing the Common Particle Size Analyzersmentioning

confidence: 99%

“…For particles with regular shapes, the sphericity can theoretically be calculated from the geometry using Equation (25). Some correlations are given in Table 9.…”

Section: ψ =mentioning

confidence: 99%

“…Sample properties and optimum dispersants. Comparison of results for Al 2 O 3 and SiC, adapted from[25].…”

mentioning

confidence: 99%

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The Need to Accurately Define and Measure the Properties of Particles

et al. 2021

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When dealing with powders, a fundamental knowledge of their physical parameters is indispensable, with different methods and approaches proposed in literature. Results obtained differ widely and it is important to define standards to be applied, both toward the methods of investigation and the interpretation of experimental results. The present research intends to propose such standards, while defining general rules to be respected. Firstly, the problem of defining the particle size is inspected. It was found that describing the size of a particle is not as straightforward as one might suspect. Factors of non-sphericity and size distributions make it impossible to put ‘size’ in just one number. Whereas sieving can be used for coarser particles of a size in excess of about 50 µm, instrumental techniques span a wide size range. For fine particles, the occurrence of cohesive forces needs to be overcome and solvents, dispersants and sample mixing need to be applied. Secondly, the shape of the particles is examined. By defining sphericity, irregularly shaped particles are described. Finally, the density of particles, of particle assemblies and their voidage (volume fraction of voids) and the different ways to investigate them are explored.

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Section: Mean G(d) Formulamentioning

confidence: 99%

Section: Comparing the Common Particle Size Analyzersmentioning

confidence: 99%