Physics:Flowability
From HandWiki
Short description: Physical property of a powder
Flowability, also known as powder flow is a property that defines an ability of a powdered material to flow, related to cohesion.[1]
Powder flowability depends on many traits:[1][2]
- the shape and size of the powder particles due to intermolecular force,
- porosity
- electrostatic activity
- hygroscopy
- bulk density
- angle of repose
- presence of glidants
- oxidation rate (of a metallic powder)
- humidity
ISO 4490:2018 norm (and its precedent, ISO 4490:2014) standardizes a method for determining the flow rate of metallic powders. It uses a normalized/calibrated funnel, named Hall flowmeter.[3]
See also
- Fluid mechanics
- Soil mechanics
- Cohesion (geology)
- angle of repose
References
- ↑ 1.0 1.1 Karolina Szulc, Andrzej Lenart (2009). "WŁAŚCIWOŚCI KOHEZYJNE WYBRANYCH PROSZKÓW SPOŻYWCZYCH" (in pl). Warsaw University of Life Sciences. https://yadda.icm.edu.pl/baztech/element/bwmeta1.element.baztech-article-BAR0-0045-0061/c/httpir_ptir_orgartykulypl111ir1112478pl.pdf.
- ↑ "Badanie własności proszków" (in pl). http://www.kmimp.agh.edu.pl/pliki/cz2.pdf.
- ↑ "ISO 4490:2014" (in en). https://www.iso.org/cms/render/live/en/sites/isoorg/contents/data/standard/06/51/65132.html.
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