Aluminium granules

Fine spherical aggregates of aluminium

Aluminium granules are fine spherical aggregates of aluminium.^[1]^[2]^[3]^[4]

Manufacture

Aluminium granules are manufactured by the melting of primary or secondary aluminium and blown in air or vacuum, or are cast in sand and then sieved off. Other methods include casting of molten aluminium in water.

Granules versus powders

Aluminium granules have been found safer and economical compared to atomized aluminium powder. Aluminium granules have lower explosion risk in production and in use of the product itself.

Advantages

The density of aluminium granules ranges from 1.0 to 1.8 g/cm³ and is much higher compared to aluminium powder.

References

^ Davies, Joseph R., ed. (1993), "Powder Metallurgy Processing", Aluminium and aluminium alloys, ASM Speciality Handbook Series (5th ed.), ASM International, pp. 275–284, ISBN 978-0-87170-496-2.
^ Wissling, Peter (2006) Metallic Effect Pigments: Fundamentals and Applications. Vincentz Network GmbH & Co KG. pp. 14-15. ISBN 3878701713
^ Lollchund, M. R. (2009). International Conference on Advances in the Theory of Ironmaking and Steelmaking (ATIS 2009), December 09-11,2009. Allied Publishers. pp. 450-451. ISBN 8184245394
^ Neikov, Oleg D.; (et al.) (2004). Handbook of Non-Ferrous Metal Powders: Technologies and Applications. Elsevier. pp. 271-272. ISBN 0080559409