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→Precious Metal Powders
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Precious metal powders are produced by various methods, such as for example electrolysis, atomizing from the molten phase, chemical precipitation,
or by cementation with non-precious metals. Depending on the manufacturing process silver powders – as the by far largest volume precious metal powder used – have different properties as shown in <xr id="tab:DifferentTypesofSilverPowders" /> (Tab. 8.1) and [[Silver_Based_Materials|Table 2.12]] (Tab. 2.12). Atomizing from a melt results in a powder with high tap density composed of spherical particles. Using electrolytic deposition from a silver salt solution creates randomly shaped dentritic to crystalline particle structures. Chemical processes can result in rather fine particles with a large specific surface area. <xr id="fig:Different shapes of silver powders"/> Fig. 8.1 shows typical SEM photo-graphs of atomized silver powder in spherical shapes (a) and a cementation powder composed of rounded crystal agglomerates (b).
