In addition to corrosion, this incompatibility of metals can lead to the discharge of nickel, generating significant allergy symptoms within the customers of the product. To perform this characterization, at ATRIA we used an electron beam scanning electron microscope . In the image you can see a check carried out on a chunk with totally different layers of metallic. Once the issue has been detected, it’s attainable to appropriate the deposition parameters of the metallic layers to avoid this kind of jewelry failure.
- The lack of this property greatly influences the quality of the product.
- Although gold was the most common and a preferred material used in Aztec jewellery, jade, turquoise, and sure feathers have been thought-about extra valuable.
- Later, the European early fashionable people had crude necklaces and bracelets of bone, teeth, berries, and stone hung on items of string or animal sinew, or pieces of carved bone used