Golden Serving Soup

Metals are widely used in kitchen utensils and dishes due to their beautiful appearance and appropriate strength. Nowadays, dishes in which the heat of candles are used to keep food warm are popular ones. Soup dishes are of these kind which have a metallic holder with a special place for candles. They can be exposed to corrosive and abrasive conditions during washing, so protective coatings are necessary to avoid corrosion, stains and abrasion. Moreover, these coatings improve appearance of the dishes. TiN coatings are widely used for this application because of their appropriate properties in addition to their beautiful golden color. Furthermore, they are safe for food contact which is a very important factor to choose material for this application.  The most common methods to deposit these coatings are physical vapor deposition (PVD) and chemical vapor deposition (CVD). Due to some specific properties of different PVD methods (Arc-PVD and sputtering) such as getting nanostructured coating, high speed of production and good coating quality, they have become more common for these kind of coatings.