Ι What Is Aluminum Coated Magnet?
An aluminum coated magnet, typically a Neodymium magnet, features a thin aluminum layer on its surface. This coating is applied via a physical vapor deposition (PVD) process, using techniques like sputtering, vacuum deposition, and ion vapor deposition (IVD). The aluminum coating effectively shields Neodymium magnets from corrosion, particularly in moist or salty environments, as the minimal potential difference between the aluminum coating and the magnet base reduces electrochemical corrosion risks.
Moreover, aluminum naturally develops a uniform, dense, corrosion-resistant oxide layer in atmospheric conditions, enhancing an aluminum coated magnet’s durability. Coating properties can be improved through chemical and electrochemical oxidation. Other benefits include a decorative finish, adjustable thickness, negligible edge impact, and eco-friendliness, supporting sustainable applications.
