Electroplating of the Platinum Metals Group
The platinum Metals Group consists of six metals: platinum, palladium, rhodium, iridium, ruthenium and osmium. The metals are chemically similar and usually are found together in their ores. As a group, they share many common characteristics such as high melting points, resistance to corrosion, and excellent hardness. All of these metals are relatively scarce and […]
Characteristics of Electroplated Rhodium Plating Finishes
Characteristics of Electroplated Rhodium Plating Finishes Over the last 40 years, significant technical refinements to rhodium electroplating processes for industrial products have enabled its broader commercial usage for a wide variety of decorative applications. Similar in color and specularity to polished hexavaent chrome, rhodium is the most tarnish resistant member of the platinum metals group. […]
Basics of Electroplating Principles
Electroplating can be defined as the deposit of a very thin layer of metal “electrolytically” to a base metal to enhance or change its appearance. Electroplating is done in a liquid solution called an electrolyte (fig. a ), also known as a “plating bath”. The plating bath is a specially designed chemical bath that has […]
Electroplating History (and electrodeposition of metals)
Electroplating History The history of electroplating (electrodeposition) of precious metals onto lesser metal can be reliably traced back to around 1800. Italian chemist and university professor Luigi Brugnatelli, is considered by many as the first person to utilize gold in the electroplating process. Brugnatelli was a friend of Allisandro Volta, who had just discovered the […]
