Introduction:

High Purity Silver (Ag) Foil / Sheet / Plate / Disk

Silver is a very workable noble metal with the highest degree of electrical conductivity of all metals. It can be rolled into very thin foils.

In addition, among metals silver is the best thermal conductor. It provides very good shielding and anti-bacterial effects and is resistant to oxidation.

Silver is about 20 times more common than gold, but 700 times rarer than copper. The element symbol Ag refers to the Latin word "argentum", or silver.

Silver is a noble metal, extensively used in SERS, photocatalysis and solar cells. The surface of silver can be functionalized to attain specific properties such as biocompatibility and vapor selectivity of sensors. Iodized silver foils and thin films find potential use as SERS-active metal substrates. Cu substrates laminated with Ag foils, have compatible coefficient of thermal expansion (CTE), to be used for electronic packaging. Porous ZnO nanoplates deposited on silver foil with tunable hydrophobicity may be fabricated.

Silver was known to ancient civilizations. Silver is a soft, malleable metal with a characteristic sheen. It has the highest thermal and electrical conductivities of all metals. It is generally found uncombined, or in the sulfide or arsenide ores from which it can be recovered as a cyanide complex which is subsequently reduced to the metal, in aqueous solution, by the use of zinc. The pure metal is stable to water and oxygen but is attacked in air by sulfur bearing compounds to form the characteristic black layer of silver sulfide. It is soluble in sulfuric and nitric acids. Some silver salts are sensitive to light (e.g. AgI, AgCl and AgBr) and are of fundamental importance to photography. Other applications and industries in which silver is used include the manufacture of jewellery (both as the pure metal and as a constituent of various alloys), the electrical industry (e.g. in the manufacture of contacts) and for the silvering of glass.

Thin sheets of pure metal and metal alloys. Due to their fragile nature, some foils are coated on one side with an acrylic or polyester support. Where foils are supported they are indicated in the detailed item description.

Application areas for silver and silver foils include:

Electrical technology

Medical technology

Decorative applications

Metal leaf

Etching applications

Expanded metal

Punched foils

Battery industry

Manufacture of superconductors

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