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Patina (/ p ə ˈ t iː n ə / pə-TEE-nə or / ˈ p æ t ɪ n ə / PAT-ih-nə) is a thin layer that variously forms on the surface of copper, brass, bronze, and similar metals and metal alloys (tarnish produced by oxidation or other chemical processes), or certain stones [1] and wooden furniture (sheen produced by age, wear, and polishing), or ...
Bronze is a metallic brown color which resembles the metal alloy bronze. A bronze medal. The first recorded use of bronze as a color name in English was in 1753. [3]
Bronze is an alloy consisting primarily of copper, commonly with about 12–12.5% tin and often with the addition of other metals (including aluminium, manganese, nickel, or zinc) and sometimes non-metals (such as phosphorus) or metalloids (such as arsenic or silicon).
The Statue of Liberty, showing advanced patination; verdigris is responsible for the statue's iconic green colour.. Verdigris (/ ˈ v ɜːr d ɪ ɡ r iː (s)/) [1] is a common name for any of a variety of somewhat toxic [2] [3] [4] copper salts of acetic acid, which range in colour from green to a bluish-green depending on their chemical composition.
The surface finish is usually satin, but it can be turned glossy by coating in a clear high-gloss enamel. [8] On a microscopic scale dendrites form on the surface finish, which trap light and increase absorptivity. Because of this property the coating is used in aerospace, microscopy and other optical applications to minimise light reflection. [8]
Japanning is a type of finish that originated as a European imitation of East Asian lacquerwork. It was first used on furniture, but was later much used on small items in metal. The word originated in the 17th century. American work, except in the carriage and early automobile industries, is more often called toleware. [1]
Corinthian bronze, also named Corinthian brass, aes Corinthiacum, or Grilver was a metal alloy in classical antiquity. It is thought to be an alloy of copper with gold or silver (or both), although it has also been contended that it was simply a very high grade of bronze , or a kind of bronze that was manufactured in Corinth . [ 1 ]
Bronze 3rd place Green 4th & 5th place Light Blue 6th–10th place Dark Blue 11th place or lower Purple Did not finish Red Did not qualify (DNQ) Brown Withdrawn (Wth) Black Disqualified (DSQ) White Did not start (DNS) Blank Did not participate (DNP) Driver replacement (Rpl) Injured (Inj) No race held (NH)