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DictionarySeegoldGold Alloys
Gold Alloys alloys whose main component is gold (Au). The alloying of gold with other metals (alloying elements) has the purpose both of increasing strength and hardness and of economizing in gold. Binary gold alloys have been studied in the greatest detail. Gold-silver alloys are continuous solid solutions. At 20–40 percent silver these alloys are greenish-yellow; at 50 percent silver, pale yellow. All are soft and malleable, and their melting points increase with an increase in the gold content. Gold-copper alloys (which also form continuous solid solutions) are reddish-yellow. They are less malleable than pure gold but harder and more elastic. Annealing (below 425°–450°C) makes alloys of composition close to CuAu hard and brittle; quenching imparts softness and plasticity. Gold has been alloyed also with platinum and palladium. Gold yields intermetallic compounds (so-called aurides) with many metals. Small admixtures of antimony, bismuth, and lead make gold brittle. Gold-mercury alloys (amalgams) are used in gilding metal articles. Gold alloys are used to make coins, articles of jewelry, dental prostheses (gold-copper alloys), and electrical contacts in instruments with critical functions (gold alloys of platinum and silver). The gold content of gold alloys is expressed as purity. REFERENCESPlaksin, I. N. Metallurgiia blagorodnykh metallov. Moscow, 1958.LegalSeeGoldgold (redirected from Gold alloys)
Related to Gold alloys: white goldSynonyms for goldnoun coins made of goldRelated Words- precious metal
- atomic number 79
- Au
- gold
noun a deep yellow colorSynonymsRelated Wordsnoun a soft yellow malleable ductile (trivalent and univalent) metallic elementSynonymsRelated Words- gold foil
- gold leaf
- gold
- noble metal
- 24-karat gold
- pure gold
- gold dust
- dental gold
- green gold
- guinea gold
- graphic tellurium
- sylvanite
noun great wealthRelated Wordsnoun something likened to the metal in brightness or preciousness or superiority etc.Related Words- invaluableness
- pricelessness
- valuableness
- preciousness
adj made from or covered with goldSynonymsRelated Wordsadj having the deep slightly brownish color of goldSynonymsRelated WordsReferences in periodicals archiveNorth Wales Police said it is red, white and blue in colour with gold alloys,.Motorbike stolen from a car parkAbsorption of gas in dental gold alloys during melting.Does the casting mode influence microstructure, fracture and properties of different metal ceramic alloys?Cadmium is used in gold alloys in place of silver to obtain different shades of colour such as pale-yellow or pink.Cadmium regulation - are you prepared? The Birmingham Assay Office looks at the effects that new regulations will have on the jewellery industrySales of pure gold and gold alloys went up in the weekend at workshops andGold still rising amid continued debt crisisOrganised by the Dubai Gold & Jewellery Group (DGJG), it will highlight future trends in research to produce transparent gold, colour changing gold, and functional and smart gold alloys. It will also put spotlight on new gold colours such as purple and blue, gold alloy effects, powder metallurgy, gold based composites and new colored
gold coatings.Dubai City of Gold to focus on varietiesFuture trends in research to produce transparent gold, color changing gold, and functional and smart gold alloys will also be discussed.New types of gold set for launch at showFourteen and eighteen carat gold alloys with silver alone appear greenish-yellow and are referred to as green gold.GOLDBiosafety has become a key factor for the choice of gold alloys (Soriani et al., 2007).Investigation of stresses in teeth prepared with different tapers and restored with cast crownsNo hatchback can look quite as menacing, though my test car still boasted the bright blue paintwork and eye-catching gold alloys, though the spoiler was toned down considerably.Subaru's huge aggression settles spat |