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Metallurgy (23)
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[685] 950 Palladium: Emerging White Metal of Choice
Of late, an increasing number of white precious metal alloys have been introduced into the jewelry marketplace in answer to industry cries for a true white counterpart to the ever popular yellow gold. The search has been on for a workable white alloy that stays white, is hypoallergenic and priced more agreeably than the often prohibitive platinum. Alloys emerging include mixtures of 50/50 platinum and palladium, 585 platinum with cobalt and copper and several alloy combinations in between. Surveys indicate consumers appreciate the purity of 900 to 950 platinum, and would prefer the purity of a 950 palladium alloy if considering an alternative.... (2005)
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Show me more articles from: [Visual Communications]|[Mark B. Mann]
Releated Categories: [Metals]


[966] Adding Color to Titanium with a Torch
Adding or changing the color on your sculpture Titanium can breathe new life or change the character of a piece. It is also lots of fun to see the color develop and change in front of your very eyes! The color on the surface of our titanium has a permanent oxide layer that can only be removed with abrasives. The color was originally produced with heat. It starts out silver, then gold, blue, purple, magenta, bronze, green, pink and finally gray. Subtle colors also appear and depending on the natural surface finish you may get different effects. I am always surprised when I find a new shade of blue or pink or a satin luster when I expected a metallic luster.... (2009)
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Show me more articles from: [Ganoksin]|[Holly Gage]
Releated Categories: [Metals]


[498] Alloying 22KT Gold for Granulation
An alloy is by definition a mixture of two or more metals to create different strengths and colors. For granulation, the following formula is preferred. It is important to start with pure metals. Even trace amounts of impurities can result in flaws in the metal.... (2005)
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Show me more articles from: [Ganoksin]|[Ronda Coryell]
Releated Categories: [Granulation]|[Metals]


[477] Aluminum: Welded and Wearable
The purpose of this paper is to acquaint the reader with the advantages and disadvantages of utilizing aluminum as a material for construction of wearable ornaments. In high-purity form aluminum is soft and ductile. Most commercial uses, however, require greater strength than pure aluminum affords. This is achieved in aluminum first by the addition of other elements to produce various alloys which singly or in combination impart strength to the metal.... (1978)
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Show me more articles from: [The Metalsmith Papers]|[Marcia Lewis]
Releated Categories: [Metals]


[377] Causes and Prevention of Defects in Wrought Alloys
Much of the recent literature on defects that occur in jewelry manufacture is focused on those occurring in lost wax investment casting, However, defects can also occur during casting of ingot and its fabrication into sheet, tube, wire and rod as well as their onward fabrication into jewelry components by processes such as stamping and forging. These defects, along with their causes and prevention, are briefly reviewed in this article.... (2002)
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Show me more articles from: [The World Gold Council]|[Mark F. Grimwade]
Releated Categories: [Metals]|[Jewelry Mass Production]


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