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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) Complete Story
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) Complete Story
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) Complete Story
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) Complete Story
The popularity of white gold has us all looking to the most perplexing gold we use. Perplexing a variety of ways. Why would we want to 'colorize' gold at all? Design creativity of course, but the color purists (you know who you are) have their say too. After all there are two other precious metals that are white. I happen to like white gold on its own or for contrast. We can not just use platinum instead. A larger item can be unwieldy in platinum, and silver is a different look and market anyway.... (2004) Complete Story
