Materialise Creativity & Mass Customization (MC2 STUDIO)
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      • Why Palladium Silver?
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What is Palladium Silver?

Palladium (Pd)

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A silvery white precious metal under PGM (Platinum Group Metals)


Refer from wikipedia
Palladium itself has been used as a precious metal in jewelry since 1939, as an alternative to platinum for making white gold. This use resulted from the naturally white color of palladium, which required no rhodium plating. Palladium is proportionally much lighter than platinum. Similar to gold, palladium can be beaten into a thin leaf form as thin as 100 nm (1/250,000 in).[3] Unlike platinum, palladium may discolor upon heating to above 400 °C;[52] it is relatively brittle and reacts with strong acids such asnitric acid.[53]

Palladium is one of the three most popular metals used to make white gold alloys (nickel and silver can also be used).[34] Palladium-gold is a more expensive alloy than nickel-gold, but seldom causes allergic reactions (though certain cross-allergies with nickel may occur).[54]

When platinum was declared a strategic government resource during World War II, many jewelry bands were made out of palladium. As recently as September 2001,[55]palladium was more expensive than platinum and rarely used in jewelry also due to the technical obstacle of casting. However, the casting problem has been resolved and its use in jewelry has increased because of a large spike in the price of platinum and a drop in the price of palladium.[56]

Prior to 2004, the principal use of palladium in jewelry was the manufacture of white gold. In early 2004, when gold and platinum prices rose steeply, China began fabricating significant volumes of palladium jewelry and used 37 tonnes of palladium for this purpose in 2005. Changes of the relative price between palladium and platinum after 2008 lowered demand for palladium to 17.4 tonnes in 2009.[57][58]


Germanium (Ge)

Picture
A lustrous, hard, greyish white metal metal in carbon group


Refer from wikipedia
In recent years germanium has seen increasing use in precious metal alloys. In sterling silver alloys, for instance, it has been found to reduce firescale, increase tarnish resistance, and increase the alloy's response to precipitation hardening. A tarnish-proof sterling silver alloy, trademarked Argentium, requires 1.2% germanium.[23] 


Our Mix:

Palladium silver = 92.5% Ag + 4-5% Pd + 1.5-2% Ge + 0.5-2% Indium/zinc

Results:

A pearlishy white all precious metal which has an excellence tarnishing resistance compare to traditional sterling silver which contain 7.5% copper that easily get tarnished.  

Why Tarnish Resistance?

Germanium will react with oxygen to form Germanium Oxide which create a protective coating on silver.


How to care of Palladium Silver?

Try not to spray perfume direct on to the ring cause even a 18K gold jewelry will tarnish. Also beware of some pimple cream which contain sulphur will also tarnish the material. If you put a side for a while the material will form a thin layer of yellowish colour (this is due to oxidization) , but the colour can be easily rub off when you wear it the do normal daily activities. To maintain the shine, you can use "brasso" or from time to time send it back to us for "servicing". 
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