Sergey participates in this conference every year, but this time he prepared something unusual for the audience: he spoke about jewellery alloys and products made of them.
During his report, Sergey stated that pure precious metals have low mechanical properties, in other words, it is a very soft material, which is why it is difficult to work with them. Therefore, jewellers use alloys: a mixture of pure metal and alloying elements. Often, the composition of the alloying elements is not disclosed by the manufacturer and may contain substances harmful to humans’ health.
A ligature is used to achieve a specific sample (or fineness). The fineness shows how much precious metal is in an alloy. There are two main sampling systems: carat (used only for gold) and metric (for all others). The higher the fineness is, the more precious the alloy is.
The founder of the jewellery studio PalladinGold™ was interested in how to achieve high mechanical properties (in particular, high hardness) without lowering the fineness. Many experiments have been carried out within several years, which resulted in the creation of absolutely new and unique alloys based on the precious metal of palladium - PalladinGold™ 850 and PalladinGold™ 950.
Sergey listed the properties that distinguish his alloys from alloys of "white" gold:
- High content of precious metal
- High hardness
- Fewer scratches
- No rhodium plating
- Mirror shine that persists for a long time
- Unlimited polishing
- Hypoallergenicity of alloys
At the end of his presentation, Sergey noted that he opened the PalladinGold™ jewellery studio in Moscow, where jewellery from innovative alloys will be sold.