Researchers in the US have developed a new 18-carat gold alloy that could replace existing alloys in a variety of jewellery, dental, medical and electronic applications. The new alloy developed by Jan Schroers and colleagues at the California Institute of Technology and Liquidmetal Technologies, also in California, contains gold, copper and silicon, with smaller amounts of silver and palladium (Appl. Phys. Lett. 87 061912).

Going for gold

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