Titanium-gold alloy that is four times harder than most steels
Titanium is the leading material for artificial knee and hip joints because it’s strong, wear-resistant and nontoxic, but an unexpected discovery by Rice University physicists shows that the gold standard for artifi cial joints can be improved with the addition of some actual gold. ‘It is about 3-4 times harder than most steels,’ said Emilia […]
