G-20 meeting is running for a second day today. They started yesterday and it seems more positive news is coming out of that as the US dollar has opened Read more […]
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 artificial joints can be improved with the addition of some actual gold.
“It is about 3-4 times harder than most steels,” said Emilia Morosan, the lead scientist on a new study in Science Advances that describes the properties of a 3-to-1 mixture of titanium and gold with a specific atomic structure that imparts hardness. “It’s four times harder than pure titanium, which is what’s currently being used in most dental implants and replacement joints.”
Morosan, a physicist who specializes in the design and synthesis of compounds with exotic electronic and magnetic properties, said the new study is “a first for me in a number of ways. This compound is not difficult to make, and it’s not a new material.”
In fact, the atomic structure of the material—its atoms are tightly packed in a “cubic” crystalline structure that’s often associated with hardness—was previously known. It’s not even clear that Morosan and former graduate student Eteri Svanidze, the study’s lead co-author, were the first to make a pure sample of the ultrahard “beta” form of the compound. But due to a couple of lucky breaks, they and their co-authors are the first to document the material’s remarkable properties.
Syndicated from Mind Blowing Science! Continue reading Lab discovers titanium-gold alloy that is four times harder than most steels
Both the US and the UK reported positive manufacturing numbers over the weekend. The UK Manufacturing PMI rose to 52.1 while in the US registered 53.2 Read more […]
Positive sentiment continued in global markets last night with all major stock indices closing higher. The announcement from Mark Carney, Governor of Read more […]