The alloy is the hardest known metallic substance compatible with living tissues, say US physicists.
The material is four times harder than pure titanium and has applications in making longer-lasting medical implants, they say. It may also have applications in the drilling industry, the sporting goods industry and many other potential fields, she added.
But, how brittle is it? Some metals that are very hard are also very brittle, which would not be a good thing in, say, a hip joint.