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Originally Posted by tshiggins
It doesn't say how much it masses, as compared to steel, though.
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There's a
chart in the paper which shows the peak hardness at about 7.5 g /cm^3, so pretty close to steel. It's a 3:1 ratio of Ti to Au, so that no doubt lightens it a good bit.
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Great notion to use it for medical purposes, though. Maybe I can get some really good replacement knees, someday. :)
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Also an improved coefficient of friction, apparently, so smoother operation and less wear.