Lab discovers titanium-gold alloy that is four times harder than most steels

Comments

• A_A@lemmy.world ⁨1⁩ ⁨year⁩ ago

  Because titanium and gold by themselves are among the most biocompatible metals and are often used in medical implants, the team believed titanium-3-gold would be comparable.

  Hum… titanium is biocompatible in part because it passivates extremely well while gold does exactly the opposite : it doesn’t react with oxygen. So, what happens when combining the two ? …

  In fact, tests by colleagues at the University of Texas MD Anderson Cancer Center in Houston determined that the new alloy was even more biocompatible than pure titanium.

  Ha ! Very good then 👍.

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  • HubertManne@kbin.social ⁨1⁩ ⁨year⁩ ago

    what the heck is passivating?

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    • A_A@lemmy.world ⁨1⁩ ⁨year⁩ ago

      Passivation (chemistry)

      Passivation is the use of a light coat of a protective material, such as metal oxide, to create a shield against corrosion.

      Titanium, aluminum, chromium, nickel and many other metals passivates rapidly in the presence of oxygen and water.

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• rigatti@lemmy.world ⁨1⁩ ⁨year⁩ ago

  Sounds cheap.

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• sj_zero ⁨1⁩ ⁨year⁩ ago

  I only looked at it briefly, but hardness isn't necessarily what you're looking for. Not a lot of grinding inside someone's body, but I bet warping is common.