Scientists accidentally capture metals 'healing' themselves
www.popsci.com
Materials scientists witnessed metals—in this case copper and platinum—undergoing the process of 'intrinsic self-healing.'

Scientists accidentally capture metals ‘healing’ themselves::Materials scientists witnessed metals—in this case copper and platinum—undergoing the process of ‘intrinsic self-healing.’

  • @SkyrmirEnglish
    37•1 year ago

    Kinda sensationalist when we’ve known about cold welding for as long as the space program at least. Metals bond in a vacuum because there are no oxygen molecules to bond with their surface, when that surface is abraded. It makes for one of the bigger challenges in space, bearings that don’t seize up. Along with the even bigger challenge, an air tight bearing that doesn’t seize up, or leak.

    • @wmassinghamEnglish
      4•1 year ago

      Heck, you can almost do cold welding right here. If you have two very, very flat metal parts, and press them together hard, just with your hands, you can get them to stick together.