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What new materials are there?

RanulfC

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Back in the 90s I read about scientists trying to create what I will call metallic snow or styrofoam. Would be incredibly strong and very light and barely conduct heat.

Foamed Metal is what you're thinking of. It was supposed to be one of the "killer-apps" for space/microgravity manufacturing. The idea has been around since the mid-20 and is a staple in manufcturing on Earth:

The idea was to find a way to get a more uniform and greater volume (total) of gas inot the metal matrix by working in free-fall.
In free-fall melted metal would have gas injected that would creat micro-pockets making the metal exctremely light yet just as strong as the regular metal. Since the gas pockets would be so small and if exposed to vaccum before the metal cooled fully would then contain an insulating vaccum, thermal conductivity was greatly reduced. Or so the theory went anyway. Practical tests showed you need some way to get uniform distribution of the gas in teh metal and that was difficult to achieve at the time. ((Tests tended to get several large voids instead of small pockets)

Randy
 

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newsdeskdan

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Carbon nanotubes as heat shields for high-speed aircraft.

 

Grey Havoc

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robunos

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I'm surprised this hasn't been picked up on here . . .



cheers,
Robin.
 

sferrin

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Now THAT's cool. I wonder if you could put up forms and grow a house.
 

Grey Havoc

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I'm surprised this hasn't been picked up on here . . .



cheers,
Robin.
I'd come across that elsewhere, but forgot to post it, duh!
 

Racer

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I'm surprised this hasn't been picked up on here . . .



cheers,
Robin.
I'd come across that elsewhere, but forgot to post it, duh!

So... 90% light reflective. Now adjust to laser frequencies and your future laser weapons have an issue. Try to shoot down such coated targets.
 

Grey Havoc

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Grey Havoc

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chimeric oncogene

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I tend to be skeptical regarding the possibility of stable superheavy elements. If they existed, shouldn't we have seen traces of them in supernovae by now?

Edit: I know CERN gets higher energy densities than supernovae, but still pretty skeptical.
 

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Rhinocrates

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It looks like mould and rust could be good radiation protection, or rather melanin and certain metal oxides. See the links below the video as well.

 

Rhinocrates

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Speaking of fungi, mycelium is being explored for a number of architectural applications, including building in space.




 

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