Community > Forum > Technology & Science > Ideal material for space suit

Ideal material for space suit

Posted by: Sigma - Fri Oct 26, 2012 4:11 pm
Post new topic Reply to topic
 [ 8 posts ] 
Ideal material for space suit 
Author Message
Space Station Member
Space Station Member
User avatar
Joined: Mon Dec 12, 2011 6:40 am
Posts: 433
Location: California and Michigan
Post Ideal material for space suit   Posted on: Fri Oct 26, 2012 4:11 pm
I have been thinking about crew survivability,
I have heard of armor that is backed with corn starch and water, that turns solid on impact, a space suit made of a very strong material that is conductive could be coated in a piezo electric layer of diamond, this layer could potentially absorb p-waves. And emmit it as energy, the fact that it is diamond would shatter a piercing projectile, a layer of kevlar in beetween the diamond piezo electric scales and the cornstarch could catch the projectile, and a final layer of kevlar could be hopefully intact, since diamond also is an excellent conductor of heat, a thermoelectric electric layer may be added.

Acceleration is still an issue.

Add in a armored para-shoot and ejection seats, and very scary things can be survived.

_________________
Let not the bindings of society hold you back from improving it.... the masses follow where the bold explore.


Back to top
Profile
Space Station Member
Space Station Member
User avatar
Joined: Sun Jan 17, 2010 2:21 pm
Posts: 437
Location: B.O.A. UK
Post Re: Ideal material for space suit   Posted on: Fri Oct 26, 2012 8:17 pm
Sigma wrote:
I have been thinking about crew survivability,
I have heard of armor that is backed with corn starch and water, that turns solid on impact, a space suit made of a very strong material that is conductive could be coated in a piezo electric layer of diamond, this layer could potentially absorb p-waves. And emmit it as energy, the fact that it is diamond would shatter a piercing projectile, a layer of kevlar in beetween the diamond piezo electric scales and the cornstarch could catch the projectile, and a final layer of kevlar could be hopefully intact, since diamond also is an excellent conductor of heat, a thermoelectric electric layer may be added.

Acceleration is still an issue.

Add in a armored para-shoot and ejection seats, and very scary things can be survived.


IIRC the so called custard armour as in using a non Newtonian fluid for protection is actually made with nano silicon dioxide in a solvent i cant recall the name of the cornstarch and water is an analogy to show how the principle works. I tell you this as custard on your face now may prevent a bullet in your guts later on the don't try this at home principle :wink: :twisted:

_________________
Someone has to tilt at windmills.
So that we know what to do when the real giants come!!!!


Back to top
Profile WWW
Space Walker
Space Walker
User avatar
Joined: Wed Jan 11, 2012 10:19 pm
Posts: 189
Location: Outside Wonko the Sane's house.
Post Re: Ideal material for space suit   Posted on: Wed Oct 31, 2012 7:11 am
Sounds heavy. You've got one thing right, any spacesuit design is going to be a composite. No single material is going to have the all proper statistics to do everything required of it. The colloid saturation layer (Corn starch, and water, or whatever you're using) would have to be pretty thick, it's not some magical substance that instantly negates the momentum of an object. That thick bulky layer will restrict movement, in an environment where you're already reduced to slo-mo due to the inflation of your suit.

As for "Armor" are you planning on getting shot at? Micrometeroids, and Kessler debris moving at orbital velocities carry more energy than you're going to be able to withstand in anything you can wear, and move around with your own muscles. I won't get too deep in the maths here, but the momentum is basically the mass, times the velocity, times the velocity again. At a minimum of about 5 miles a seccond, that 25M/S is enough to put a paint fleck through your armor, you, and your armor again, and that's not taking into account that you're moving too, so the likeliest collision is not in the same direction you're going, and therefore even faster.

The main things I would worry about in such a design are air tightedness, and radiation. Those little particals are a lot mor common up there, and can kill you just as deader, long after you re-enter the habitat.

Diamond is hard, rigid, and not all that easy to manufacture in armor sized pannels. We may be able to fix that last bit eventually, but the other thing about this hardness is it's rather brittle. It's expensive, but you can actually shatter a flawless gem quality stone with a hammer, and anvil made of steel much softer than the gem. This makes it less than ideal for stopping high velocity impacts. Those "P-waves" you're talking about is the shockwave from the high velocity impact which overloads the inelastic property of the material, causing it to break down completely into a bag of useless powder. Make that sharp, abrasive powder harder than anything it happens to be contained in, which is in turn less than ideal for the rest of your layers. Kevlar's abrasion resistance? Not really rated to diamond powder.

Graphite might actually be a better carbon allotrope for this application. It has a higher compressive strength, better thermal resistance, and doesn't shatter. Unfortunately, it's a solid lubricant (like Teflon, but not as much) so probably wouldn't slow it down much. I assume that's what the colloid saturation layer is for. I'd probably use such a composite on the habitat, rather than a suit, since flexibility isn't an issue, and it's the more likely to be hit due to it's size, and not spending most of your time outside. It could be doped, in the colloid layer with radiation absorbant substances, like graphite.

_________________
"You can't have everything, where would you put it?" -Steven Wright.


Back to top
Profile
Space Station Member
Space Station Member
User avatar
Joined: Mon Dec 12, 2011 6:40 am
Posts: 433
Location: California and Michigan
Post Re: Ideal material for space suit   Posted on: Wed Oct 31, 2012 7:42 pm
The idea was for an explosion on take off, I am not sure what the best composite would be but the thought for the very thin diamond layer was to absorb p waves with the piezoelectric effect, and heat with the thermionic effect,the hard outer layer could be anything you want, carbon fiber over graphite with interwoven carbon nano-tubes?

I have been thinking about a diamond printer, like a inkjet but with a arc furnace and a feed stock, pulsing

_________________
Let not the bindings of society hold you back from improving it.... the masses follow where the bold explore.


Back to top
Profile
Space Station Member
Space Station Member
User avatar
Joined: Mon Dec 12, 2011 6:40 am
Posts: 433
Location: California and Michigan
Post Re: Ideal material for space suit   Posted on: Wed Oct 31, 2012 10:39 pm
http://www.eng.auburn.edu/~wilambm/pap/ ... amonds.pdf

I am not sure how viable this is,

but the idea at this point is to print a layer on a graphite panel, and then have that protected by another woven carbon layer, so non Newtonian as a inner layer, the graphite coated in cvd diamond and then that assembled into a almost knight armor like interlocking structure, then a matrix of carbon/carbon nano tube matrix could be the final layer. almost like a suit for the suit...

so, you would don the dough boy armor, then step into the back of the bigger armor, then a back pack would close the suit, while connecting up to quick connects on the inside suit, I think two cameras and small eye sized screens are better then a glass face shield.

_________________
Let not the bindings of society hold you back from improving it.... the masses follow where the bold explore.


Back to top
Profile
Space Station Commander
Space Station Commander
User avatar
Joined: Mon Dec 18, 2006 11:15 pm
Posts: 908
Location: Columbus, GA USA
Post Re: Ideal material for space suit   Posted on: Thu Nov 01, 2012 2:24 am
Or just build an anthropomorphic tele-robot and control it from the comfort of your spacecraft.

The technology would have wider application than just armoring a spacesuit. You could use it on the pressure hull.


Back to top
Profile
Space Station Member
Space Station Member
User avatar
Joined: Mon Dec 12, 2011 6:40 am
Posts: 433
Location: California and Michigan
Post Re: Ideal material for space suit   Posted on: Thu Nov 01, 2012 3:26 am
Good call on the robot, if you lose it, print another...

as to armoring the crew cab, that is also great idea, are there any high carbon ore sources in orbit?

_________________
Let not the bindings of society hold you back from improving it.... the masses follow where the bold explore.


Back to top
Profile
Space Walker
Space Walker
User avatar
Joined: Wed Jan 11, 2012 10:19 pm
Posts: 189
Location: Outside Wonko the Sane's house.
Post Re: Ideal material for space suit   Posted on: Sat Dec 15, 2012 10:44 pm
No, there's no ore sources in orbit at all. It's essentually a vaccuum.

_________________
"You can't have everything, where would you put it?" -Steven Wright.


Back to top
Profile
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 8 posts ] 
 

Who is online 

Users browsing this forum: No registered users and 8 guests


cron
© 2014 The International Space Fellowship, developed by Gabitasoft Interactive. All Rights Reserved.  Privacy Policy | Terms of Use