Ok i have managed to raise some more cash, so i am back on track.
I had a long talk with a friend that works with furnace exhausts for central heating systems. he suggested to just use carbon fiber with epoxy.
just let the surface epoxy burn away apparently high temp open flame valves in some designs are made like this.
The surface epoxy will usually carbonizes and seal the laminate.
I have ordered some Carbon cloth and my friend is sourcing the special epoxy that they use. As soon as i get it i will begin construction
Ducted Ramjet that is meant to fly.
Moderator: Mike Everman
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Re: Ducted Ramjet that is meant to fly.
special epoxy...what type of epoxy?
Retro Flight
RetroFlight.com
RetroFlight.com
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Re: Ducted Ramjet that is meant to fly.
Regular epoxy melts but Pheonlic resin is ablative, instead of melting it flakes away as it burns. Cant find it at Tap Plastics but can be ordered from fireworks suppliers
Sailing Student- How do I know if my life jacket is tight enough?
Me- Can you breathe?
Sailing Student- Yes
Me- Then its too loose!
Me- Can you breathe?
Sailing Student- Yes
Me- Then its too loose!
Re: Ducted Ramjet that is meant to fly.
I want to try MgO - Cast it and go? Its strong enough to make hurricane proof wallboard all by itself. Actually, might be able to make a 2D ramjet with wallboard? I like that Idea since it would work with the air vehicle I'm imagining.
I like the cork and oak ideas mentioned. The idea of building a wooden ramjet is very attractive. Boric Acid would act as a fire retardent? and slow the oxidation of the carbon (refractory) layer.
I like the cork and oak ideas mentioned. The idea of building a wooden ramjet is very attractive. Boric Acid would act as a fire retardent? and slow the oxidation of the carbon (refractory) layer.
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Re: Ducted Ramjet that is meant to fly.
There is much more info on ceramics on the forum.
Let's continue about them here:
viewtopic.php?f=7&t=6301
(I fixed the link)
Fedde
Let's continue about them here:
viewtopic.php?f=7&t=6301
(I fixed the link)
Fedde
Your scepticism is fuel for my brain.
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Re: Ducted Ramjet that is meant to fly.
Try spin-casting Dow Corning DC93-104 ablative polymer over a high-temperature wire matrix. Worked well for integral rocket ramjets to replace a 3D quartz phenolic liner.
product info:
http://www.dowcorning.com/applications/ ... &type=PROD
product info:
http://www.dowcorning.com/applications/ ... &type=PROD