[Land-speed] Gasket Materials

[Elon]

Keith and Mayf, sorry for being late to this party, but here is a thought.
It depends on the specific alloy, but aluminum generally melts around 1150F.
It looses 50% of its strength around 550F-600F. (Except for the new
aluminum-lithium alloys). If your EGT is 1400F-1700F, but the gasket
interface is not that hot due to cooling and radiation, it most certainly
has ZERO compressive strength. You now have a ductile material that will set
(or compress) due to clamping force, vibration, moment loads, etc. It no
longer has the properties that made it a good gasket in the first place.
-Elon



Date: Sat, 19 Jan 2008

From: "Keith Turk" kturk at ala.net

You sure it won't ever go over say 1500 degrees?  Hmmm  I'm thinking the
dead soft aluminum in an NA package might be cool.... be just a bit scared
of it with the turbo's...