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Looking for a low weight - high stiffness material

Looking for a low weight - high stiffness material

Looking for a low weight - high stiffness material

(OP)
I am serching for a material that is available in sheet form to replace the Molybdenum I am currently using. The Moly to too heavy. Any suggestions?

RE: Looking for a low weight - high stiffness material

Fiber-reinforced composites and ceramics have higher elastic modulus and lower mass density than Mo.  Depending on the shape and loading of the sheet, Ti, Al, or Mg could be used.

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Cory

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RE: Looking for a low weight - high stiffness material

You do not define what density or modulus of elasticity is desired. Niobium (Columbium) alloys may prove useful.

RE: Looking for a low weight - high stiffness material

graphite/epoxy composites have very high specific striffness (modulus/density).  You can play with the fibers (grahite, boron and various glasses) to control the modulus.  I don't recall any metal having a higher specific stiffness than Mo.

= = = = = = = = = = = = = = = = = = = =
Corrosion never sleeps, but it can be slowed down.

RE: Looking for a low weight - high stiffness material

(OP)
As far as preferred modulas and density, I would like something with a modulas of Alumina (~45) and the density of Titanium (~.164lb/in3) but that's not likely to happen. The concern with Alumina is its low strength, or brittleness. And Titanium or Ti alloys only have a modulas around 16. So, if I could have the Modulas of Moly but at 1/3 the mass, I'd be a very happy man. Any chance of that?

RE: Looking for a low weight - high stiffness material

(OP)
Thanks for the AlBeMet lead. I'll look into it.

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