Re: Towers to the Stars

Date: Wed Mar 01 2000 - 09:35:33 MST

Robert J. Bradbury, <>, writes:
> Pg. 386 of NM says the Young's Modulus is ~400 GPa for saphire and 1050 GPa
> for diamond. But what we really need are some comparisons between the
> compressive and tensile strength. Since it isn't in the Structural Materials
> sheet from my Physical Properties workbook, I doubt I've run across it in
> any of the books I currently have. "Honey, can I see your diamond for
> a minute?", "Why?", "Oh, the school won't give me the funds to do
> a compression test on one, so I figured I'd use yours....".

I don't have figures, but diamond anvil compression cells are quoted as being
good up to 100 kbar, which would be about 10^8 g/cm^2, so you might use that
as a ballpark upper limit for the weight that can be supported by a diamond


This archive was generated by hypermail 2b29 : Thu Jul 27 2000 - 14:04:23 MDT