Talk:Brittleness

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what is the relation b\w brittleness and density?

- None :
Tungsten is heavy (19.25  g·cm−3) and can be brittle
Lead is heavy (11.34  g·cm−3) and malleable (Lead glass on the other hand is brittle as well as heavy : 6  g·cm−3)
Graphite is light (2.09–2.23 g/cm³) and brittle
Aluminium is also rather light (2.70 g·cm−3) and malleable

"When used in materials science, it is generally applied to materials that fail in tension rather than shear"

I don't see why it should fail in tension more than shear. It might be true for bending where external fibers would break sooner than for a malleable material, but tension ? —Preceding unsigned comment added by 84.12.218.218 (talk) 12:10, 20 November 2007 (UTC)