Scratch hardness test question?

I know diamonds are very hard, but does that test relate to an activity such as smashing it against concrete? Like if you have a sledgehammer with a diamond head, would it work better than a metal one, or would it shatter?

5 Answer(s)

You are confusing HARDNESS with BRITTLENESS

Diamonds are harder than sledgedge hammers and concrete. No the diamond will not shatter.

No. A diamond hammer would shatter before a steel hammer.

Harder stuff shatters easier - that's why ceramic plates break when you drop them on the floor and why steel shatters in polar cold when it's struck.

scratch test is pretty specific, and for specific purposes.

Almost anything can be crushed, shattered, or broken.