Super-hard metal 'four times tougher than titanium'

Re:Super-hard metal 'four times tougher than titanium' by simbas on Sunday July 24, 2016 @01:31PM (#12153961)

Plastics aren't hard, as are ceramics, metals and other cristalling structure, because you can scratch/penetrate it.

Check this out for a quick comparaison about toughness: elongation of polymers is pretty easy. http://images.slideplayer.com/32/9819762/slides/slide_7.jpg

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Re:Super-hard metal 'four times tougher than titanium' by StavrosK on Sunday July 24, 2016 @01:56PM (#12154048)

Ugh, sorry, I meant to type "rubber" and typed "plastic" instead. Rubber both resists scratches and permanent deformation, no?

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Re:Super-hard metal 'four times tougher than titanium' by bronson on Sunday July 24, 2016 @03:43PM (#12154507)

You're asking if rubber is considered hard? What type of rubber do you have in mind?

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Re:Super-hard metal 'four times tougher than titanium' by StavrosK on Sunday July 24, 2016 @06:26PM (#12155202)

Any, I guess. Tyre rubber is not easily deformed permanently, although I guess it is easy to scratch.

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