Hardness (materials science): Difference between revisions

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Hardness is the characteristic of a solid material expressing its resistence to penetration, and by extension its power of penetration in softer materials. An object made of a hard material will scratch an object made of a softer material.

Hardness is usually measured on various scales, such as the Rockwell scale or the Mohs scale.

Pure diamond is the hardest known substance (on every scale), so it will scratch anything.

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	'''Hardness''' is the characteristic of a material expressing its resistence to penetration, and by extension its power of penetration in softer materials. An object made of a hard material will scratch an object made of a softer material.		'''Hardness''' is the characteristic of a [[solid]] material expressing its resistence to penetration, and by extension its power of penetration in softer materials. An object made of a hard material will scratch an object made of a softer material.

	Hardness is usually measured on various scales, such as the [[Rockwell scale]] or the [[Mohs scale]].		Hardness is usually measured on various scales, such as the [[Rockwell scale]] or the [[Mohs scale]].