Hardness

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Describes the resistance of a solid material against penetration of another solid body. It is determined by means of scratching (Mohs hardness number in geology) or by indentation methods (materials science) which differ with respect to the indenter and the load regime (Vickers, Rockwell, Knoop, Berkovich). They deliver different hardness figures.

Synonyms:
Mohs hardness Vickers hardness
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