HARDNESS

Hardness

Hardness is a measure of how resistant solid matter is to various kinds of permanent shape change when a force is applied. Macroscopic hardness is generally characterized by strong intermolecular bonds, but the behavior of solid materials under force is complex; therefore, there are different measurements of hardness: scratch hardness, indentation hardness, and rebound hardness.

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hardness

Noun

  1. The quality of being hard.
  2. An instance of this quality; hardship.


The above text is a snippet from Wiktionary: hardness
and as such is available under the Creative Commons Attribution/Share-Alike License.

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